217 Free Tools · No Login · Updated 2026

Free Calculators & AI Tools for Every Decision.

Finance, health, math, education, AI personal care and pets — 217 accurate, free tools built for users across India, USA, UK, UAE, Ireland, Netherlands, Saudi Arabia, Switzerland, Finland, Norway and beyond. Instant results. Zero sign-ups.

217 Free Tools
16+ Countries
35k+ Users Served
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217
Calculators
6
Categories
16+
Countries
100%
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What We Offer
6 Categories.
Every Tool You Need.
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148 tools
Financial
Tax, mortgage, loans, inflation, investment and cost of living tools for 16+ countries.
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🏃
21 tools
Health & Fitness
BMI, BMR, calories, macros, pregnancy, sleep, water intake and running pace calculators.
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✨
14 tools
AI Personal Care
Face shape, hairstyle, skin tone, eye shape, glasses, beard and skincare AI tools.
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🔢
16 tools
Math
Basic, scientific, percentage, fractions, averages, equations, ratios, age, distance, unit converters, square footage, gravel and BTU.
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🎓
20 tools
Education
CGPA converter, grade average, ATAR, study score, Leaving Cert points, study planner, university cost, pro rata and commission calculators.
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🐾
8 tools
Pet Calculators
Dog, cat, horse and cow age converters, pregnancy calculators and feeding guides for pet owners.
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💰 Most Used
Popular Financial
Calculators
Tax, mortgage, loans and investment tools for India, USA, UK, UAE, Germany and more.
All Financial →
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Loan Calculator
Monthly payments, interest and amortisation for any loan. Any currency.
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EMI Calculator India
Exact EMI for home, car and personal loans instantly.
🔥 Hot
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Income Tax Calculator India
New & old regime comparison — FY 2025-26 with all deductions.
Free
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SIP Calculator India
Project your mutual fund returns with monthly SIP investments.
🔥 Hot
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Federal Income Tax USA
IRS 2025-26 brackets, standard deduction — estimate your liability.
IRS Data
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Paycheck Calculator USA
Net take-home pay after federal, state and FICA taxes.
Free
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Mortgage Calculator USA
Monthly payment, total interest and amortisation for US home loans.
Free
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UK Income Tax Calculator
HMRC bands, National Insurance, personal allowance — 2025-26.
HMRC Data
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Einkommensteuerrechner DE
All 6 Steuerklassen, solidarity surcharge — §32a EStG formula.
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UAE Salary Calculator
0% income tax for expats, 5% GPSSA for UAE nationals — net pay in AED.
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Currency Converter
Convert between 150+ currencies with live exchange rate reference.
Free
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Retirement Calculator
How much do you need to retire? Project savings and withdrawal rate.
Free
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ROI Calculator
Measure return on investment and compare investment performance.
Free
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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.
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Company Car Tax Calculator UK
Estimate the Benefit-in-Kind tax on a company car and what it costs you each month.
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Corporation Tax Calculator
Estimate corporation tax due on company profits and the profit left after tax.
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Land Registry Fee Calculator
Estimate HM Land Registry fees for a property purchase or transfer in England and Wales.
New
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Novated Lease Calculator
Estimate novated lease payments and the tax savings for Australian employees.
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Netherlands Mortgage Calculator
Estimate monthly payments, total interest and repayment costs for a Dutch home loan.
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House Insurance Calculator NZ
Estimate house insurance cost and cover for a New Zealand home.
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CPM Calculator
Calculate CPM, total ad cost or impressions for any ad campaign.
New
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🌍 Country-Specific
Locally Accurate Tools
for Your Country
Every calculator uses official government data — IRS, HMRC, ATO, IRD, IRAS, FTA and more.
All Countries →
🇮🇳India — 15 Tools
Income Tax Calculator India
Home Loan EMI & SIP Calculator
GST, NPS, FD & PPF Calculator
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🇺🇸USA — 34 Tools
Federal Income Tax & Paycheck
