C

21 °F to °C

-6.11 °C

21 degrees Fahrenheit equals -6.1111 degrees Celsius.

How the conversion works

This one is a formula rather than a single multiplier:

°C = (°F − 32) × 5/9 → -6.1111 °C

Going the other way: convert -6.11 °C back in the full temperature converter

Convert a different temperature

°F =-6.11 °C

Open the full temperature converter for every other unit.

Nearby values

°F°C
15 °F-9.44 °C
18 °F-7.78 °C
20 °F-6.67 °C
22 °F-5.56 °C
25 °F-3.89 °C
28 °F-2.22 °C

Questions

What is 21 °F in °C?
21 °F is -6.11 °C (-6.1111 °C to four decimal places).
How do you convert °F to °C?
Use °C = (°F − 32) × 5/9. For 21 °F that gives -6.1111 °C.
What does 21 °F actually mean?
It sits between 15 and 28 °F; the table on this page shows how those compare.