Temperature Converter

Convert between Celsius, Fahrenheit, Kelvin, Rankine, Réaumur, Delisle, Newton, Rømer, Planck, and Gas Mark

0 KCryogenicFreezingBodyBoilingIncandescent

Convert

From

212

Equivalent in Kelvin:373.15 K

Precision

6 sig. figs

Quick Conversions

Real-world Reference

≈ Water boiling point (sea level)

Reference: 373.15 K

From°C

Celsius

Absolute zero: -273.15 °C

Water freezes at 0 °C, boils at 100 °C. SI derived unit, used globally in science and everyday life.

To°F

Fahrenheit

Absolute zero: -459.67 °F

Water freezes at 32 °F, boils at 212 °F. Used primarily in the United States.

All Scales

Everyday

Celsius(°C)

Water freezes at 0 °C, boils at 100 °C. SI derived unit, used globally in science and everyday life.

100

Fahrenheit(°F)

Water freezes at 32 °F, boils at 212 °F. Used primarily in the United States.

212

Scientific

Kelvin(K)

Absolute thermodynamic scale. 0 K = absolute zero. No degree symbol — intervals equal to Celsius.

373.15

Rankine(°Ra)

Absolute scale using Fahrenheit-sized degrees. Used in some US engineering fields. 0 °Ra = absolute zero.

671.67

Planck Temperature(Tₚ)

Theoretical unit where 1 Tₚ ≈ 1.42 × 10³² K — the highest meaningful temperature in physics.

2.633737e-30

Historical

Réaumur(°Ré)

Water freezes at 0 °Ré, boils at 80 °Ré. Common in 18th-century Europe; largely obsolete.

Delisle(°De)

Inverted scale: water boils at 0 °De, freezes at 150 °De. Proposed by Joseph-Nicolas Delisle in 1732.

Newton(°N)

Water freezes at 0 °N, boils at 33 °N. Proposed by Isaac Newton c. 1700; never widely adopted.

Rømer(°Rø)

Water freezes at 7.5 °Rø, boils at 60 °Rø. Proposed by Ole Christensen Rømer c. 1701; influenced Fahrenheit.

Cooking

Gas Mark(GM)

UK oven scale. Gas Mark 1 = 140 °C; each whole mark adds approx. 14 °C.

-1.857142857

Reference Points

°C → °F

Absolute zero-273.15→-459.67

Liquid helium (boiling point)-268.95→-452.11

Liquid nitrogen (boiling point)-195.79→-320.422

Dry ice (sublimation)-78.5→-109.3

0 °F (Fahrenheit's brine reference)-17.78→-0.004

Water freezing point0→32

Typical room temperature20→68

Human body temperature36.5→97.7

Water boiling point (sea level)100→212

Copper melting point1083→1981.4

Iron melting point1538→2800.4

Sun's surface temperature5504.85→9940.73

All conversions route through Kelvin as the pivot. Click any from or to badge in the table to instantly set that scale.