Fahrenheit to Celsius formula
°C = (°F − 32) × 5 ÷ 9A fever of 100.4 °F is 38 °C; 70 °F room temperature is 21.1 °C; 350 °F oven is 177 °C. Quick estimate: subtract 30 and halve.
| °F | °C |
|---|---|
| 32 | 0 |
| 50 | 10 |
| 68 | 20 |
| 86 | 30 |
| 98.6 | 37 |
| 100.4 | 38 |
| 104 | 40 |
| 212 | 100 |
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A fever of 100.4 °F is 38 °C; 70 °F room temperature is 21.1 °C; 350 °F oven is 177 °C. Quick estimate: subtract 30 and halve.
| °F | °C |
|---|---|
| 32 | 0 |
| 50 | 10 |
| 68 | 20 |
| 86 | 30 |
| 98.6 | 37 |
| 100.4 | 38 |
| 104 | 40 |
| 212 | 100 |
37.8 °C.
99 °F is 37.2 °C — slightly above average but usually not a fever; 100.4 °F (38 °C) is the common fever threshold.
About 177 °C — a common oven setting.