Convert length, weight, temperature, area, volume, speed, data units, number bases, percentages and fractions — accurate results instantly.
Length ConverterReal-time Results
Precise Factors
Metric & Imperial
Free Unlimited Use
UtilityAdda unit converters cover physical measurements and digital units: meters to feet, kg to lbs, Celsius to Fahrenheit, acres to hectares, MB to GB, binary to hex, and more. Also convert percentages and fractions for homework, engineering, and finance.
All conversions use standard factors and run instantly in your browser. Bookmark your most-used converters or browse physical and digital categories below.
Physical units, digital data, number systems and math helpers.
Convert meters, feet, inches, miles and more.
OpenConvert kg, lb, oz and other weight units.
OpenConvert Celsius, Fahrenheit and Kelvin.
OpenConvert square meters, acres, hectares and more.
OpenConvert liters, gallons, cubic meters and more.
OpenConvert km/h, mph, m/s and knots.
See converted values update as you type.
Standard conversion rates for science, travel, and IT.
Switch between US, UK, and SI units easily.
No ads blocking results or daily conversion limits.
Convert km/miles, kg/lbs, and liters/gallons for trips and freight.
Switch volume and weight units when following international recipes.
Convert between binary, hex, octal and decimal number bases.
Temperature, area, speed and fraction tools for homework and projects.
Choose length, weight, temperature, data, or another category.
Type the amount and select source and target units.
Copy the converted value for reports, code, or everyday use.