---
title: "Degrees Fahrenheit to Degrees Celsius — °F to °C converter"
description: "1 degree Fahrenheit = -17.22222 degrees Celsius. Conversion table, the exact formula, and a calculator for any value."
url: https://atoneplace.net/convert/fahrenheit-to-celsius/
site: "At One Place"
---

# Degrees Fahrenheit to degrees Celsius

**1 degree Fahrenheit in degrees Celsius: 1 °F = -17.22222 °C**

°C = (°F − 32) × 5/9

To convert degrees Fahrenheit to degrees Celsius, use °C = (°F − 32) × 5/9. The table below gives the values people look up most often, and the converter works for any number.

## Degrees Fahrenheit to degrees Celsius table

*Common degree Fahrenheit values converted to degrees Celsius.*

| Degrees Fahrenheit | Degrees Celsius |
| --- | --- |
| -40 °F | -40 |
| -20 °F | -28.88889 |
| -10 °F | -23.33333 |
| 0 °F | -17.77778 |
| 10 °F | -12.22222 |
| 20 °F | -6.666667 |
| 25 °F | -3.888889 |
| 30 °F | -1.111111 |
| 37 °F | 2.777778 |
| 50 °F | 10 |
| 75 °F | 23.88889 |
| 100 °F | 37.77778 |
| 150 °F | 65.55556 |
| 200 °F | 93.33333 |

## How the conversion works

The relationship is °C = (°F − 32) × 5/9. Both units measure temperature, so the conversion is a fixed formula that never changes. Temperature scales are the one common case where converting is not just multiplication — Celsius and Fahrenheit each put their zero in a different place, so an offset is applied as well as a scale factor.

## Common questions

### How many degrees Celsius are in one degree Fahrenheit?

One degree Fahrenheit equals -17.22222 degrees Celsius. °C = (°F − 32) × 5/9.

### How do you convert degrees Fahrenheit to degrees Celsius?

Use °C = (°F − 32) × 5/9. So 10 °F is -12.22222 °C.

### How many degrees Fahrenheit are in one degree Celsius?

One degree Celsius equals 33.8 degrees Fahrenheit, which is the reverse of the conversion above.

## Related pages

- [Degrees Celsius to Degrees Fahrenheit](https://atoneplace.net/convert/celsius-to-fahrenheit/)
- [Degrees Fahrenheit to Kelvin](https://atoneplace.net/convert/fahrenheit-to-kelvin/)

## Sources

- Guide for the Use of the International System of Units (SP 811) — NIST (https://www.nist.gov/pml/special-publication-811) [Public domain (US Government)]
- The International System of Units (SI Brochure) — Bureau International des Poids et Mesures (https://www.bipm.org/en/publications/si-brochure)
- Calculated on this page — At One Place (/about/)