Free Kelvin to Fahrenheit Calculator

Kelvin to Fahrenheit Converter

Convert Kelvin to Fahrenheit using the formula °F = (K − 273.15) × 9/5 + 32. Enter any Kelvin value below to get the Fahrenheit result, see the formula step, and check our reference examples.

0 K = −459.67°F 273.15 K = 32°F 310.15 K = 98.6°F 373.15 K = 212°F
Fahrenheit
32 °F
Freezing point
Formula:
°F = (K − 273.15) × 9/5 + 32
(273.15 − 273.15) × 9/5 + 32 = 32°F
0 K = −459.67°F
Absolute zero
273.15 K = 32°F
Water freezes
310.15 K = 98.6°F
Human body temp
373.15 K = 212°F
Water boils

Kelvin to Fahrenheit Conversion Table

Need a quick reference without using our kelvin to fahrenheit calculator? Use this chart to find common temperatures. It shows everything from 0 kelvin to fahrenheit up to boiling points.

Kelvin (K) Fahrenheit (°F)
0 K -459.67°F
77.15 K -321.07°F
233.15 K -40°F
253.15 K -4°F
273.15 K 32°F
293.15 K 68°F
298.15 K 77°F
310.15 K 98.6°F
323.15 K 122°F
333.15 K 140°F
373.15 K 212°F
473.15 K 392°F
1273.15 K 1832°F
5778.15 K 9941°F

The Kelvin to Fahrenheit Formula

°F = (K − 273.15) × 9/5 + 32

If you want to know how to calculate kelvin to fahrenheit, first convert Kelvin into Celsius by subtracting 273.15. Then you convert that Celsius value into Fahrenheit by multiplying by 9/5 and adding 32. This gives you the standard k to f formula.

This two step equation for kelvin to fahrenheit works perfectly. Kelvin and Celsius share the same interval size. Fahrenheit uses a smaller degree interval and a completely different zero point.

Worked Examples

Room Temperature
(293.15 − 273.15) × 9/5 + 32 = 68°F
Warm Indoor Climate
(298.15 − 273.15) × 9/5 + 32 = 77°F
Body Temperature
(310.15 − 273.15) × 9/5 + 32 = 98.6°F
Boiling Water
(373.15 − 273.15) × 9/5 + 32 = 212°F
Absolute Zero
(0 − 273.15) × 9/5 + 32 = −459.67°F

Reverse Operation

K = (°F − 32) × 5/9 + 273.15

Need to work backward? You can change kelvin to fahrenheit in reverse. Subtract 32 from Fahrenheit, multiply by 5/9, and add 273.15. You can also use our dedicated Fahrenheit to Kelvin Converter →.

How to Convert Kelvin to Fahrenheit

Wondering how do you convert kelvin to fahrenheit manually? Follow this simple guide to convert k to f.

1
Identify your starting temperature in Kelvin.
Example: 300 K
2
Subtract 273.15. This converts Kelvin into a Celsius based value.
300 − 273.15 = 26.85
3
Multiply by 9/5, then add 32.
26.85 × 9/5 + 32 = 80.33°F

Understanding the Kelvin to Fahrenheit Scale

Kelvin is an absolute temperature scale used in science and engineering. It starts at absolute zero. That means 0 K is the lowest possible temperature.

Fahrenheit is mostly used for weather, ovens, and everyday temperature readings in the United States. A kelvin to fahrenheit conversion is super helpful when scientific temperatures need to be explained in a more familiar format. People often search for degrees kelvin to fahrenheit, but keep in mind that Kelvin does not officially use the degree symbol.

Extended Conversion Chart

Browse common k to f values. Click any pair to load it into the convert kelvin to fahrenheit calculator above.

0 K-459.67°F
77.15 K-320.8°F
233.15 K-40°F
253.15 K-4°F
263.15 K14°F
273.15 K32°F
283.15 K50°F
288.15 K59°F
293.15 K68°F
294.15 K69.8°F
295.15 K71.6°F
296.15 K73.4°F
298.15 K77°F
300.15 K80.6°F
303.15 K86°F
310.15 K98.6°F
313.15 K104°F
323.15 K122°F
333.15 K140°F
343.15 K158°F
353.15 K176°F
363.15 K194°F
373.15 K212°F
423.15 K302°F
473.15 K392°F

Kelvin to Fahrenheit FAQs

Use °F = (K − 273.15) × 9/5 + 32. This converts Kelvin (K) to Fahrenheit (°F). It is the most common equation for kelvin to fahrenheit.
Subtract 273.15 from your Kelvin value, multiply that number by 9/5, then add 32. The k to f conversion formula is always °F = (K − 273.15) × 9/5 + 32.
0 K = −459.67°F. This is absolute zero. A 0 k to f conversion gives you the lowest temperature possible.
100 K = −279.67°F. You can get this 100 k to f result by plugging 100 into the k to f formula.
273.15 K = 32°F. This specific 273 k to f conversion represents the freezing point of water at sea level.
300 K ≈ 80.33°F. Here is the calculation for 300 k to f: (300 − 273.15) × 9/5 + 32 = 80.33°F.
No. Kelvin is written just as K, not °K. People still frequently look up degrees kelvin to degrees fahrenheit, but the degree symbol is only for Fahrenheit and Celsius.