Celsius to Fahrenheit
Convert Celsius (°C) to Fahrenheit (°F). °F = °C × 9/5 + 32. Runs locally in your browser.
Celsius to Fahrenheit table
| Celsius | Fahrenheit |
|---|---|
| -40 °C | -40 °F |
| 0 °C | 32 °F |
| 10 °C | 50 °F |
| 20 °C | 68 °F |
| 25 °C | 77 °F |
| 30 °C | 86 °F |
| 37 °C | 98.6 °F |
| 50 °C | 122 °F |
| 100 °C | 212 °F |
Where this conversion shows up
Weather, ovens and fevers: the three places this conversion actually gets used. A 30 °C summer day, a 180 °C baking recipe and a 38 °C fever all need translating for anyone using US forecasts, oven dials or thermometers.
Worked example
A European recipe says bake at 180 °C: 180 × 9/5 + 32 = 356 °F, which American recipes round to the familiar 350 °F. For weather: 30 °C = 86 °F, and body temperature 37 °C = 98.6 °F.
Rounding and precision
Weather needs whole degrees at most. Mental shortcut: double the Celsius and add 30 — 20 °C → 70 °F (actual 68). It is exact at 10 °C/50 °F and drifts about 1 °F per 5 °C away from there.
FAQ
What is the formula to convert Celsius to Fahrenheit?
°F = °C × 9/5 + 32. For example, 25 °C = 77 °F.
Is Celsius to Fahrenheit done in my browser?
Yes — the conversion runs locally; nothing is uploaded.
At what temperature are Celsius and Fahrenheit equal?
At −40°, the two scales cross: −40 °C = −40 °F. It is the only point where the same number means the same temperature.
What is a fever in Fahrenheit?
Normal body temperature is about 37 °C (98.6 °F); a fever is generally 38 °C (100.4 °F) or above. The 100.4 threshold on US thermometers is exactly the metric 38.