1 degree Celsius = 33.8 degrees Fahrenheit
Convert degrees Celsius to degrees Fahrenheit.
Both directions on one page — swap the units and the whole thing runs backwards.
Type a value, or “5cm to in”
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The formula
°F = °C × 1.8 + 32
Worked through with a real value: 25 degrees Celsius = 77 degrees Fahrenheit.
Going the other way: °C = °F × 0.555556 − 17.7778, so 1 degree Fahrenheit = -17.2222 degrees Celsius.
What each unit is
- degree Celsius °C
- Zero at the freezing point of water and 100 at its boiling point, at standard pressure. The everyday scale almost everywhere outside the United States.
- degree Fahrenheit °F
- Water freezes at 32 and boils at 212. Used for weather and cooking in the United States and a few of its neighbours.
Where these come from
- 1 degree Celsius is 1 kelvin in size, counted from 273.15 K
- 1 degree Fahrenheit is 0.5555555555555556 kelvins in size, counted from 255.3722222222222 K
Every other number on this page is computed from those, and each category is pinned to conversions worked out by hand from the units' primary definitions before it ships.
Conversion tables
| degrees Celsius (°C) | degrees Fahrenheit (°F) |
|---|---|
| -40 | -40 |
| -30 | -22 |
| -20 | -4 |
| -10 | 14 |
| 0 | 32 |
| 5 | 41 |
| 10 | 50 |
| 15 | 59 |
| 20 | 68 |
| 25 | 77 |
| 30 | 86 |
| 35 | 95 |
| 37 | 98.6 |
| 40 | 104 |
| 100 | 212 |
| degrees Fahrenheit (°F) | degrees Celsius (°C) |
|---|---|
| -40 | -40 |
| -30 | -34.4444 |
| -20 | -28.8889 |
| -10 | -23.3333 |
| 0 | -17.7778 |
| 5 | -15 |
| 10 | -12.2222 |
| 15 | -9.44444 |
| 20 | -6.66667 |
| 25 | -3.88889 |
| 30 | -1.11111 |
| 35 | 1.66667 |
| 37 | 2.77778 |
| 40 | 4.44444 |
| 100 | 37.7778 |
Questions
What is 25 °C in °F?
25 degrees Celsius = 77 degrees Fahrenheit.
How do I convert degrees Celsius to degrees Fahrenheit?
Use °F = °C × 1.8 + 32. The two scales have different zero points as well as different degree sizes, so a single multiplication is not enough.
What is 10 °C in °F?
10 degrees Celsius = 50 degrees Fahrenheit.
What is 100 °C in °F?
100 degrees Celsius = 212 degrees Fahrenheit.
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