−1 Fahrenheit to Celsius
-1 degree Fahrenheit = -18.333333 degrees Celsius
- What it means
- Colder than 0 °F (−17.8 °C): severe frost.
How to convert -1 degree Fahrenheit to degrees Celsius
Subtract 32 from the Fahrenheit temperature, then multiply by 5/9 (or divide by 1.8).
(°F − 32) × 5/9 → -18.333333 °C
Rounded to two decimal places, that is -18.33 °C.
−1 Fahrenheit in other units
| Unit | Value |
|---|---|
| Celsius (°C) | -18.33333333 |
| Kelvin (K) | 254.8166667 |
| Rankine (°R) | 458.67 |
Nearby values
| Fahrenheit | Celsius |
|---|---|
| −7 Fahrenheit to Celsius | -21.6667 °C |
| −6 Fahrenheit to Celsius | -21.1111 °C |
| −5 Fahrenheit to Celsius | -20.5556 °C |
| −4 Fahrenheit to Celsius | -20 °C |
| −3 Fahrenheit to Celsius | -19.4444 °C |
| −2 Fahrenheit to Celsius | -18.8889 °C |
| −1 °F | -18.3333 °C |
| 0 Fahrenheit to Celsius | -17.7778 °C |
| 1 Fahrenheit to Celsius | -17.2222 °C |
| 2 Fahrenheit to Celsius | -16.6667 °C |
| 3 Fahrenheit to Celsius | -16.1111 °C |
| 4 Fahrenheit to Celsius | -15.5556 °C |
| 5 Fahrenheit to Celsius | -15 °C |
Frequently asked questions
How many degrees Celsius is -1 degree Fahrenheit?
-1 degree Fahrenheit is -18.333333 degrees Celsius, or about -18.33 °C.
How do you convert -1 degree Fahrenheit to degrees Celsius?
Subtract 32 from the Fahrenheit temperature, then multiply by 5/9 (or divide by 1.8). Worked out: (°F − 32) × 5/9 → -18.333333 °C.
What is -18 degrees Celsius in degrees Fahrenheit?
-18 degrees Celsius is -0.4 degrees Fahrenheit.
Is −1 °F hot or cold?
Colder than 0 °F (−17.8 °C): severe frost.