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Temperature

Kelvin to Fahrenheit Converter

Convert kelvins (K) to degrees Fahrenheit (°F). 1 K = -457.87 °F, and 1 °F = 255.9277778 K.

1 K = -457.87 °F

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Formula

°F = (K − 273.15) × 9/5 + 32

How to convert

To convert kelvins to degrees Fahrenheit, use the formula °F = (K − 273.15) × 9/5 + 32. For example, 310.15 K = 98.6 °F.

Conversion table

Kelvin (K) Fahrenheit (°F)
0 K -459.67 °F
100 K -279.67 °F
200 K -99.67 °F
250 K -9.67 °F
273.15 K 32 °F
293.15 K 68 °F
300 K 80.33 °F
310.15 K 98.6 °F
373.15 K 212 °F
500 K 440.33 °F
1,000 K 1,340.33 °F

About these units

Celsius puts 0° at the freezing point and 100° at the boiling point of water at sea level. Fahrenheit puts them at 32° and 212°, so one Celsius degree equals 1.8 Fahrenheit degrees. Kelvin uses Celsius-sized degrees but starts at absolute zero (−273.15 °C) and is written without a degree sign. Because the scales have different zero points, a temperature conversion adds or subtracts an offset as well as scaling.

FAQ

› How do I convert K to °F?

1 K = -457.87 °F. To convert, use the formula °F = (K − 273.15) × 9/5 + 32: 310.15 K = 98.6 °F.

› What is 1 °F in K?

1 °F = 255.9277778 K. The reverse formula is K = (°F − 32) × 5/9 + 273.15.

› At what temperature are Celsius and Fahrenheit equal?

At −40°: −40 °C is exactly −40 °F.

› What is normal body temperature?

About 37 °C, which is 98.6 °F or 310.15 K. Normal readings vary by about half a degree Celsius.