4 Fahrenheit to Celsius
4 degrees Fahrenheit equals
-15.56°C
-15.56 degrees Celsius
4°F is -15.56°C, well below the point where water freezes. Roads ice over here, and this is where winter forecasts in northern climates spend most of the season. For reference, water freezes at 0°C, or 32°F.
How to convert 4°F to °C
Formula
°C = (°F − 32) × 5/9
Substituting 4°F
- 4 − 32 = -28
- -28 × 5/9 = -15.56
Fahrenheit places the freezing point of water at 32 rather than 0, so that offset comes off first. What remains is then scaled by 5/9, because a Celsius degree covers 1.8 times as much temperature change as a Fahrenheit degree.
How 4°F compares
| Reference point | Temperature | Difference |
|---|---|---|
| Freezing point of water | 0°C / 32°F | 15.6°C (28°F) colder |
| Room temperature | 21°C / 69.8°F | 36.6°C (65.8°F) colder |
| Body temperature | 37°C / 98.6°F | 52.6°C (94.6°F) colder |
| Boiling point of water | 100°C / 212°F | 115.6°C (208°F) colder |