Temperature Converter
Convert Celsius, Fahrenheit, Kelvin and Rankine.
About Temperature Scales
Celsius (°C) is used by most of the world; water freezes at 0 °C and boils at 100 °C. Fahrenheit (°F) is used in the US; water freezes at 32 °F and boils at 212 °F. Kelvin (K) is the SI absolute scale used in science — 0 K is absolute zero (−273.15 °C). Rankine (°R) is the imperial absolute scale.
Conversion Formulas
- °C → °F:
(°C × 9/5) + 32 - °F → °C:
(°F − 32) × 5/9 - °C → K:
°C + 273.15 - K → °C:
K − 273.15
Key Reference Points
- Absolute zero: 0 K / −273.15 °C / −459.67 °F
- Body temperature: 37 °C / 98.6 °F
- Room temperature: ~22 °C / ~72 °F
- Boiling water: 100 °C / 212 °F / 373.15 K
- Oven (moderate): 180 °C / 356 °F