zUnits — Free online unit converters
zUnits is a set of fast, free unit converters. Choose a category below, then pick the two units you want to convert between.
- Length Converter Convert between kilometers, meters, centimeters, millimeters, inches, feet, yards, miles, and nautical miles.
- Weight Converter Convert between tonnes, kilograms, grams, milligrams, pounds, and ounces.
- Temperature Converter Convert between Celsius, Fahrenheit, and Kelvin.
- Volume Converter Convert between liters, milliliters, gallons, cubic meters, cubic centimeters, and cubic kilometers.
- Area Converter Convert between square kilometers, square meters, square miles, square yards, square feet, square inches, hectares, and acres.