-39 Celsius to Fahrenheit
-39 degrees Celsius equals
-38.2°F
-38.2 degrees Fahrenheit
-39°C is -38.2°F — deep-freeze territory, colder than a household freezer and cold enough to risk frostbite on exposed skin within minutes. -40°C is the single point where both scales agree, reading -40°F as well.
How to convert -39°C to °F
Formula
°F = °C × 9/5 + 32
Substituting -39°C
- -39 × 9/5 = -70.2
- -70.2 + 32 = -38.2
The two scales differ in both their zero point and their step size. A Fahrenheit degree is 5/9 the size of a Celsius degree, and the scales are offset by 32 degrees at the freezing point of water — which is why the conversion needs both a multiplication and an addition.
How -39°C compares
| Reference point | Temperature | Difference |
|---|---|---|
| Freezing point of water | 0°C / 32°F | 39°C (70.2°F) colder |
| Room temperature | 21°C / 69.8°F | 60°C (108°F) colder |
| Body temperature | 37°C / 98.6°F | 76°C (136.8°F) colder |
| Boiling point of water | 100°C / 212°F | 139°C (250.2°F) colder |