Convert Celsius to Fahrenheit.
Input the value of celsius below to convert instantly to fahrenheit with standard conversions, definitions, and equations.
About converting celsius to fahrenheit
Celsius to Fahrenheit is the classic weather and cooking conversion between the metric scale used by most of the world and the Fahrenheit scale used in the United States.
The formula is °F = (°C × 9/5) + 32. The ×9/5 accounts for Fahrenheit degrees being smaller (180 of them between freezing and boiling versus 100 in Celsius), and the +32 shifts the zero point, since water freezes at 0 °C but at 32 °F. So 20 °C is (20 × 1.8) + 32 = 68 °F, a comfortable room temperature.
Unlike most conversions on this site, temperature is not a simple multiplication — it has both a scale factor and an offset, because the two scales disagree on where zero sits. That offset is why you cannot just multiply, and why −40 is the single point where both scales read the same number.
- Fast approximation: double the Celsius and add 30 (20 × 2 + 30 = 70, close to the exact 68).
- Body temperature 37 °C is 98.6 °F; a 'high' fever of 40 °C is 104 °F.
How to Convert Celsius to Fahrenheit
To convert celsius to fahrenheit, we use the official conversion formulas. Below is the mathematical formula, plain-English explanation, and a worked example.
Celsius (°C)
The standard metric temperature scale, where water freezes at 0°C and boils at 100°C.
Fahrenheit (°F)
Temperature scale primarily used in the US, where water freezes at 32°F and boils at 212°F.
Celsius to Fahrenheit Conversion Table
| Celsius (°C) | Fahrenheit (°F) |
|---|---|
| 1 °C | 33.8 °F |
| 2 °C | 35.6 °F |
| 3 °C | 37.4 °F |
| 5 °C | 41 °F |
| 10 °C | 50 °F |
| 15 °C | 59 °F |
| 20 °C | 68 °F |
| 25 °C | 77 °F |
| 50 °C | 122 °F |
| 100 °C | 212 °F |
| 250 °C | 482 °F |
| 500 °C | 932 °F |
| 1000 °C | 1832 °F |
Fahrenheit to Celsius Conversion Table
| Fahrenheit (°F) | Celsius (°C) |
|---|---|
| 1 °F | -17.22222 °C |
| 2 °F | -16.66667 °C |
| 3 °F | -16.11111 °C |
| 5 °F | -15 °C |
| 10 °F | -12.22222 °C |
| 15 °F | -9.44444 °C |
| 20 °F | -6.66667 °C |
| 25 °F | -3.88889 °C |
| 50 °F | 10 °C |
| 100 °F | 37.77778 °C |
| 250 °F | 121.11111 °C |
| 500 °F | 260 °C |
| 1000 °F | 537.77778 °C |