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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-15 °C = 5 °F
Worked example
-15 × 9/5 = -27; -27 + 32 = 5 °F.
This is below the freezing point of water (0 °C / 32 °F).
Nearby values
| Celsius | Fahrenheit |
|---|---|
| -25 °C | -13 °F |
| -23 °C | -9.4 °F |
| -21 °C | -5.8 °F |
| -19 °C | -2.2 °F |
| -17 °C | 1.4 °F |
| -15 °C | 5 °F |
| -13 °C | 8.6 °F |
| -11 °C | 12.2 °F |
| -9 °C | 15.8 °F |
| -7 °C | 19.4 °F |
| -5 °C | 23 °F |
Related
Frequently asked questions
What is -15 °C in Fahrenheit?
5 °F.
Is -15 °C hot or cold?
This is below the freezing point of water (0 °C / 32 °F).

