Unit Converter

Temperature Converter

Convert between Celsius, Fahrenheit, Kelvin, Rankine, Réaumur and Delisle — instantly, in any direction.

Formulas: °F = °C × 9/5 + 32 · K = °C + 273.15 · °R = (°C + 273.15) × 9/5 · °Ré = °C × 4/5 · °De = (100 − °C) × 3/2

🌡 Six scales

Celsius, Fahrenheit, Kelvin, Rankine, Réaumur and Delisle.

⚡ Instant

Every result updates as you type — no button needed.

🌎 Reference table

Freezing, boiling, body temperature and more.

📊 Any direction

Pick any source and target scale, both directions.

More unit tools

Convert length, weight and volume too.

Length Converter → Weight Converter Volume Converter

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