Common
Temperature Converter
Celsius, Fahrenheit, Kelvin, Rankine and Réaumur, converted with exact formulas.
From
To
That is below absolute zero (−273.15 °C), which isn’t physically possible.
1 °C = 33.8 °F
Formula: °F = °C × 9/5 + 32
Decimals
1 °C in every temperature unit
Tap a row to convert to that unit.
How to convert temperature units
Celsius, Fahrenheit, Kelvin, Rankine and Réaumur, converted with exact formulas. Some of these units are linked by a formula rather than a single multiplier, so the converter shows the formula it used with each answer.
Celsius to Fahrenheit (°C to °F)
Use the formula °F = °C × 9/5 + 32. 1 Celsius = 33.8 Fahrenheit.
| °C | °F |
|---|---|
| -40 °C | -40 °F |
| -10 °C | 14 °F |
| 0 °C | 32 °F |
| 10 °C | 50 °F |
| 20 °C | 68 °F |
| 25 °C | 77 °F |
| 30 °C | 86 °F |
| 37 °C | 98.6 °F |
| 100 °C | 212 °F |
Fahrenheit to Celsius (°F to °C)
Use the formula °C = (°F − 32) × 5/9. 1 Fahrenheit = -17.22222 Celsius.
| °F | °C |
|---|---|
| -40 °F | -40 °C |
| -10 °F | -23.33333 °C |
| 0 °F | -17.77778 °C |
| 10 °F | -12.22222 °C |
| 20 °F | -6.666667 °C |
| 25 °F | -3.888889 °C |
| 30 °F | -1.111111 °C |
| 37 °F | 2.777778 °C |
| 100 °F | 37.77778 °C |
Celsius to kelvin (°C to K)
Use the formula K = °C + 273.15. 1 Celsius = 274.15 kelvin.
Kelvin to Celsius (K to °C)
Use the formula °C = K − 273.15. 1 kelvin = -272.15 Celsius.