-30 °F = -34.4 °C
-30 degrees Fahrenheit is -34.444444 degrees Celsius, to six decimal places.
- Precise
- -34.444444 °C
- Rounded
- -34.4 °C
- Formula
- (-30 − 32) × 5/9
Convert any other temperature
Type in either box; the other follows, and the scale moves with it. Works for decimals and, for temperatures, numbers below zero.
Around -30 °F
Fahrenheit to Celsius for the whole numbers either side of -30, rounded to one decimal place. Each row opens its own page.
| Degrees Fahrenheit | Degrees Celsius |
|---|---|
| -35 °F | -37.2 °C |
| -34 °F | -36.7 °C |
| -33 °F | -36.1 °C |
| -32 °F | -35.6 °C |
| -31 °F | -35 °C |
| -30 °F | -34.4 °C |
| -29 °F | -33.9 °C |
| -28 °F | -33.3 °C |
| -27 °F | -32.8 °C |
| -26 °F | -32.2 °C |
| -25 °F | -31.7 °C |
How to convert Fahrenheit to Celsius
The formula
°C = (°F − 32) × 5/9. The two scales start from different zero points, so there is a subtraction as well as a multiplication.
Worked through for -30
Subtract 32: -30 − 32 = -62. Multiply by 5/9: -62 × 5 ÷ 9 = -34.444444. Rounded, that is -34.4 °C.
In your head
Take away 30 and halve it: 70 °F → 40 ÷ 2 = 20 °C (close enough for weather).
Questions
What is -30 °F in Celsius?
-30 degrees Fahrenheit is -34.444444 degrees Celsius to six decimal places, or -34.4 °C rounded to one decimal place.
How do you convert degrees Fahrenheit to degrees Celsius?
Use (-30 − 32) × 5/9, which gives -34.444444. For a quick estimate: Take away 30 and halve it: 70 °F → 40 ÷ 2 = 20 °C (close enough for weather).
Is -30 °F hot or cold?
-30 °F is -34.4 °C: bitterly cold, below the temperature of a home freezer.
What is -30 °C in Fahrenheit?
Going the other way, -30 °C is -22 °F. The reverse conversion has its own page and converter.
Is the answer exact?
The exact answer has endless decimals, so it is shown to six places (-34.444444). The rounded figure, -34.4, is accurate enough for weather, cooking and thermometers.