🌡️ Temperature · Comparison
Fahrenheit (°F) vs Kelvin (K)
See the key differences, formulas, and conversion table.
// Side-by-side
| Fahrenheit (°F) (°F) | Kelvin (K) (K) | Fahrenheit (°F) (°F) ← |
|---|---|---|
| 1 °F | 255.92778 K | 1 K = -457.87 °F |
| 5 °F | 258.15 K | 5 K = -450.67 °F |
| 10 °F | 260.92778 K | 10 K = -441.67 °F |
| 20 °F | 266.48333 K | 20 K = -423.67 °F |
| 25 °F | 269.26111 K | 25 K = -414.67 °F |
| 50 °F | 283.15 K | 50 K = -369.67 °F |
| 100 °F | 310.92778 K | 100 K = -279.67 °F |
| 200 °F | 366.48333 K | 200 K = -99.67 °F |
| 500 °F | 533.15 K | 500 K = 440.33 °F |
| 1000 °F | 810.92778 K | 1000 K = 1,340.33 °F |
Fahrenheit (°F) to Kelvin (K) formula
K = °F × 255.92778
Kelvin (K) to Fahrenheit (°F) formula
°F = K × -457.87
How to use this comparison
Fahrenheit (°F) vs Kelvin (K) in practice
Use this page when you need to compare Fahrenheit (°F) and Kelvin (K) side by side, explain the difference to someone else, or sanity-check both directions at once. Use the dedicated converter when you already know the direction and just need a precise result for one value.
Best for comparison
Read the ratio, quick table, and reverse formula before choosing which unit to show in a report or product UI.
Use converter for precision
For a single value, open the °F to K or K to °F converter and keep the result tied to one direction.
Common mistake
Do not reuse the °F to K multiplier for the reverse direction. The reverse multiplier is -457.87, not 255.92778.
// Frequently Asked Questions
What is the difference between Fahrenheit (°F) and Kelvin (K)?▼
Fahrenheit (°F) (°F) and Kelvin (K) (K) are both units of temperature. 1 °F = 255.92778 K, and 1 K = -457.87 °F.
How do you convert Fahrenheit (°F) to Kelvin (K)?▼
To convert Fahrenheit (°F) to Kelvin (K), multiply by 255.92778. Formula: K = °F × 255.92778.
How do you convert Kelvin (K) to Fahrenheit (°F)?▼
To convert Kelvin (K) to Fahrenheit (°F), multiply by -457.87. Formula: °F = K × -457.87.
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