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Conversion - Fahrenheit to Celsius

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Quick reference

Going from °F to °C: subtract 32 first, then multiply by 5/9. Common rule of thumb: '(F − 30) ÷ 2' gives a quick rough estimate within ±1 °C in the everyday range.

Formula
°C = (°F − 32) × 5/9
Common values
32 °F
0 °C
68 °F
20 °C
100 °F
37.8 °C
212 °F
100 °C

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