Sitnit.com · Complete Tool Directory · 2026
Free Online Calculators & AI Tools
All in One Place.
217 free calculators and AI tools across finance, health, math, personal care, education and pets. No login. No subscription. Works on any device.
Financial Calculators
Tax, mortgage, investment, inflation, cost of living and savings tools for 16+ countries — USA, UK, India, Canada, Australia, Germany, Singapore, New Zealand, UAE, Saudi Arabia, Ireland, Netherlands, Switzerland, Finland and Norway. Built on official government data — IRS, HMRC, ATO, IRAS, IRD, FTA, ZATCA, CRA, Revenue.ie, Belastingdienst and more.
All Financial Calculators — Complete Hub
Every financial tool in one place, organised by country and category. Tax, mortgage, investment, inflation and more across 16+ countries.
India Financial Calculators Hub
India-specific tools — income tax, home loan EMI, NPS, FD, PPF vs ELSS, stamp duty, mutual fund overlap and more.
US-specific tools — federal tax, paycheck, 401k, Social Security, student loan, CD, HSA vs FSA and more.
Canada Financial Calculators Hub
7 CRA-aligned tools — income tax, inflation, mortgage, land transfer tax, BC property transfer tax, student loan and cost of living.
8 UAE-specific tools — salary (0% tax), gratuity (EOSB), VAT 5%, mortgage, personal loan, car loan, rent vs buy and cost of living for Dubai & Abu Dhabi.
Saudi Arabia Financial Calculators Hub
4 KSA-specific tools — salary (0% income tax), end-of-service gratuity, Zakat calculator and cost of living for Riyadh & Jeddah.
Singapore Financial Calculators Hub
4 Singapore-specific tools — income tax, CPF, salary after tax and stamp duty (BSD, ABSD, SSD). Built on IRAS and CPF Board data for YA 2026.
UK-specific tools — income tax, take-home pay, NHS pay, mortgage, Land Registry fees, company car tax, corporation tax, inflation, student loans, debt repayment and cost of living. Built on HMRC and ONS data.
Australia Financial Calculators Hub
Australia-specific tools — ATO income tax, salary after tax, superannuation, mortgage, stamp duty, rent vs buy, novated lease, HECS-HELP repayment and cost of living. Built on ATO and ABS data FY 2025-26.
Ireland Financial Calculators Hub
Ireland-specific tools — income tax, take-home pay, mortgage, stamp duty and pension calculator. Built on Revenue.ie data for 2025-26.
Netherlands Financial Calculators Hub
Netherlands-specific tools — salary, take-home pay, mortgage, 30% ruling for expats and cost of living for Amsterdam & Rotterdam. Built on Belastingdienst data 2025-26.
Income Tax & Salary — By Country
- GST Calculator Canada
Add or remove GST, HST and PST for any Canadian province or territory — 2026 rates.
New - Federal Income Tax Calculator USA
US federal income tax — 2025-26 IRS brackets and standard deductions.
Free - US No Tax on Tips Calculator
Calculate your tax savings under the US no-tax-on-tips policy — tip income exclusion estimates for service workers.
USA - US SALT Deduction Calculator
Estimate your State and Local Tax (SALT) itemised deduction and see how the federal cap affects your tax bill.
New - UK Income Tax Calculator 2025-26
HMRC bands, National Insurance, personal allowance — England, Wales & Scotland.
Free - UK Take-Home Pay Calculator
Net monthly and annual pay after Income Tax, National Insurance and pension contributions.
New - NHS Pay Calculator 2026/27
Take-home pay by Agenda for Change band after tax, National Insurance, pension and student loan — plus pay rise and back pay.
New - UK Overtime Calculator
Calculate overtime pay and its effect on your take-home pay after tax and National Insurance.
New - Company Car Tax Calculator UK
Estimate the Benefit-in-Kind tax on a company car and what it costs you each month.
New - Corporation Tax Calculator
Estimate corporation tax due on company profits and the profit left after tax.
