At One Place

1 °F to °C

1 degree Fahrenheit in degrees Celsius
1 °F = -17.22222 °C
°C = (°F − 32) × 5/9

1 degree Fahrenheit is -17.22222 degrees Celsius. To get there, use °C = (°F − 32) × 5/9.

Values either side

Degrees Fahrenheit near 1, converted to degrees Celsius.
Degrees Fahrenheit Degrees Celsius
0.5 °F -17.5
1 °F ← -17.22222
1.5 °F -16.94444
2 °F -16.66667
2.5 °F -16.38889
3 °F -16.11111

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

What is 1 °F in degrees Celsius?
1 °F is -17.22222 °C.
How do you convert degrees Fahrenheit to degrees Celsius?
Use °C = (°F − 32) × 5/9.

Related pages

Sources

  1. Guide for the Use of the International System of Units (SP 811) — NIST (Public domain (US Government))
  2. The International System of Units (SI Brochure) — Bureau International des Poids et Mesures
  3. Calculated on this page — At One Place

How these figures are compiled and checked