Celsius to Fahrenheit Converter

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

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

Formula, conversion table & examples

Formula

°F = °C × 1.8 + 32

°C = (°F − 32) ÷ 1.8

Celsius to Fahrenheit conversion table

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

Worked examples

  • 0 °C = 0 × 1.8 + 32 = 32 °F
  • 10 °C = 10 × 1.8 + 32 = 50 °F
  • 212 °F back to Celsius: 212 − 32 ÷ 1.8 = 100 °C

How to convert Celsius to Fahrenheit

  1. 1

    Enter a value in either field

    Type a temperature into the Celsius field, or the Fahrenheit 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 forecast temperature to the scale you're used to when travelling or reading foreign news.

2

Cooking & oven temperatures

Convert recipe oven temperatures between Celsius and Fahrenheit.

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 Celsius to Fahrenheit?

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

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.

What are some common reference points?

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

Is anything I type sent to a server?

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