Fahrenheit to Kelvin Converter (°F to K)

How to convert Fahrenheit to Kelvin

K = (°F + 459.67) × 5/9

Fahrenheit to Kelvin combines two steps in one formula: adding 459.67 shifts the scale so that zero lands on absolute zero (-459.67°F), and multiplying by 5/9 converts the smaller Fahrenheit degrees into kelvins. You can also convert °F to °C first, then simply add 273.15.

Worked examples

Convert 32°F: (32 + 459.67) × 5/9 = 273.15 K (water freezes)
Convert 98.6°F: (98.6 + 459.67) × 5/9 = 310.15 K (body temperature)
Convert -459.67°F: (-459.67 + 459.67) × 5/9 = 0 K (absolute zero)

Fahrenheit to Kelvin conversion table (°F to K)

Fahrenheit (°F)	Kelvin (K)
-40°F	233.15K
-30°F	238.71K
-20°F	244.26K
-10°F	249.82K
0°F	255.37K
10°F	260.93K
20°F	266.48K
30°F	272.04K
40°F	277.59K
50°F	283.15K
60°F	288.71K
70°F	294.26K
80°F	299.82K
90°F	305.37K
100°F	310.93K
110°F	316.48K
120°F	322.04K
130°F	327.59K
140°F	333.15K
150°F	338.71K
160°F	344.26K
170°F	349.82K
180°F	355.37K
190°F	360.93K
200°F	366.48K
210°F	372.04K
220°F	377.59K

Reference temperatures in °F and K

Reference point	°F	K
Absolute zero	-459.67°F	0K
Arctic winter day	-22°F	243.15K
Home freezer	-0.4°F	255.15K
Water freezes / ice melts	32°F	273.15K
Refrigerator	37.4°F	276.15K
Cool spring day	50°F	283.15K
Comfortable room	69.8°F	294.15K
Summer afternoon	86°F	303.15K
Normal body temperature	98.6°F	310.15K
Hot bath	104°F	313.15K
Death Valley record heat	134.06°F	329.85K
Water boils (sea level)	212°F	373.15K
Moderate oven	356°F	453.15K

Frequently asked questions

What is absolute zero in Fahrenheit?

-459.67°F, which equals 0 K exactly.

Is there a simpler two-step method?

Yes: convert Fahrenheit to Celsius with (°F − 32) × 5/9, then add 273.15 to get Kelvin.