Where do these numbers come from?
- NISTSP 811 exact unit definitions (1 in = 25.4 mm, 1 lb = 453.59237 g)current edition
- NISTHandbook 44, weights and measurescurrent edition
- King Arthur BakingIngredient Weight Chart (kitchen tools)retrieved Oct 23, 2026
Checked Oct 23, 2026. °F = °C × 9/5 + 32, so 180 °C = 356 °F; ovens usually round this to 350 °F.
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0 °F = -17.8 °C
Worked example
0 − 32 = -32; -32 × 5/9 = -17.8 °C.
This is below the freezing point of water (0 °C / 32 °F).
Nearby values
| Fahrenheit | Celsius |
|---|---|
| -20 °F | -28.9 °C |
| -15 °F | -26.1 °C |
| -10 °F | -23.3 °C |
| -5 °F | -20.6 °C |
| 0 °F | -17.8 °C |
| 5 °F | -15 °C |
| 10 °F | -12.2 °C |
| 15 °F | -9.4 °C |
| 20 °F | -6.7 °C |
Frequently asked questions
What is 0 °F in Celsius?
-17.8 °C.