Free online unit converters. Instantly convert length, weight, temperature, speed, and volume — no sign-up required.
Length Converter
Weight Converter
Temperature Converter
Speed Converter
Volume Converter
Frequently Asked Questions
How do I convert kilometers to miles?
Use the Length Converter above. Select Kilometers as “From” and Miles as “To”. Example: 100 km = 62.137 miles.
How do I convert Celsius to Fahrenheit?
Use the Temperature Converter. Formula: F = C × 9/5 + 32. Example: 100°C = 212°F.
How many pounds is 1 kilogram?
1 kilogram = 2.20462 pounds. Use the Weight Converter above.
How do I convert liters to gallons?
1 liter = 0.264172 US gallons. Use the Volume Converter above.
More Unit Converter Tools
Explore our individual unit converter calculators for more detailed options and explanations.