degrees Celsius to degrees Fahrenheit converter
1 °C = 33.8 °F. Type a value in either box — the other side updates instantly, using the exact definition factor, not a rounded shortcut. Weather forecasts, ovens and body temperature cross this pair constantly. The two scales meet at exactly −40.
Rate: 1 °C = 33.8 °F · 1 °F = -17.2222222222 °C
Formula and a worked example
Fahrenheit = Celsius × 9/5 + 32. Worked example: 20 °C × 9/5 = 36, plus 32 gives 68 °F.
Where the factor comes from: The Celsius and Fahrenheit scales cross at exactly −40: −40 °C = −40 °F. Factors on UnitPairs follow the NIST definitions, so results agree between pages to the last digit shown.
degrees Celsius to degrees Fahrenheit chart
| 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 |
| 50 | 122 |
| 100 | 212 |
Questions
How many degrees Fahrenheit are in one degrees Celsiu?
Exactly 33.8 °F — that is the rate this converter applies in both directions.
How do I convert °C to °F by hand?
Multiply the Celsius value by 9, divide by 5, then add 32. The worked example above walks through 20 °C step by step.
Where are Celsius and Fahrenheit the same?
At −40. It is the only point where the two scales agree: −40 °C = −40 °F, which you can check in the converter above.
How accurate is this converter?
The factors are the exact international definitions, so the only rounding is in the display — results are shown to six decimal places, and the underlying value is never pre-rounded.
Related conversions
- degrees Fahrenheit to degrees Celsius — the reverse of this page
- degrees Fahrenheit to degrees Celsius
- Height converter — centimetres to feet and inches
- Full conversion chart — every pair on one page