New - Australia Salary After Tax Calculator
Take-home pay after income tax, Medicare levy and HECS-HELP for Australian residents — FY 2025-26.
Free - Einkommensteuerrechner Deutschland 2025-26
All 6 Steuerklassen, solidarity surcharge, church tax — §32a EStG formula.
Free - NZ PAYE Calculator 2025-26
New Zealand PAYE tax, KiwiSaver, ACC levies, student loan — IRD 2025-26.
Free - Ireland Income Tax Calculator 2025-26
USC, PRSI, income tax bands and tax credits for PAYE employees — Revenue.ie 2025-26.
Free - VAT Calculator Ireland
Add or remove Irish VAT instantly — standard, reduced and zero rates under Revenue.ie rules.
New - Ireland Take-Home Pay Calculator
Net pay after income tax, USC and PRSI deductions for Irish employees — weekly, fortnightly or monthly.
Free - Netherlands Salary Calculator 2025-26
Gross to net salary for employees in the Netherlands — income tax, social security and holiday allowance.
Free - Netherlands Take-Home Pay Calculator
Dutch net monthly take-home pay after loonbelasting (payroll tax) and social insurance contributions.
Free - Switzerland Salary Calculator 2025-26
Gross to net salary in Switzerland — federal and cantonal income tax, AHV/IV/EO social insurance and pension contributions.
Free - Singapore Salary After Tax 2026
Take-home pay for Singapore residents and Employment Pass holders after CPF and income tax.
Free - Singapore CPF Calculator 2026
All age bands, OA/SA/MA allocations and PR graduated rates — January 2026 CPF rates.
Free - W-4 Tax Withholding Calculator
Optimise your W-4 to avoid underpaying or overpaying federal taxes.
Free - 1099 Tax Calculator USA
Self-employment tax, quarterly payments and deductions for 1099 freelancers.
Free - Paycheck Calculator USA
Take-home pay after federal, state tax, FICA and Medicare — hourly or salary.
Free - UAE Salary Calculator 2026
Calculate UAE net salary — 0% personal income tax, GOSI for nationals, DEWS for DIFC employees.
0% Tax - UAE VAT Calculator 2026
Add or remove UAE’s 5% VAT instantly — FTA rates, zero-rated and exempt categories.
5% VAT - Saudi Arabia Salary Calculator 2026
Calculate KSA net take-home pay — GOSI deductions for Saudi nationals, 0% income tax for all residents.
0% Tax
🇺🇸 US State Paycheck Calculators — New
- New York Paycheck Calculator
Take-home pay after federal tax, NY state tax, NYC/Yonkers local tax and FICA.
New - Florida Paycheck Tax Calculator
Take-home pay for Florida employees — no state income tax, just federal tax and FICA.
New - Texas Paycheck Calculator
Take-home pay for Texas employees — no state income tax, just federal tax and FICA.
New - Illinois Paycheck Calculator
Take-home pay for Illinois employees after federal tax, Illinois state income tax and FICA.
New
Mortgages & Home Loans — By Country
- USA Mortgage Calculator
Monthly payment, total interest and amortisation schedule for US home loans.
Free - DTI Calculator
Calculate your debt-to-income ratio — the key number US lenders use to qualify you for a mortgage.
New - Home Loan EMI Calculator India
Monthly EMI with Indian interest rates, tenure and prepayment schedule.
Free - UK Mortgage Calculator 2025-26
Monthly repayments, total cost and affordability for UK residential mortgages.
Free - Land Registry Fee Calculator
Estimate HM Land Registry fees for a property purchase or transfer in England and Wales.
New - Colorado Mortgage Calculator
Monthly payment and amortisation for Colorado home loans, including county property tax estimates.
New - Mobile Home Loan Calculator
Monthly payments for manufactured and mobile home loans — chattel and real property financing.
New - Canadian Mortgage Calculator 2025-26
Monthly payments, CMHC insurance and stress test estimates for Canadian mortgages.
Free - Land Transfer Tax Calculator
Provincial land transfer tax on a Canadian home purchase, including Toronto’s extra municipal LTT.
