Unit Converter
Length, weight, temperature, area, volume, speed, pressure, energy, power, fuel economy, data storage, and cooking
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All conversions
Formula
Temperature conversions use formulas (not ratios): °C to °F: (C × 9/5) + 32 °F to °C: (F − 32) × 5/9 All other units: multiply by a fixed conversion factor
- conversion factor (–) — Ratio between two units in the same dimension
Example: 1 mile = 1.60934 km → 5 miles = 5 × 1.60934 = 8.047 km
Frequently Asked Questions
How is temperature converted?
°C to °F: multiply by 9/5 then add 32. °F to °C: subtract 32 then multiply by 5/9. Kelvin = °C + 273.15.
How is fuel economy converted?
km/L and L/100km are inversely related: L/100km = 100 ÷ km/L. MPG (US) = km/L × 2.352.