Kelvin to Fahrenheit Converter
Convert kelvin to Fahrenheit — subtract 273.15, then multiply by 1.8 and add 32. Results update as you type; exact factors shown.
One kelvin is -457.87 degrees Fahrenheit — see the exact factor, not a rounded rule of thumb.
How the kelvin to fahrenheit converter works
Celsius and Fahrenheit are offset scales, so the conversion is not a simple multiplication: °F = °C × 9/5 + 32 and °C = (°F − 32) × 5/9. Kelvin has the same size of degree as Celsius but starts at absolute zero: K = °C + 273.15. The two scales meet at −40°.
Australia is fully metric under the National Measurement Act 1960; imperial units appear only in trade with the US and in older documents.
Common temperature conversions
| From | To | Units |
|---|---|---|
| 0 K | -459.67 °F | kelvins to degrees Fahrenheit |
| 100 K | -279.67 °F | kelvins to degrees Fahrenheit |
| 200 K | -99.67 °F | kelvins to degrees Fahrenheit |
| 250 K | -9.67 °F | kelvins to degrees Fahrenheit |
| 273.15 K | 32 °F | kelvins to degrees Fahrenheit |
| 293 K | 67.73 °F | kelvins to degrees Fahrenheit |
| 300 K | 80.33 °F | kelvins to degrees Fahrenheit |
| 310 K | 98.33 °F | kelvins to degrees Fahrenheit |
| 373.15 K | 212 °F | kelvins to degrees Fahrenheit |
| 500 K | 440.33 °F | kelvins to degrees Fahrenheit |
| 1,000 K | 1,340.33 °F | kelvins to degrees Fahrenheit |
| 5,778 K | 9,940.73 °F | kelvins to degrees Fahrenheit |
Units in this converter and their exact factors
| Unit | Symbol | To kelvin |
|---|---|---|
| degree Celsius | °C | x+273.15 |
| degree Fahrenheit | °F | (x-32)×5÷9+273.15 |
| kelvin | K | x |
FAQFrequently asked questions about temperature conversion
What is the formula?
°F = (K − 273.15) × 9/5 + 32.
What is 0 K in Fahrenheit?
−459.67°F, absolute zero.
What is the surface of the Sun?
About 5,778 K, which is roughly 9,941°F.
What is body temperature in kelvin?
310 K.
Why do scientists use kelvin?
Because it starts at true zero, so ratios are meaningful — 600 K really is twice as hot as 300 K in thermal terms.
Where these figures come from
- BIPM — The International System of Units (SI Brochure, 9th edition) — definitions of the base and derived units.
- NIST Special Publication 811 — Guide for the Use of the International System of Units — the exact conversion factors used here.
- National Measurement Institute (NMI) — Australia's national measurement authority.
Last checked: September 2026. Conversion factors are fixed by definition and do not change with tax years or regulations.