Fahrenheit to Celsius — Convert °F to °C

Convert Fahrenheit to Celsius instantly, with a quick reference table. Free, in your browser — no sign-up.

How to

  1. 1Enter the temperature in Fahrenheit.
  2. 2Read the result in Celsius.
  3. 3Use the table for weather and body-temperature values.

How to convert Fahrenheit to Celsius

Subtract 32 from the Fahrenheit temperature, then multiply by 5/9: °C = (°F − 32) × 5/9. For example, (98.6 − 32) × 5/9 = 37 °C. You subtract first because the scales have different zero points.

Where you will use it

Fahrenheit-to-Celsius helps when US temperatures need to be metric — a weather forecast, an oven temperature from a US recipe, or a body temperature you want in Celsius.

Fahrenheit to Celsius conversion table

Quick reference for common values. 1 °F = -17.222222 °C.

Fahrenheit (°F)Celsius (°C)
0 °F-17.777778 °C
10 °F-12.222222 °C
20 °F-6.666667 °C
25 °F-3.888889 °C
30 °F-1.111111 °C
37 °F2.777778 °C
40 °F4.444444 °C
50 °F10 °C
75 °F23.888889 °C
100 °F37.777778 °C

FAQ

What is the Fahrenheit to Celsius formula?+

°C = (°F − 32) × 5/9. For example, 98.6 °F = 37 °C.

What is 100 °F in Celsius?+

100 °F ≈ 37.8 °C. Water freezes at 32 °F (0 °C) and boils at 212 °F (100 °C).

Is it free?+

Yes, completely free — no sign-up and no watermark.

Is my data private?+

Yes — this tool runs entirely in your browser. Your files and text are never uploaded.

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