New - BC Property Transfer Tax Calculator
British Columbia’s Property Transfer Tax, including first-time home buyer and newly-built home exemptions.
New - Australian Mortgage Calculator 2025-26
Monthly repayments, comparison rate, stamp duty and LMI estimates.
Free - Offset Calculator
See how an offset account reduces your mortgage interest and how much sooner you could repay your loan.
New - Ireland Mortgage Calculator 2025-26
Monthly repayments, total interest and Central Bank LTV rules for Irish residential mortgages.
Free - Hypothekenrechner Deutschland 2025-26
Annuity and linear repayment, Nebenkosten and KfW rates — 2025-26 regulations.
Free - Swiss Mortgage Calculator
Estimate monthly payments, interest and amortisation for a home loan in Switzerland.
New - Netherlands Mortgage Calculator
Estimate monthly payments, total interest and repayment costs for a Dutch home loan.
New - UAE Mortgage Calculator 2026
Monthly repayments, Central Bank LTV rules and DLD fee estimates for UAE home loans.
Free - NZ Mortgage Repayment Calculator
Calculate monthly repayments, total interest and payoff timeline for New Zealand home loans.
Free - Reverse Mortgage Calculator USA
HECM loan amounts, equity payouts and eligibility for senior homeowners.
Seniors - PMI Removal Calculator USA
Find out when you can remove private mortgage insurance and how much you’ll save.
Free
Loans, EMI & Debt
- Loan Calculator
Monthly payment, total interest and amortisation schedule for any loan — any currency.
Global - Hard Money Loan Calculator
Monthly payments, points and total cost for short-term real estate investor loans.
New - Student Loan Calculator USA
Monthly payments, total interest and payoff timeline for federal and private loans.
Free - UK Student Loan Calculator 2025
Plan 1, 2 & 5 monthly repayments, total cost and write-off timeline.
Free - Student Finance Calculator UK 2026/27
Maintenance Loan and Tuition Fee Loan by household income, based on the official rate table.
New - Canada Student Loan Calculator
Federal and provincial student loan repayment — NSLSC payment schedules.
Free - HECS-HELP Repayment Calculator Australia
Annual HECS-HELP student debt repayments based on income — ATO repayment thresholds 2025-26.
Free - Debt Payoff Calculator
Avalanche vs snowball strategy — personalised debt elimination plan, any currency.
Global - UK Debt Repayment Calculator
Payoff plan for UK credit cards and loans using avalanche or snowball method.
Free - Loan Eligibility Calculator India
Check home, car and personal loan eligibility based on income and obligations.
Free - UAE Personal Loan Calculator
Monthly instalments for UAE personal loans — reducing balance method as required by Central Bank of UAE.
Free - UAE Car Loan Calculator
Monthly instalments, total interest and amortisation for car loans from UAE banks — flat and reducing balance rates.
Free - Novated Lease Calculator
Estimate novated lease payments and the tax savings for Australian employees.
New
Inflation — By Country
- UK Inflation Calculator
UK purchasing power changes using ONS RPI/CPI data — any year to 2026.
ONS Data - Canada Inflation Calculator
Canadian purchasing power changes using Statistics Canada CPI data.
StatsCan - India Inflation Calculator
Purchasing power changes in India from any year to 2026 — RBI CPI data.
RBI Data - Irish Inflation Calculator
Purchasing power changes in Ireland from any year to 2026 — CSO CPI data.
New
Cost of Living — By Country
- Cost of Living Australia 2026
Compare Sydney, Melbourne, Brisbane, Perth and Adelaide living costs.
Free - UAE Cost of Living 2026
Compare monthly living expenses in Dubai and Abu Dhabi — rent, groceries, transport and utilities.
Free - Saudi Arabia Cost of Living 2026
Compare monthly living expenses in Riyadh, Jeddah and Dammam — rent, groceries, transport and utilities.
Free - Ireland Cost of Living 2026
Compare monthly living expenses in Dublin, Cork, Galway and Limerick — rent, groceries, transport and utilities.
