-18.5 Celsius to Fahrenheit
-18.5 degrees Celsius equals
-1.3°F
-1.3 degrees Fahrenheit
-18.5°C is -1.3°F, 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 -18.5°C to °F
Formula
°F = °C × 9/5 + 32
Substituting -18.5°C
- -18.5 × 9/5 = -33.3
- -33.3 + 32 = -1.3
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 -18.5°C compares
| Reference point | Temperature | Difference |
|---|---|---|
| Freezing point of water | 0°C / 32°F | 18.5°C (33.3°F) colder |
| Room temperature | 21°C / 69.8°F | 39.5°C (71.1°F) colder |
| Body temperature | 37°C / 98.6°F | 55.5°C (99.9°F) colder |
| Boiling point of water | 100°C / 212°F | 118.5°C (213.3°F) colder |