Unit Converter Calculator
Convert between different units of measurement for length, weight, volume, temperature, and area with precise calculations.
About Unit Conversion
Metric vs Imperial Systems
- • Metric: Based on powers of 10, used worldwide
- • Imperial: Traditional system used in US and UK
- • SI units: International standard (meters, kilograms, etc.)
- • Conversion factors allow precise unit changes
Length Measurements
- • Millimeter (mm) = 0.001 meters
- • Centimeter (cm) = 0.01 meters
- • Kilometer (km) = 1000 meters
- • 1 inch = 2.54 centimeters exactly
Weight/Mass Units
- • Kilogram (kg) is the SI base unit for mass
- • 1 pound (lb) = 0.453592 kilograms
- • 1 ounce (oz) = 28.3495 grams
- • Metric ton = 1000 kilograms
Temperature Scales
- • Celsius (°C): Water freezes at 0°, boils at 100°
- • Fahrenheit (°F): Water freezes at 32°, boils at 212°
- • Kelvin (K): Absolute scale starting at absolute zero
- • °F = (°C × 9/5) + 32