Unit Converter

Convert between different units of measurement instantly

Length
Weight
Temperature
Volume
Area
Energy
Unit Converter
Convert between different units of measurement
Common Conversion Examples
Quick reference for frequently used conversions
Length
Track and field distance
100 meters
=
328.08 feet
Weight
Body weight conversion
70 kilograms
=
154.32 pounds
Temperature
Weather temperature
25°C
=
77°F
Volume
Beverage container size
2 liters
=
0.53 gallons
Quick Reference Guide
Common conversion factors for quick calculations

Length Conversions

1 meter = 3.281 feet
1 kilometer = 0.621 miles
1 inch = 2.54 centimeters
1 yard = 0.914 meters

Weight Conversions

1 kilogram = 2.205 pounds
1 pound = 16 ounces
1 ounce = 28.35 grams
1 ton = 1000 kilograms

Temperature Conversions

0°C = 32°F = 273.15K
100°C = 212°F = 373.15K
°F = (°C × 9/5) + 32
°C = (°F - 32) × 5/9

Volume Conversions

1 liter = 0.264 gallons (US)
1 gallon = 3.785 liters
1 cup = 240 milliliters
1 pint = 473 milliliters
Conversion Categories

Length & Distance

Convert meters, feet, inches, kilometers, miles, and more

Weight & Mass

Convert kilograms, pounds, ounces, grams, and tons

Temperature

Convert Celsius, Fahrenheit, Kelvin, and Rankine

Energy & Power

Convert joules, calories, watts, and BTU

Common Use Cases
  • Converting recipe measurements for cooking
  • Planning international travel (km to miles)
  • Converting body weight between metric and imperial
  • Academic and scientific calculations
  • Construction and engineering projects
  • Converting room dimensions for home improvement
  • Sports and fitness tracking
  • Shopping and comparing product specifications
Conversion Tips

Metric vs Imperial

Most of the world uses metric (meters, kilograms), while the US primarily uses imperial (feet, pounds).

Precision

Results are rounded to 6 decimal places for practical use. For scientific calculations, consider more precise tools.

Temperature

Remember that temperature conversions are not linear - they require specific formulas, not just multiplication.

Understanding Unit Conversions

Measurement Systems

The metric system (SI) is based on powers of 10 and is used globally for science and most countries for daily life. The imperial system is primarily used in the United States and a few other countries.

Converting between systems requires specific conversion factors. For example, 1 meter equals exactly 3.28084 feet, and 1 kilogram equals exactly 2.20462 pounds.

Accuracy and Rounding

Our converter provides results with high precision, but for everyday use, rounding to 2-3 decimal places is usually sufficient. Scientific applications may require higher precision.

Temperature conversions use exact formulas: °F = (°C × 9/5) + 32, and volume conversions account for differences between US and Imperial gallons.