Fahrenheit to Celsius Converter

Translate a Fahrenheit reading into Celsius for a weather forecast, a thermometer value or another temperature comparison.

How to use Fahrenheit to Celsius Converter

1. Enter Fahrenheit. 2. Ordinary temperature conversion on the stated Celsius/Fahrenheit/Kelvin basis, subject to its supported lower bound and output range. 3. Select Convert or press Enter from a single-line field. In multiline text fields, Enter inserts a line break. 4. Select Copy result to copy the answer, or Reset to clear the form and result.

Why use this tool?

Use Fahrenheit to Celsius Converter when you need celsius. Ordinary temperature conversion on the stated Celsius/Fahrenheit/Kelvin basis, subject to its supported lower bound and output range.

How the calculation works

Celsius = (Fahrenheit − 32) × 5/9. Subtracting 32 corrects the scales’ different zero points; multiplying by 5/9 corrects their different step sizes. Ordinary temperature conversion on the stated Celsius/Fahrenheit/Kelvin basis, subject to its supported lower bound and output range.

Example

Worked example: Fahrenheit = 68. Result: 20 °C.

Practical tip

For a temperature rise or fall, multiply the Fahrenheit difference by 5/9 without subtracting 32. This tool converts an actual reading.