How to Convert Kelvin to Fahrenheit or Celsius

Last Updated: February 10, 2023 References

The Kelvin scale is a thermodynamic temperature scale where zero defines the point at which molecules give off no heat and all thermal motion ceases. In order to convert Kelvin measurements into Fahrenheit or Celsius, a simple plug-and-chug is all that's called for.

Method 1

Method 1 of 2:

Convert Kelvin to Fahrenheit

1
Write down the formula for converting Kelvin to Fahrenheit. The formula is: ºF = 1.8 x (K - 273) + 32.^{[1]
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2
Write down the Kelvin temperature. The Kelvin temperature in this example is 373 K. Remember that you should not use degrees when measuring the temperature in Kelvin.^{[2]
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3
Subtract 273 from the Kelvin temperature.^{[3]
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Research source} Just subtract 273 from 373. 373 - 273 = 100.
4
Multiply the result by 9/5 or 1.8.^{[4]
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Research source} Now, multiply the answer, 100, by 1.8. 100 * 1.8 = 180.
5
Add 32 to your final answer. Just add 32 to 180 to get your final answer.^{[5]
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Research source} 180 + 32 = 212. Therefore, 373 K = 212ºF.

Method 2

Method 2 of 2:

Convert Kelvin to Celsius

1
Write down the formula for converting Kelvin to Celsius. The formula is: ºC = K - 273.^{[6]
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2
Write down the Kelvin temperature. In this case, let's use 273 Kelvin.
3
Subtract 273 from the Kelvin temperature.^{[7]
X
Research source} Just subtract 273 from 273. 273 - 273 = 0. Therefore, 273K = 0 ºC.

Community Q&A

Question

How do I convert F to C?

Donagan

Top Answerer

Subtract 32 from F, then multiply by 5/9.
Question

How do you convert fahrenheit to kelvin?

Community Answer

Convert from Fahrenheit to Celsius, then convert from Celsius to Kelvin.°F ->°C; [°C] = ([°F] - 32) × 5/9; °C ->K; K = [°C]+273.
Question

If a graph is plotted taking the temperature in Fahrenheit along the Y- axis, and the corresponding temperature in Celsius along the X- axis, then is the graph a straight line?

Donagan

Top Answerer

Yes.