Fahrenheit to Celsius Converter

Fahrenheit to Celsius Converter guide

What does this converter do?

This page converts fahrenheit (°F) to celsius (°C) instantly as you type. It is one focused pair from the full Temperature converter, which handles every supported temperature unit in both directions.

How is the conversion calculated?

°C = (°F − 32) × 5 ÷ 9. Subtract 32 from the Fahrenheit value, multiply by 5, then divide by 9. The factor is fixed, so the math is deterministic and repeatable.

When °F to °C comes up

You are reading a US weather forecast, thermostat, or fever reading and think in Celsius, converting an American recipe's oven temperature to a metric oven, interpreting a US medical or veterinary temperature record, or setting up imported equipment whose manual quotes Fahrenheit. Students learning the formula and anyone comparing a US heatwave headline with home temperatures also land here.

Quick mental rule

Subtract 30 and halve: 68 °F → 38 ÷ 2 = 19 °C against the exact 20 °C. The rule is exact at 50 °F and drifts 1 °C for every 9 °F away from it — fine for weather, but about 6 °C low for a 350 °F oven, so use the full formula when cooking.

Worked example

Worked example: 98.6 °F converts to 37 °C. Change the input above to convert your own value.

Common values

The reference table lists frequently searched amounts such as 1, 10, and 100 °F. Amounts are shown rounded for readability; the live result keeps full precision.