Temperature Converter

Popular Temperature Conversions

Complete List of Temperature Units

All available temperature units for conversion:

Temperature Scale Conversions

Temperature conversion involves different scales with offset relationships. Our converter handles Celsius, Fahrenheit, Kelvin, Rankine, and historical scales accurately.

Common Scales

Celsius (°C): Water freezes at 0°C, boils at 100°C. Fahrenheit (°F): Water freezes at 32°F, boils at 212°F. Kelvin (K): Absolute scale starting at absolute zero.

Conversion Formulas

Temperature uses offset formulas, not simple multiplication: °F = (°C × 9/5) + 32, °C = (°F - 32) × 5/9, K = °C + 273.15.

Historical Scales

Réaumur, Newton, Delisle, and Rømer scales were used historically. Our converter includes these for scientific and historical research.

Absolute Zero

The lowest possible temperature: -273.15°C, -459.67°F, or 0K. At this point, molecular motion theoretically stops completely.

Common Applications

Weather forecasting, cooking and baking, scientific research, medical applications, industrial processes, and HVAC systems.

Conversion Tips

Body temperature: ~37°C or 98.6°F. Room temperature: ~20°C or 68°F. For quick estimates: °C to °F multiply by 2 and add 30.