Unit Converter
Convert between different units of measurement instantly
Metric vs Imperial Systems
The metric system (meters, liters, grams) is used by most countries worldwide and is based on powers of 10, making conversions straightforward. The imperial system (feet, gallons, pounds) is primarily used in the United States and has more complex conversion factors.
Temperature Scales
Celsius is based on water's freezing (0°C) and boiling (100°C) points. Fahrenheit uses 32°F for freezing and 212°F for boiling. Kelvin is the scientific standard, starting at absolute zero (-273.15°C). Unlike other conversions, temperature requires different formulas, not just multiplication.
Precision and Rounding
Conversions often result in decimals. For practical purposes, rounding to 2-3 decimal places is usually sufficient. In scientific or engineering contexts, more precision may be needed. This calculator shows up to 6 decimal places for accuracy.
Common Use Cases
Unit conversions are essential for cooking (recipes from different countries), travel (understanding distances and temperatures), science and engineering (standard units), construction (mixing measurement systems), and online shopping (comparing products listed in different units).