How to convert degrees Celsius to degrees Fahrenheit
Formula: °F = °C × 9/5 + 32. Worked example: 20 °C = 68 °F. Quick estimate: double the Celsius value and add 30 (20 °C → 70 °F, exact 68 °F). It is close between about 0 and 30 °C.
About these units
The Celsius and Fahrenheit scales meet only at −40°. Water freezes at 0 °C = 32 °F and boils at 100 °C = 212 °F, so one Fahrenheit degree is 1/1.8 of a Celsius degree. Fahrenheit is used in the US for weather, body temperature and oven settings (350 °F ≈ 177 °C).
Category: temperature. Results on this page are calculated in your browser and rounded to 7 significant digits; the table above uses 6. For other units of temperature open the full unit converter, or use the reverse page — degrees fahrenheit to degrees celsius.