Mortgage, 401(k) & IRA Calculator
DTI, Coast FIRE & VA Back Pay
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🇦🇪UAE — 8 Tools
UAE Salary Calculator
UAE Gratuity & Car Loan
UAE Mortgage, VAT & Rent vs Buy
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🇬🇧UK — 16 Tools
UK Income Tax Calculator
NHS Pay, Take-Home Pay & Mortgage
Student Loan & Debt Repayment
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🇮🇪Ireland — 8 Tools
Ireland Income Tax Calculator
Ireland Mortgage Calculator
Stamp Duty & Pension Calculator
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🇳🇱Netherlands — 5 Tools
Netherlands Salary Calculator
30% Ruling Calculator
Take-Home Pay, Mortgage & Cost of Living
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🇩🇪Germany — 3 Tools
Einkommensteuerrechner
German Mortgage Calculator
Cost of Living Germany
View German Tools →
🇸🇦Saudi Arabia — 4 Tools
Saudi Arabia Salary Calculator
End of Service Calculator
Zakat & Cost of Living
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🇦🇺Australia — 10 Tools
ATO Tax Calculator 2025-26
Superannuation & HECS Calculator
Mortgage, Salary After Tax & Novated Lease
View Australia Tools →
🇨🇦Canada — 8 Tools
Canada Income Tax 2025-26
Canadian Mortgage Calculator
Land Transfer Tax & Student Loan
View Canada Tools →
🇸🇬Singapore — 4 Tools
Singapore Income Tax 2026
CPF Calculator 2026
Salary After Tax & Stamp Duty
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🇳🇿New Zealand — 3 Tools
NZ PAYE Calculator 2025-26
NZ Mortgage Repayment Calculator
House Insurance Calculator NZ
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🇨🇭Switzerland — 2 Tools
Switzerland Salary Calculator
Swiss Mortgage Calculator
AHV/IV/EO social insurance
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🇫🇮Finland — 1 Tool
Finland Tax Calculator
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🇳🇴Norway — 1 Tool
Norway Tax Calculator
Try Norway Calculator →
🌍Global — 16 Tools
Loan & Currency Converter
YouTube Money & AdSense Revenue
Retirement, ROI & Debt Payoff
View Global Tools →
🔢 Math & Education
Math Calculators &
Education Tools
➕
Basic Calculator
Add, subtract, multiply, divide — fast and clean.
Free
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Scientific Calculator
Trigonometry, logarithms, powers, roots and advanced functions.
Free
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Percentage Calculator
Percentage of a number, change and increase/decrease instantly.
Free
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Fraction Calculator
Add, subtract, multiply and divide fractions with full steps shown.
Free
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Unit Converter
Length, weight, temperature, volume — metric and imperial.
Free
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Distance Calculator
Calculate distance between two points or coordinates instantly.
Free
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Average Calculator
Find the mean, median, mode and range of any set of numbers.
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Square Footage Calculator
Calculate area in square feet and square metres for rooms, floors and lots.
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Gravel Calculator
Work out how much gravel you need for driveways, paths and garden beds.
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BTU Calculator UK
Estimate the BTU output needed to heat a room or home in the UK.
New
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CGPA to Percentage
Convert CGPA for Indian universities, US GPA, UK grade systems.
Free
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Grade Average Calculator
Weighted and unweighted grade averages for any subject combination.
Free
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Study Time Planner
Plan your study schedule and track hours needed for each subject.
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Work Productivity Score
Measure and improve your daily work output and focus efficiency.
Free
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ATAR Calculator VCE
Estimate your ATAR from your VCE results.
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Study Score Calculator
Estimate your study score and see how it feeds into your ATAR.
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Points Calculator Ireland
Calculate your Leaving Cert CAO points from your subjects and grades.
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Pro Rata Calculator
Convert full-time pay, hours or leave to a part-time equivalent.
New
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35k+
Users Served
217
Free Tools
15+
Languages via AI
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Why Sitnit
Built to be Trusted
🏛️
Official Data Sources
Every tax and financial calculator uses government-verified data — IRS, HMRC, ATO, IRAS, FTA and RBI. Not estimates or approximations.
🔒
100% Private
No data is stored, no accounts required. Your inputs stay on your device — we never see your financial or health data.
📱
Mobile-First
Every tool has 44px+ tap targets and works instantly on any phone, tablet or desktop. No app download ever needed.
⚡
Always Free & Updated
All 217 tools are permanently free. Tax rates and formulas are reviewed and updated at the start of every financial year.
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