41 free tools · no sign-up
Free OnlineCalculators
Simple, fast and accurate calculators for everyday life, finance, health, education and more — all running privately in your browser.
41+Calculators
8Categories
100%Free forever
0Data collected
Age CalculatorEMI CalculatorBMI CalculatorSIP CalculatorGST CalculatorPercentage CalculatorCGPA CalculatorCurrency CalculatorJSON CalculatorTimestamp CalculatorAttendance CalculatorCompound Interest CalculatorLoan CalculatorCalorie CalculatorDiscount CalculatorAge CalculatorEMI CalculatorBMI CalculatorSIP CalculatorGST CalculatorPercentage CalculatorCGPA CalculatorCurrency CalculatorJSON CalculatorTimestamp CalculatorAttendance CalculatorCompound Interest CalculatorLoan CalculatorCalorie CalculatorDiscount Calculator
All calculators
Pick a tool, get an answer
Every calculator has its own page with worked examples, formulas and FAQs — designed to be genuinely useful, not just functional.
Everyday Calculators
Quick tools for daily life
Age CalculatorCalculate your exact age in years, months and days from your dat…Percentage CalculatorSolve every percentage problem in one place — percent of a value…Average CalculatorFind the mean, median, mode, sum, minimum and maximum of any lis…Discount CalculatorFind the final price after a discount and see exactly how much y…Tip CalculatorWork out the tip and split the bill evenly between any number of…Time CalculatorAdd or subtract time durations, or calculate the exact duration …
Finance Calculators
Plan loans, savings & taxes
EMI CalculatorWork out your monthly EMI, total interest and total payment, com…SIP CalculatorEstimate the future value of your monthly SIP investments, with …GST CalculatorAdd or remove GST at any Indian rate and see the base amount, GS…Income Tax CalculatorEstimate your Indian income tax under both the old and new regim…Mortgage CalculatorCalculate your monthly mortgage payment, total interest and amor…Loan CalculatorCalculate the monthly payment, total interest and repayment sche…Compound Interest CalculatorSee how your savings grow with compound interest, using yearly, …Simple Interest CalculatorCalculate simple interest and the total amount from principal, r…Salary CalculatorEstimate your monthly take-home pay from your annual CTC after P…Profit Margin CalculatorCalculate profit, profit margin and markup from your cost and se…
Health Calculators
Understand your body better
BMI CalculatorCalculate your Body Mass Index from your height and weight, and …BMR CalculatorFind your Basal Metabolic Rate — the calories your body burns at…Calorie CalculatorEstimate your daily calorie target for your goal, along with a s…Water Intake CalculatorFind out how much water you should drink daily based on your wei…
Education Calculators
Marks, grades & attendance
Attendance CalculatorCalculate your attendance percentage and how many classes you ne…Marks Percentage CalculatorCalculate your overall percentage from marks across any number o…CGPA CalculatorCalculate your CGPA from grade points and credits, with an appro…Grade CalculatorCalculate your weighted final grade from any mix of components a…
Date & Time
Work with dates and durations
Date CalculatorAdd or subtract days, weeks, months or years from any date to fi…Date Difference CalculatorFind the exact number of days, weeks and months between any two …Working Days CalculatorCount the working days between two dates, excluding weekends and…Business Days CalculatorAdd business days to any start date to find a deadline, automati…Countdown CalculatorCount down to any event in real time — see the exact days, hours…Time Zone ConverterConvert a time between major world time zones instantly and plan…
Math Calculators
Percentages, fractions & more
Percentage CalculatorSolve every percentage problem in one place — percent of a value…Fraction CalculatorAdd, subtract, multiply or divide two fractions and get the full…Average CalculatorFind the mean, median, mode, sum, minimum and maximum of any lis…Random Number GeneratorGenerate one or many random numbers within any range, with optio…
Conversion Tools
Convert any unit instantly
Unit ConverterConvert between units of length, weight, temperature, speed, are…Length ConverterConvert length and distance between metric and imperial units wi…Weight ConverterConvert weight and mass between metric and imperial units instan…Temperature ConverterConvert temperature between Celsius, Fahrenheit and Kelvin accur…Speed ConverterConvert speed between km/h, mph, m/s, ft/s and knots instantly.Currency ConverterConvert between major world currencies using stored indicative e…
Developer Tools
Handy utilities for coders
JSON FormatterBeautify, minify and validate JSON instantly — all processed pri…Timestamp ConverterConvert Unix timestamps to readable dates and back, in both seco…Base64 Encoder / DecoderEncode text to Base64 or decode it back — privately and instantl…Random Number GeneratorGenerate one or many random numbers within any range, with optio…
The idea
Calculators, done properly.
Most calculator sites bury a tiny tool under a wall of ads. We flipped it. Here the tool comes first — and the content actually helps.
01
Search, don't scroll
Type what you need and jump straight to the right calculator in a keystroke.
02
Answers, not ads
The tool is the hero. Results are large, clear and instant — every single time.
03
Private by default
Everything runs in your browser. Your numbers never leave your device.
04
Built to scale
A clean architecture ready to grow from 41 calculators to hundreds.
Find your calculator in seconds
From EMI and SIP to BMI and CGPA — search 41 free tools and get a clear answer instantly.
Browse all calculators