Unit converters that respect your privacy
216 free converters for length, weight, temperature, volume, area, and speed. Every calculation runs locally — no accounts, no uploads.
Browse by category
Length
Centimeters, inches, feet, miles, and more.
72 converters →
Weight
Kilograms, pounds, ounces, stones, and tons.
42 converters →
Temperature
Celsius, Fahrenheit, and Kelvin.
6 converters →
Volume
Liters, gallons, cups, milliliters, and more.
72 converters →
Area
Square meters, square feet, acres, and hectares.
12 converters →
Speed
km/h, mph, knots, and meters per second.
12 converters →
Popular converters
- Centimeter to Inch
cm → in
- Kilogram to Pound
kg → lb
- Celsius to Fahrenheit
°C → °F
- Liter to US gallon
L → gal
- Kilometer to Mile
km → mi
- Mile per hour to Kilometer per hour
mph → km/h
- Square meter to Square foot
m² → ft²
- Pound to Kilogram
lb → kg
- Inch to Centimeter
in → cm
- Fahrenheit to Celsius
°F → °C
- US gallon to Liter
gal → L
- Foot to Meter
ft → m
Guides
Conversion guides
Metric vs imperial, temperature, gallons, cooking measurements, and more.
5 articles →