104 Fahrenheit to Celsius
104 degrees Fahrenheit equals
40°C
40 degrees Celsius
104°F is 40°C, which falls inside the human body temperature range. Normal body temperature runs about 37°C (98.6°F), and anything above 38°C (100.4°F) is generally treated as a fever.
How to convert 104°F to °C
Formula
°C = (°F − 32) × 5/9
Substituting 104°F
- 104 − 32 = 72
- 72 × 5/9 = 40
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 104°F compares
| Reference point | Temperature | Difference |
|---|---|---|
| Freezing point of water | 0°C / 32°F | 40°C (72°F) warmer |
| Room temperature | 21°C / 69.8°F | 19°C (34.2°F) warmer |
| Body temperature | 37°C / 98.6°F | 3°C (5.4°F) warmer |
| Boiling point of water | 100°C / 212°F | 60°C (108°F) colder |