Free - Netherlands Cost of Living 2026
Compare monthly living expenses in Amsterdam, Rotterdam and The Hague — rent, groceries, transport and utilities.
Free
🇦🇪 UAE & 🇸🇦 KSA — End of Service & Gratuity
- UAE Gratuity Calculator (EOSB) 2026
Calculate end-of-service benefit under Federal Decree-Law No. 33 of 2021 — limited & unlimited contracts, resignation & termination.
MOHRE - Saudi Arabia End of Service Calculator
Calculate gratuity under Saudi Labour Law — years of service, resignation vs termination scenarios for KSA employees.
Saudi Labour Law
Investment & Savings
- Investment Return & ROI Calculator
Calculate return on investment and compound growth over any period.
Global - Retirement Calculator
How much do you need to retire? Project savings, withdrawal rate and retirement age.
Global - Coast FIRE Calculator
Find out if your current savings will grow to a full retirement nest egg on their own, with no more contributions.
New - IRA Calculator USA
Project Traditional or Roth IRA growth and compare tax treatment at retirement.
New - Stocks & Shares ISA Calculator
Project tax-free investment growth inside a Stocks & Shares ISA over any time horizon.
New - 401(k) Retirement Calculator USA
Project 401(k) balance at retirement with employer match and contribution rates.
Free - US RMD Calculator
Calculate Required Minimum Distributions from traditional IRAs and 401(k)s — IRS age and account balance rules.
IRS - Social Security Benefits Estimator
Estimate monthly Social Security benefits at different retirement ages.
SSA Data - VA Disability Back Pay Calculator
Estimate retroactive VA disability back pay owed based on effective date and rating changes.
Veterans - Superannuation Calculator Australia
Project your super balance at retirement with employer contributions, SG rate and investment returns — FY 2025-26.
Free - Ireland Pension Calculator
Estimate Irish pension pot at retirement — employer/employee contributions, tax relief and projected fund growth.
Free - SIP Calculator India
Systematic Investment Plan returns — project monthly SIP corpus over any tenure.
Free - PPF vs ELSS Calculator India
Compare Public Provident Fund vs Equity Linked Savings Scheme for tax-saving choices.
Free - Mutual Fund Overlap Calculator
Check overlapping holdings across your mutual fund portfolio to avoid over-concentration.
Free - NPS Calculator India
Estimate National Pension System retirement corpus with Tier 1 & 2 contributions.
Free - CD Calculator USA 2026
Certificate of Deposit maturity — compare CD rates and find the best return.
Free - 529 College Savings Calculator
Project college savings growth and estimate monthly savings needed in a 529 plan.
Free - Emergency Fund Calculator USA
Calculate your 3–6 month emergency safety net target — how much and how fast.
Free - HSA vs FSA Calculator USA
Compare Health Savings Account vs Flexible Spending Account tax benefits.
Free
Property, Credit, Zakat & Other
- Stamp Duty Calculator India
Stamp duty and registration charges for property purchase across Indian states.
Free - Singapore Stamp Duty Calculator
Calculate BSD, Additional Buyer’s Stamp Duty (ABSD) and Seller’s Stamp Duty (SSD) — 2026.
Free - Ireland Stamp Duty Calculator
Calculate stamp duty on residential and commercial property purchases in Ireland — current Revenue.ie rates.
Free - Australia Stamp Duty Calculator
Estimate stamp duty (transfer duty) on a property purchase by state and territory in Australia.
New - Netherlands 30% Ruling Calculator
Calculate your 30% tax-free allowance as an expat employee in the Netherlands — eligibility and tax saving.
Expat - UAE Rent vs Buy Calculator
Should you rent or buy in Dubai or Abu Dhabi? Compare total costs over time to make the right decision.
Free - Rent vs Buy Calculator UK
Compare renting vs buying a home in the UK over time, including stamp duty and mortgage costs.
New - Rent vs Buy Calculator Australia
Compare renting vs buying a home in Australia over time, including stamp duty and mortgage costs.
