Temperature Converter
Convert between Celsius, Fahrenheit, Kelvin, and Rankine — live.
How to Use
- Type into any row — others update live.
Temperature
°C
°F
K
°R
Reference
Formulas
C → F
C × 9/5 + 32
F → C
(F − 32) × 5/9
C → K
C + 273.15
F → R
F + 459.67
Water freeze
0 °C = 32 °F
Water boil
100 °C = 212 °F
Frequently Asked Questions
Absolute zero?
0 K = -273.15 °C = -459.67 °F = 0 °R.
Common Use Cases
Baking
Oven C/F swap.
Science
Thermal calcs.
Last updated: