Kelvin to degrees Fahrenheit
Type a value in K to get it in °F instantly.
That's between absolute zero and the coldest place on Earth. Water freezes here: expect ice.
Convert the other way: °F to K
What it means
How warm is that?
Reference temperatures are typical values at sea level. Water boils lower up a mountain, where the air pressure is less.
The math
How to convert K to °F
Subtract 273.15, multiply by 9/5, then add 32: °F = (K − 273.15) × 1.8 + 32.
Example: 100 K = -279.67 °F.
Every unit
Your temperature in every unit
Tables
K to °F conversion table
| K | °F |
|---|---|
| -40 K | -531.67 °F |
| -20 K | -495.67 °F |
| -10 K | -477.67 °F |
| 0 K | -459.67 °F |
| 5 K | -450.67 °F |
| 10 K | -441.67 °F |
| 15 K | -432.67 °F |
| 20 K | -423.67 °F |
| 25 K | -414.67 °F |
| 30 K | -405.67 °F |
| 35 K | -396.67 °F |
| 37 K | -393.07 °F |
| 40 K | -387.67 °F |
| 50 K | -369.67 °F |
| 100 K | -279.67 °F |
| 180 K | -135.67 °F |
| 200 K | -99.67 °F |
| 220 K | -63.67 °F |
°F to K conversion table
| °F | K |
|---|---|
| -40 °F | 233.15 K |
| -20 °F | 244.261 K |
| -10 °F | 249.817 K |
| 0 °F | 255.372 K |
| 5 °F | 258.15 K |
| 10 °F | 260.928 K |
| 15 °F | 263.706 K |
| 20 °F | 266.483 K |
| 25 °F | 269.261 K |
| 30 °F | 272.039 K |
| 35 °F | 274.817 K |
| 37 °F | 275.928 K |
| 40 °F | 277.594 K |
| 50 °F | 283.15 K |
| 100 °F | 310.928 K |
| 180 °F | 355.372 K |
| 200 °F | 366.483 K |
| 220 °F | 377.594 K |
Quick answers
Quick answers
- How many °F is 1 K?
- 1 K is -457.87 °F.
- How many °F is 10 K?
- 10 K is -441.67 °F.
- How many °F is 100 K?
- 100 K is -279.67 °F.
The units
About these units
Kelvin (K)
The kelvin is the SI unit of temperature and starts at absolute zero, −273.15 °C. Kelvin steps match Celsius steps, and the degree sign is not used.
Degrees Fahrenheit (°F)
Fahrenheit puts water freezing at 32° and boiling at 212°, so each degree is smaller than a Celsius degree. The US, its territories and a few islands still use it.
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