New - Saudi Arabia Zakat Calculator 2026
Calculate annual Zakat obligation — 2.5% on Nisab-eligible wealth including cash, gold, investments and business assets.
ZATCA - Rental Yield Calculator India
Gross and net rental yield and ROI for investment properties in Indian cities.
Free - Credit Score Impact Calculator India
See how financial decisions affect your CIBIL credit score before making them.
Free - Credit Score Impact Calculator USA
Predict how decisions affect your FICO score before you make them.
Free - Net Worth Growth Calculator
Track and project net worth growth — assets, liabilities and savings rate.
Global - Business Profit Calculator
Gross profit, net profit, profit margin and markup for any business or product.
Global - Currency Converter
Live exchange rates for 150+ currencies — USD, EUR, GBP, INR, AUD, SGD, AED, SAR and more.
Live - Interest Rate Calculator
Calculate effective annual rate, APR, and compare fixed vs variable rates globally.
Global - General Finance Calculator
All-purpose financial calculator for compound interest, present value, future value and payments.
Global - Medical Bill Negotiation Calculator
Estimate how much you can save negotiating medical bills and what to offer insurers.
USA - Child Education Planning Calculator
Plan for your child’s future education costs with inflation-adjusted projections.
USA
Travel & Everyday
- Travel Cost Calculator
Estimate total trip cost — flights, accommodation, food, transport and activities for any destination.
Global - Fuel Cost Calculator
Calculate fuel cost for any journey — petrol, diesel or EV. Works in miles and kilometres.
Global - Car Insurance Cost Calculator
Estimate your car insurance premium based on vehicle type, age, driver profile and coverage level.
New
Creator & Monetization
- YouTube Money Calculator
Estimate monthly and annual YouTube ad revenue based on views, CPM and niche.
Creator - AdSense Revenue Calculator
Estimate Google AdSense earnings from page views, CTR and CPC for your website or blog.
Creator
Health & Fitness Calculators
BMI, calories, nutrition, sleep, pregnancy, running and workout tools. Science-based formulas for real health decisions.
Health & Fitness Calculators — Complete Hub
All 21 health and fitness tools — BMI, BMR, calories, macros, pregnancy, sleep, running pace and more.
Body & Weight
- Body Fat Percentage Calculator
Estimate body fat percentage using multiple methods — Navy, BMI, and skinfold formulas.
Free - Body Shape Calculator
Determine your body shape — apple, pear, hourglass, rectangle or inverted triangle.
Free
Calories & Nutrition
- Calorie Calculator
Daily calorie needs based on age, weight, height, gender and activity level (TDEE).
Free - Calorie Deficit Calculator
Calculate calorie deficit needed to lose weight at your target pace — safe and sustainable.
Free - Calories Burned Calculator
Calories burned in 50+ activities — walking, running, cycling, swimming and more.
Free - Macronutrient Calculator
Calculate your ideal protein, carb and fat macro ratios for any fitness goal.
Free - Caffeine Half-Life Calculator
Track caffeine metabolism and find the best cutoff time for quality sleep.
Free
Fitness & Training
- One Rep Max Calculator
Calculate your 1RM for bench press, squat, deadlift — and training percentages.
Free - Target Heart Rate Calculator
Calculate target heart rate zones for fat burn, cardio, and peak performance.
Free - Running Pace Calculator
Calculate running pace, finish time and splits for 5K, 10K, half marathon and marathon.
Free - Sleep Calculator
Calculate optimal bedtime and wake-up times based on sleep cycles for maximum rest.
Free - Health Risk Calculators
Assess cardiovascular, diabetes and lifestyle health risks based on your indicators.
Free
Women’s Health & Pregnancy
- Pregnancy Weight Gain Calculator
Healthy pregnancy weight gain by trimester based on pre-pregnancy BMI.
Free
Math Calculators
From basic arithmetic to scientific calculations, averages, unit conversions and equation solving — plus home and garden measurement tools like square footage, gravel and BTU.
