How do I convert temperatures?
Enter the desired temperature in either Fahrenheit or Celsius. The result will update instantly as you change the degrees.
How does the temperature converter work?
Fahrenheit and Celsius are related through a so called linear relationship. The formula is different depending on whether you're converting from Fahrenheit to Celsius or Celsius to Fahrenheit
Converting from Fahrenheit to Celsius
In order to convert from Fahrenheit to Celsius we simply subtract 32 and multiply by 5/9. That is, °C = (°F - 32) · (5/9).
Let's try an example: What is 32° Fahrenheit in Celsius? Well (32 °F - 32) · (5/9) = (0) · (5/9) = 0 °C. Admittedly we chose a pretty convenient number as 32 °F becomes a nice and round 0 °C.
Converting from Celsius to Fahrenheit
In order to convert from Celsius to Fahrenheit we simply multiply by 9/5 and add 32. That is, °F = (9/5) · °C + 32.
For example, if we wanted to see what 0° Celsius is in Fahrenheit we simply plug in 0 in this formula: (9/5) · 0 + 32 = 0 + 32 = 32 °F. This is fortunately what we expected as our previous example showed that 32 °F = 0 °C.