Calculators & Converters
Everyday calculators and unit converters.
Age Calculator
Work out exact age in years, months, and days.
BMI Calculator
Calculate body mass index from height and weight.
Percentage Calculator
Solve common percentage problems fast.
GST / VAT Calculator
Add or remove tax from any amount.
EMI Calculator
Estimate monthly loan payments and total interest.
Currency Converter
Convert between world currencies with live rates.
Length Converter
Convert between metric and imperial lengths.
Weight Converter
Convert kilograms, pounds, ounces, and more.
Temperature Converter
Convert Celsius, Fahrenheit, and Kelvin.
Binary to Decimal
Convert binary numbers to decimal and back.
Tip Calculator
Split a bill and calculate tip per person.
Discount Calculator
Work out sale prices and how much you save.
Area Calculator
Calculate area of a rectangle, circle, or triangle.
Volume Calculator
Calculate volume of a box, sphere, or cylinder.
Speed Converter
Convert km/h, mph, m/s, and knots.
Time Converter
Convert seconds, minutes, hours, and days.
Data Storage Converter
Convert bytes, KB, MB, GB, and TB.
Compound Interest Calculator
Project savings growth with compound interest.
Simple Interest Calculator
Compute simple interest, total, and rate.
Date Difference Calculator
Find days, weeks, months between two dates.
Mortgage Calculator
Estimate monthly mortgage payments, interest, and totals.
Fuel Cost Calculator
Estimate trip fuel cost from distance, mileage, and price.
Running Pace Calculator
Work out running pace per km/mile from distance and time.
Calorie Calculator
Estimate daily calorie needs from your body and activity.
Roman Numeral Converter
Convert numbers to Roman numerals and back instantly.
Factorial Calculator
Compute the factorial (n!) of any non-negative integer.
Prime Number Checker
Check whether any number is prime — with the smallest factor.
GCD & LCM Calculator
Find the greatest common divisor and least common multiple.
Days Until Calculator
Count how many days until any future date from today.
Love Calculator
A fun compatibility score between two names — just for laughs.