−40 Fahrenheit to Celsius
-40 degrees Fahrenheit = -40 degrees Celsius
- What it means
- Colder than 0 °F (−17.8 °C): severe frost.
How to convert -40 degrees Fahrenheit to degrees Celsius
Subtract 32 from the Fahrenheit temperature, then multiply by 5/9 (or divide by 1.8).
(°F − 32) × 5/9 → -40 °C
Rounded to two decimal places, that is -40 °C.
−40 Fahrenheit in other units
| Unit | Value |
|---|---|
| Celsius (°C) | -40 |
| Kelvin (K) | 233.15 |
| Rankine (°R) | 419.67 |
Nearby values
| Fahrenheit | Celsius |
|---|---|
| −40 °F | -40 °C |
| −39 Fahrenheit to Celsius | -39.4444 °C |
| −38 Fahrenheit to Celsius | -38.8889 °C |
| −37 Fahrenheit to Celsius | -38.3333 °C |
| −36 Fahrenheit to Celsius | -37.7778 °C |
| −35 Fahrenheit to Celsius | -37.2222 °C |
| −34 Fahrenheit to Celsius | -36.6667 °C |
Frequently asked questions
How many degrees Celsius is -40 degrees Fahrenheit?
-40 degrees Fahrenheit is -40 degrees Celsius, or about -40 °C.
How do you convert -40 degrees 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 → -40 °C.
What is -40 degrees Celsius in degrees Fahrenheit?
-40 degrees Celsius is -40 degrees Fahrenheit.
Is −40 °F hot or cold?
Colder than 0 °F (−17.8 °C): severe frost.