Celsius to Fahrenheit
20 °C equals 68 °F. Formula: °F = °C × 9/5 + 32.
= 68 °F
Other direction: Fahrenheit to Celsius
Formula
°F = °C × 9/5 + 32
Example: 20 °C = 68 °F.
When you need Celsius to Fahrenheit
Weather forecasts, oven settings in European recipes, and fevers are the everyday cases. Room temperature of 20 °C is 68 °F; a 180 °C baking temperature is 356 °F (most US recipes would say 350 °F); a 38 °C fever is 100.4 °F.
Unlike length and weight conversions, temperature is not a simple multiplication — the scales have different zero points, so you multiply by 9/5 and then add 32. A quirky consequence: −40° is the same in both scales.
Common °C to °F values
| Degrees Celsius (°C) | Degrees Fahrenheit (°F) |
|---|---|
| -40 | -40 |
| -18 | -0.4 |
| 0 | 32 |
| 10 | 50 |
| 20 | 68 |
| 25 | 77 |
| 30 | 86 |
| 37 | 98.6 |
| 38 | 100.4 |
| 100 | 212 |
| 180 | 356 |
| 200 | 392 |
FAQ
What is 37 °C in Fahrenheit?
37 °C is 98.6 °F — normal human body temperature. A fever of 38 °C is 100.4 °F.
At what temperature are Celsius and Fahrenheit equal?
At −40 degrees. Plug −40 into the formula: −40 × 9/5 + 32 = −72 + 32 = −40 °F.