Math Calculators — Complete Hub
Basic, scientific, percentage, fractions, roots, exponents, equations, differential equations, ratios, averages, units, distance, age, square footage, gravel and BTU.
Core Math & Conversions
- Scientific Calculator
Trigonometry, logarithms, powers, roots and advanced mathematical functions.
Free - Percentage Calculator
Calculate percentages, percentage change, and percentage of a number instantly.
Free - Fraction Calculator
Add, subtract, multiply and divide fractions — simplified results with steps.
Free - Square Root & Cube Root Calculator
Calculate square roots, cube roots and nth roots of any number.
Free - Exponent & Power Calculator
Calculate any base raised to any power — including negative and fractional exponents.
Free - Equation Solver Calculator
Solve linear, quadratic and polynomial equations with step-by-step solutions.
Free - Unit Converter
Convert length, weight, temperature, volume, speed and more — metric and imperial.
Free - Distance Calculator
Calculate distance between any two cities or locations worldwide in miles or kilometres.
Free - Age Calculator
Calculate exact age in years, months and days from any birth date to today or any target date.
Free
Home, Garden & Measurement
- Square Footage Calculator
Calculate area in square feet and square metres for rooms, floors and lots.
New
AI Personal Care Tools
Quiz-based AI tools for face shape, hairstyle, skin tone, eye shape, glasses, beard, skincare and fashion, plus a fun zodiac compatibility quiz. Used by 24,000+ people across 15+ languages. No photo required for most tools.
AI Personal Care Tools — Complete Hub
All AI beauty and personal care tools. Start with Face Shape Detector — it powers recommendations across all other tools.
Face & Feature Analysis — Start Here
- Face Shape Detector
Identify oval, round, square, heart or oblong face shape — start here for the most accurate recommendations.
Start Here ⭐ - Skin Tone Detector
Find your undertone — warm, cool or neutral — and get matching colour palettes for makeup and clothing.
Free - Eye Shape Detector
Identify almond, round, hooded or monolid eyes — with targeted makeup and eyewear tips.
Free - AI Face Attractiveness Test
AI analyses facial symmetry and features — constructive beauty enhancement suggestions.
Free
Hair & Style
- Hairstyle Recommender
Personalised hairstyle suggestions for men and women — includes a barber-ready script. Most popular tool.
🔥 Most Popular - AI Glasses Finder
Find perfect frames — aviator, round, rectangle, cat-eye — matched to your face shape and style.
Free - AI Fashion Enhancer
AI-powered outfit and fashion advice based on body type, style goals and occasion.
Free - AI Fashion Advice
Personalised fashion styling tips — colour coordination, occasion dressing and wardrobe planning.
Free
Skincare, Makeup & Grooming
- AI Skincare Routine
Personalised morning and evening skincare routine for your skin type — dry, oily, combination or sensitive.
Free - AI Makeup Problem Solver
Struggling with foundation, concealer or contouring? Get targeted AI fixes instantly.
Free - Beard Style Recommender
Best beard style for your face shape — stubble, full beard, goatee, Van Dyke. Includes barber script.
Barber Script
Hairstyle Style Guides
- Hairstyles for Oval Face
Top hairstyles and haircuts for oval faces — the most versatile face shape, with styling tips for men and women.
Guide - Hairstyles for Round Face
Best hairstyles and haircuts for round faces — styles that add length and definition, with tips for men and women.
Guide
Fun & Lifestyle Quizzes
Education & Productivity
CGPA conversion, grade average, ATAR, study score and Leaving Cert points, study planning, US university cost calculators, work productivity, commission, pro rata, leave entitlement and typing speed test for students and professionals.
Education & Productivity Calculators Hub
CGPA to percentage, grade average, ATAR, study score, Leaving Cert points, study time planner, university cost calculators, work productivity score, commission, pro rata, holiday entitlement and typing speed test.
Study, Grades & Productivity
- CGPA to Percentage Calculator
Convert CGPA to percentage for Indian universities, US GPA, UK grade systems and more.
Free - Grade Average Calculator
Calculate weighted and unweighted grade averages for any subject combination.
