Unit Converter
Convert length, weight, volume, temperature, area, and more. All common units covered. Free, no signup required.
Convert Units — Fast and Free
The Unit Converter transforms measurements across all common categories: length, weight, temperature, area, volume, and speed. Whether you need kilometers to miles, kilograms to pounds, or Celsius to Fahrenheit — results appear instantly. Everything runs in your browser with no server and no delay.
Length: Kilometers, Miles, Meters, Feet
Kilometers (km) and miles (mi) are the most common conversion for international distances. 1 kilometer equals 0.6214 miles. The converter also supports meters, centimeters, millimeters, inches, feet, yards, and nautical miles. Useful for travel planning, run tracking, and international correspondence.
Weight: Kilograms, Pounds, German Zentner
1 kilogram equals 2.2046 pounds (lbs). The converter also knows traditional German units like the Zentner (50 kg in Germany, 100 kg in Austria) and the metric ton (1,000 kg). Ideal for recipes from English-speaking countries, shipping weights, and nutrition plans.
Temperature: Celsius, Fahrenheit, Kelvin
Germany uses Celsius (°C), the US uses Fahrenheit (°F). The conversion follows the formula °F = °C x 9/5 + 32. Kelvin is used in science and engineering — 0 K = -273.15 °C (absolute zero).
More Categories
- Area — Square meters (m²), square feet (ft²), are, hectare, Morgen (historical German land unit), acre
- Volume — Liters, milliliters, gallons (US/UK), fluid ounces, cubic centimeters
- Speed — km/h, mph, m/s, knots
When Do You Need a Unit Converter?
- International recipes (cups, ounces to grams, milliliters)
- Travel planning to the US or UK (miles, Fahrenheit)
- Technical documentation with inch and foot measurements
- Comparing property sizes (m² vs. ft²)
- Scientific work with SI units