Fahrenheit to Celsius · Value
30 °F to Celsius.
30 °F = −1.11 °C.
°F
=
°C
What 30 °F means
- 30 °F is 2 °F below the freezing point of water (0 °C, 32 °F).
- 30 °F is 68.6 °F below the generally accepted average normal body temperature (37 °C, 98.6 °F).
- 30 °F is 182 °F below the boiling point of water at sea level, rounded to 100 °C (212 °F).
- In wind, 30 °F feels colder. Use the wind chill calculator to see how cold.
How to convert
- Subtract 32: 30 − 32 = −2.
- Multiply by 5/9: −2 × 5/9 = −1.11 °C.
To convert the other way, use the Celsius to Fahrenheit converter.
Nearby values
| Fahrenheit | Celsius |
|---|---|
| 25 °F | −3.89 °C |
| 26 °F | −3.33 °C |
| 27 °F | −2.78 °C |
| 28 °F | −2.22 °C |
| 29 °F | −1.67 °C |
| 30 °F | −1.11 °C |
| 31 °F | −0.56 °C |
| 32 °F | 0 °C |
| 33 °F | 0.56 °C |
| 34 °F | 1.11 °C |
| 35 °F | 1.67 °C |
Questions people ask
What is 30 °F in °C?
30 °F is −1.11 °C.
Is 30 °F above body temperature?
No. It is 68.6 °F below it. The generally accepted average normal body temperature is 37 °C (98.6 °F).
How do I estimate 30 °F in °C in my head?
Take away 30 and halve. That gives 0 °C. The exact value is −1.11 °C, so the error is 1.1 °C.
Sources: °F = °C × 9/5 + 32, exact (NIST SP 811); body temperature: MedlinePlus (NIH): Body temperature norms.
Sources & verification
Unit definitions used by this converter:
- Temperature scales: T/K = t/°C + 273.15; t/°C = (t/°F − 32)/1.8; T/K = (t/°F + 459.67)/1.8; °R = K × 9/5, exact — NIST SP 811, Appendix B.8
Other Fahrenheit to Celsius values
10 °F · 15 °F · 16 °F · 18 °F · 19 °F · 20 °F · 22 °F · 23 °F · 24 °F · 25 °F · 27 °F · 28 °F · 29 °F · 32 °F · 33 °F · 36 °F · 38 °F · 40 °F · 42 °F · 45 °F · 70 °F · 80 °F · 98.6 °F · 100 °F · 160 °F · 170 °F · 180 °F · 190 °F · 200 °F · 220 °F · 350 °F · 400 °F