Fahrenheit to Celsius Converter

Convert between Fahrenheit and Celsius instantly — no signup, nothing sent to a server.

Edit either field — the other updates automatically. °C = (°F − 32) × 5/9.

Formula, conversion table & examples

Formula

°C = (°F − 32) ÷ 1.8

°F = °C × 1.8 + 32

Fahrenheit to Celsius conversion table

Fahrenheit (°F) Celsius (°C)
32 0
50 10
68 20
86 30
98.6 37
212 100

Worked examples

  • 32 °F = 32 × 0.6 − 17.7778 = 0 °C
  • 50 °F = 50 × 0.6 − 17.7778 = 10 °C
  • 100 °C back to Fahrenheit: 100 − -17.7778 ÷ 0.6 = 212 °F

How to convert Fahrenheit to Celsius

  1. 1

    Enter a value in either field

    Type a temperature into the Fahrenheit field, or the Celsius field — either direction works.

  2. 2

    Read the converted value

    The other field updates instantly as you type.

  3. 3

    Adjust as needed

    Keep editing either field to try different temperatures.

Example use cases

1

Weather forecasts

Convert a US-style forecast temperature to Celsius when travelling or reading foreign news.

2

Cooking & oven temperatures

Convert recipe oven temperatures between Fahrenheit and Celsius.

3

Fever & body temperature

Convert a thermometer reading between the two common temperature scales.

4

Science & lab work

Quickly convert experimental temperature readings between units.

Frequently asked questions

How do I convert Fahrenheit to Celsius?

Subtract 32 from the Fahrenheit value, then multiply by 5/9. For example, (68 − 32) × 5/9 = 20°C.

How do I convert Celsius to Fahrenheit?

Multiply the Celsius value by 9/5 (1.8), then add 32. For example, 20°C × 1.8 + 32 = 68°F.

What are some common reference points?

Water freezes at 32°F / 0°C and boils at 212°F / 100°C. Normal human body temperature is about 98.6°F / 37°C.

Is anything I type sent to a server?

No. Every conversion runs entirely in your browser — nothing is transmitted or logged.