Convert -30 °F to °C

-30 °F equals -34.4444 °C. See the formula, quick conversion table, and a clear explanation below.

Result
-30 °F=-34.4444 °C

Computed using °C = (°F − 32) × 5/9

Quick answer

-30 °F equals -34.4444 °C.

-17.2222
Result: -17.2222 °C

Formula

Formula°F°C
°C = (°F − 32) × 5/9

Quick conversion table

Common values from °F to °C at a glance.

°F°C
1 °F-17.2222 °C
2 °F-16.6667 °C
5 °F-15 °C
10 °F-12.2222 °C
20 °F-6.6667 °C
50 °F10 °C
100 °F37.7778 °C
250 °F121.1111 °C
500 °F260 °C
1000 °F537.7778 °C

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How it works

Subtract 32 from the Fahrenheit value, then multiply by 5/9 to get the equivalent in Celsius.

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Last updated: 2026