All your tools
in one place

Trigonometric functions, logarithms, powers and calculation history

Calculate your monthly payments, interest and loan amortization

Quickly calculate the ideal tip and split the bill between friends

Estimate your annual carbon footprint and discover how to reduce it

Calculate your body mass index and ideal weight in metric or imperial

Calculate sale prices, savings, margins and reverse-calculate original prices

Convert km, meters, inches, yards, miles, feet and light-years

Convert pounds, kg, liters, gallons, cups and more

Binary, hexadecimal, octal, decimal and file size conversions

Convert between 24 world currencies with real-time exchange rates

Convert between Celsius, Fahrenheit, Kelvin, Rankine and 4 more units

Convert m², hectares, acres, square feet and real estate references

Exact time in all cities worldwide with real-time time zone offset

How many days until summer, winter, spring or autumn?

Calculate your exact age and the age difference between two birth dates

Generate ultra-secure customizable passwords in one click

Count words, characters, sentences and estimate reading time

Transform your text to UPPERCASE, lowercase, CamelCase, snake_case...

Create QR codes for URLs, text, email or phone in seconds

Measure your typing speed in words per minute (WPM) and accuracy

Convert HEX, RGB, HSL, HSB and analyze WCAG accessibility contrast