Units Tools

Free online Units tools to format, validate, convert and debug Units data in your browser. No sign‑up, fast and privacy‑friendly.

Convert between length, weight, volume, area, time, temperature, speed, bytes, frequency, pressure, energy, power and more units.

Length Converter

Convert between meters, kilometers, miles, yards, feet, inches and more length units.

Weight Converter

Convert between kilograms, grams, pounds, ounces and tons.

Convert between common mass units like kilograms, grams, pounds and ounces.

Volume Converter

Convert between liters, milliliters, cubic meters, gallons, quarts and cups.

Convert between square meters, square kilometers, hectares, acres and more.

Convert between seconds, minutes, hours, days and weeks.

Temperature Converter

Convert between Celsius, Fahrenheit and Kelvin.

Speed Converter

Convert between meters/second, kilometers/hour, miles/hour and knots.

Angle Converter

Convert between degrees, radians and gradians.

Bytes Converter

Convert between bytes, kilobytes, megabytes, gigabytes and bits.

Frequency Converter

Convert between hertz, kilohertz, megahertz and gigahertz.

Energy Converter

Convert between joules, watt‑hours, kilowatt‑hours and calories.

Power Converter

Convert between watts, kilowatts, megawatts and horsepower.

Pressure Converter

Convert between pascals, kilopascals, bar, atmospheres and PSI.

Force Converter

Convert between newtons, kilonewtons and pound‑force.

Fuel Consumption Converter

Convert between L/100 km and MPG (US/UK).

Density Converter

Convert between kg/m³ and g/cm³.

Astronomical Distance Converter

Convert between meters, kilometers, astronomical units, light‑years and parsecs.

Electric Current Converter

Convert between amperes, milliamperes and kiloamperes.