Temperature Converter

Convert Celsius, Kelvin, Fahrenheit and Rankine instantly. Includes formulas, a cold / warm / hot indicator and a dynamic background.

Celsius (°C)

Kelvin (K)

Fahrenheit (°F)

Rankine (°R)

🧊 Cold

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Reference Water freezes at 0 °C / 32 °F / 273.15 K / 491.67 °R

Reference Water boils at 100 °C / 212 °F / 373.15 K / 671.67 °R

Absolute zero -273.15 °C / -459.67 °F / 0 K / 0 °R

Formulas

K = °C + 273.15

°F = (°C × 9/5) + 32

°R = (K × 9/5)

°R = °F + 459.67

Reverse formulas

°C = K - 273.15

°C = (°F - 32) × 5/9

K = °R × 5/9

°F = °R - 459.67