Free - Study Time Planner Calculator
Plan and schedule study time for exams — hours per subject, revision blocks and deadlines.
Free - Commission Calculator
Calculate sales commission, tiered rates and take-home earnings for any structure.
Free - Work Productivity Score Calculator
Measure and score your work productivity — track output, efficiency and task completion rate.
Free - Typing Speed Test
Measure your typing speed and accuracy in words per minute (WPM) — practise and improve with timed tests.
Free
Exam Scores & University Entry
University Cost Calculators — USA
- Chapman University Cost Calculator
Estimate tuition, fees, room and board and total cost of attendance at Chapman University.
New - Quinnipiac University Cost Calculator
Estimate tuition, fees, room and board and total cost of attendance at Quinnipiac University.
New - Drexel University Cost Calculator
Estimate tuition, fees, room and board and total cost of attendance at Drexel University.
New - Full Sail University Cost Calculator
Estimate program tuition, fees and total cost of attendance at Full Sail University.
New - Lehigh University Cost Calculator
Estimate tuition, fees, room and board and total cost of attendance at Lehigh University.
New - Howard University Cost Calculator
Estimate tuition, fees, room and board and total cost of attendance at Howard University.
New - Fordham University Cost Calculator
Estimate tuition, fees, room and board and total cost of attendance at Fordham University.
New
Work & Employment
- Annual Leave Calculator
Calculate your annual leave entitlement and accrual based on working pattern and length of service.
New - UK Holiday Entitlement Calculator
Work out your UK statutory holiday entitlement in days and hours — full-time, part-time and irregular hours.
New - Florida Minimum Wage
See the current Florida minimum wage and what it means for hourly, weekly and annual earnings.
USA
Pet Calculators
Age converters, pregnancy calculators and feeding guides for dogs, cats, horses and cows. Science-based tools for pet owners and livestock farmers.
Pet Calculators — Complete Hub
All pet calculators — dog, cat, horse and cow age, pregnancy and feeding calculators for pet owners and farmers.
Age Converters
- Dog Age Calculator
Convert dog years to human years — understand your dog’s life stage and health needs based on breed and size.
Free - Cat Age Calculator
Convert cat years to human years — track your cat’s life milestones from kitten to senior.
Free - Horse Age Calculator
Convert horse years to human equivalent age — understand equine life stages and care requirements.
Free - Cow Age Calculator
Calculate cow age in human years and understand bovine development stages for dairy or beef cattle.
Free
Pregnancy Calculators
- Cat Pregnancy Calculator
Calculate cat due date and gestation milestones from mating date — approximately 63–67 days gestation.
Free - Horse Pregnancy Calculator
Calculate horse foaling date and pregnancy milestones — approximately 340–342 days gestation.
Free - Cow Pregnancy Calculator
Calculate cow calving date and pregnancy milestones — approximately 280–283 days gestation.
Free
Feeding & Nutrition
- Cow Food Calculator
Calculate daily feed requirements for dairy or beef cattle based on weight, production stage and nutritional targets.
Free
How to Use Any Tool
Choose a Category
Browse Financial, Health, Math, AI Personal Care, Education or Pet. Use the category menu above to jump straight to what you need.
Pick Your Tool
217 tools organised by category and sub-category. Open any tool instantly — no login, no sign-up.
Enter Your Details
Each tool has clear input fields. Financial calculators auto-select the right tax year. AI tools guide you step by step.
Get Instant Results
Results appear immediately. Save, screenshot or share — no data is stored on our servers.
Why Use Sitnit
100% Private
No data stored, no tracking of inputs. Photos used in AI tools are never saved to our servers.
Mobile-First
All tools have 44px+ tap targets and work perfectly on any phone, tablet or desktop.
Official Data
Tax calculators use IRS, HMRC, ATO, IRAS, IRD, FTA, ZATCA, CRA, Revenue.ie and Belastingdienst source data — not estimates.
Always Updated
Tax rates, brackets and formulas are reviewed and updated at the start of every financial year.