Fahrenheit to Celsius
Convert Fahrenheit (°F) to Celsius (°C). °C = (°F − 32) × 5/9. Runs locally in your browser.
Fahrenheit to Celsius table
| Fahrenheit | Celsius |
|---|---|
| -40 °F | -40 °C |
| 0 °F | -17.777778 °C |
| 10 °F | -12.222222 °C |
| 20 °F | -6.6666667 °C |
| 25 °F | -3.8888889 °C |
| 30 °F | -1.1111111 °C |
| 37 °F | 2.7777778 °C |
| 50 °F | 10 °C |
| 100 °F | 37.777778 °C |
Where this conversion shows up
US weather forecasts, oven settings and thermostat readings need translating for the rest of the world. The awkward part is subtracting 32 before scaling — the reverse of the more familiar doubling trick, and easier to get wrong under pressure.
Worked example
A 72 °F room — standard US thermostat setting: (72 − 32) × 5/9 = 22.2 °C. A brutal 100 °F heatwave day is 37.8 °C, essentially body temperature.
Rounding and precision
Whole degrees Celsius are enough for weather. Mental shortcut: subtract 30, then halve — 72 °F → 42 → 21 °C (actual 22.2). Like its inverse, it is exact at 50 °F and drifts slowly either side.
FAQ
What is the formula to convert Fahrenheit to Celsius?
°C = (°F − 32) × 5/9. For example, 25 °F = -3.8888889 °C.
Is Fahrenheit to Celsius done in my browser?
Yes — the conversion runs locally; nothing is uploaded.
What is 350 °F in Celsius for baking?
350 °F is 176.7 °C — metric recipes write it as 180 °C. The standard oven ladder: 325 °F ≈ 160 °C, 350 °F ≈ 180 °C, 400 °F ≈ 200 °C, 425 °F ≈ 220 °C.
Why does Fahrenheit put freezing at 32°?
Fahrenheit set 0° at the coldest brine mixture he could reproduce and ~96° near body temperature; on that scale water happens to freeze at 32° and boil at 212°. The odd anchors are historical, not logical.