Free Unit Converter
Convert any unit instantly. Length, weight, temperature, speed, and more.
Length
Convert between meters, feet, inches, miles, kilometers, and more.
10 units
Weight
Convert between kilograms, pounds, ounces, grams, and tons.
9 units
Temperature
Convert between Celsius, Fahrenheit, and Kelvin.
3 units
Speed
Convert between km/h, mph, m/s, knots, and more.
6 units
Area
Convert between square meters, acres, hectares, and square feet.
9 units
Volume
Convert between liters, gallons, cups, milliliters, and fluid ounces.
9 units
Data
Convert between bytes, KB, MB, GB, TB, and bits.
8 units
Time
Convert between seconds, minutes, hours, days, weeks, months, and years.
8 units
Pressure
Convert between Pascal, bar, PSI, atm, and mmHg.
7 units
Energy
Convert between joules, calories, kilowatt-hours, BTU, and electron volts.
8 units
Why Use UnitConverter Snap?
80+ Units Supported
Convert between over 80 units across 10 categories including length, weight, temperature, speed, area, volume, data, time, pressure, and energy.
Instant Conversion
Get real-time results as you type. No waiting, no page reloads — all conversions happen instantly in your browser.
100% Free
All unit conversions are completely free with no sign-up required. Use as many conversions as you need, anytime.