Unit Converter
Convert length, weight, temperature, area, volume, speed and more — free and offline.
Length Converter
Convert meters, feet, inches, kilometers, miles, nautical miles and Chinese units.
Weight Converter
Convert kilograms, pounds, ounces, grams, stones, tons and jin.
Temperature Converter
Convert Celsius, Fahrenheit and Kelvin instantly.
Area Converter
Square meters, feet, acres, hectares, square miles and mu in one converter.
Volume Converter
Liters, gallons, quarts, cups, fluid ounces and cubic meters.
Speed Converter
Kilometers per hour, miles per hour, knots, meters per second and more.
Data Storage Converter
Convert bytes, KB/MB/GB/TB and binary KiB/MiB/GiB/TiB units accurately.
Number Base Converter
Convert numbers between binary, octal, decimal and hexadecimal, or any base 2–36.
Roman Numeral Converter
Convert numbers to Roman numerals and back — years, dates and clock faces.
Shoe Size Converter
Convert shoe sizes across EU, US, UK and CN systems for men, women and kids.
Ring Size Converter
Turn finger circumference or diameter into US, EU, CN and JP ring sizes.
Cooking Measurement Converter
Cups, tablespoons, teaspoons, grams and milliliters with ingredient densities.
Unix Timestamp Converter
Convert Unix epoch seconds or milliseconds to human dates and back, in UTC and local time.
World Clock & Meeting Planner
Live clocks for any time zone and find the best overlap hour for cross-time-zone meetings.
Color Converter
Convert colors between HEX, RGB, HSL and CMYK with one click and copy any value.
Pixel & Print Size Converter
Convert px, pt and rem, plus inches/cm to pixels at any DPI for print and web.
Gold & Precious Metal Weight Converter
Convert grams, Chinese liang and qian, Hong Kong tael, troy ounces and carats.
Clothing Size Converter
Convert clothing and shoe sizes across US, UK, EU and international size charts.