Formula.kelvin = (fahrenheit − 32) × 5/9 + 273.15.
Relationship.K = (°F − 32) × 5/9 + 273.15.
Worked example. 68 °F = 293.15 K.
Fahrenheit to Kelvin Converter.
K = (°F − 32) × 5/9 + 273.15, so 68 °F = 293.15 K. Type any value below to convert Fahrenheit to Kelvin instantly.
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°F
Copied ✓ K
Copied ✓ Reference Table
| °C | °F | K | °R |
|---|---|---|---|
| -17.74 | 0.068 | 255.41 | 459.738 |
| -17.4 | 0.68 | 255.75 | 460.35 |
| -14 | 6.8 | 259.15 | 466.47 |
| 20 | 68 | 293.15 | 527.67 |
| 360 | 680 | 633.15 | 1139.67 |
| 3760 | 6800 | 4033.15 | 7259.67 |
| 37760 | 68000 | 38033.15 | 68459.67 |
How to convert Fahrenheit to Kelvin
Fahrenheit to Kelvin conversion table
| °F | K |
|---|---|
| -459.67 | 0 |
| -100 | 199.816667 |
| -40 | 233.15 |
| 0 | 255.372222 |
| 32 | 273.15 |
| 50 | 283.15 |
| 60 | 288.705556 |
| 68 | 293.15 |
| 70 | 294.261111 |
| 72 | 295.372222 |
| 80 | 299.816667 |
| 90 | 305.372222 |
| 98.6 | 310.15 |
| 100 | 310.927778 |
| 110 | 316.483333 |
| 120 | 322.038889 |
| 150 | 338.705556 |
| 180 | 355.372222 |
| 200 | 366.483333 |
| 212 | 373.15 |
| 250 | 394.261111 |
| 300 | 422.038889 |
| 400 | 477.594444 |
| 500 | 533.15 |
| 1000 | 810.927778 |
Frequently Asked Questions
How do I convert Fahrenheit to Kelvin?
Subtract 32, multiply by 5/9, then add 273.15: K = (°F − 32) × 5/9 + 273.15. For example, 68 °F → (68 − 32) × 5/9 = 20 °C → 293.15 K.
What is 32 °F in Kelvin?
32 °F is the freezing point of water, which is 0 °C or 273.15 K.
What is absolute zero in Fahrenheit?
0 K equals −459.67 °F (or −273.15 °C). Nothing can be colder, because it is the point where molecular motion effectively stops.
Why does Kelvin have no degree symbol?
Because it is an absolute scale, not a relative one. Temperatures are written as "293 K", never "293 °K" — the degree sign was officially dropped in 1967.