Temperature
Kto°F
Convert kelvin (K) to degrees Fahrenheit (°F).
Converter
K
Accepts numbers or expressions, e.g. 150 + 14.7
Result
°F
Rendered to 6 significant figures.
Formula
Formula
°F = (K − 273.15) × 9⁄5 + 32
Temperature conversions involve different scale zero-points, so a single multiplicative factor does not exist. Apply the formula to each value individually.
Worked example
Convert 300 K to °F.
- 01300 − 273.15 = 26.8500
- 0226.8500 × 9⁄5 = 48.3300
- 0348.3300 + 32 = 80.3300 °F
Result300 K = 80.33 °F
Conversion table
| K | °F |
|---|---|
| 0 | -459.67 |
| 100 | -279.67 |
| 200 | -99.67 |
| 273.15 | 32 |
| 300 | 80.33 |
| 400 | 260.33 |
| 500 | 440.33 |
| 700 | 800.33 |
| 1000 | 1340.3 |
| 1500 | 2240.3 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the formula to convert K to °F?
Temperature conversions are not a single multiplier because the scales have different zero points. Use °F = (K − 273.15) × 9⁄5 + 32 to convert any value of K to °F.
How do I convert 1 K to °F?
1 K corresponds to -457.87 °F. Apply the formula °F = (K − 273.15) × 9⁄5 + 32 to your value.
How do I convert °F back to K?
Use the inverse formula. For example, to go from °F back to K, rearrange °F = (K − 273.15) × 9⁄5 + 32 for K. See the °F to K page for the direct formula.
When would I need to convert kelvin to degree Fahrenheit?
Temperature scale conversions are routine in process engineering: instrumentation often reads in °C or °F, while thermodynamic calculations (gas laws, enthalpy) require absolute units (K or °R). Always use absolute units for any equation involving a ratio of temperatures.
Is the conversion exact?
Yes — the temperature scale relationships are exact by definition (the Celsius–Kelvin offset is 273.15 exactly; the Fahrenheit–Rankine offset is 459.67 exactly).