Fahrenheit to Celsius

Weather forecasts, oven settings and fevers are quoted in Celsius in most of the world and Fahrenheit in the United States, which is why this is one of the most searched conversions there is.

This page converts Fahrenheit to Celsius; type any value and the answer updates as you type, with the formula and a table underneath.

Every Fahrenheit to Celsius conversion uses one rule: °C = (°F − 32) × 5/9.

1. Take the temperature in Fahrenheit.
2. Subtract 32, because the two scales start at different points.
3. Finish the arithmetic to get Celsius.

The two scales meet at −40°: −40 °C and −40 °F are the same temperature, which is a quick way to check any conversion.

Need the other direction? Use Temperature Converter, or the full temperature converter for other units.

Three conversions worked through in full:

• -40°F → (°F − 32) × 5/9 → -40°C
• 98.6°F → (°F − 32) × 5/9 → 37°C
• 450°F → (°F − 32) × 5/9 → 232.2°C

Everyday anchors: water freezes at 0 °C (32 °F), a warm room is 22 °C (71.6 °F), body temperature is 37 °C (98.6 °F) and water boils at 100 °C (212 °F).