Kelvins to Celsiuss
Convert kelvin to celsius — instant, free, with the formula shown.
1 K=-272.15 °C
How to convert kelvin to celsius
Temperature scales use offset formulas, not a simple multiplier.
`°F = °C × 9/5 + 32` · `K = °C + 273.15` · `°R = (°C + 273.15) × 9/5`.
1 K ≈ -272.15 °C
K to °C conversion table
| Kelvins (K) | Celsiuss (°C) |
|---|---|
| 1 K | -272.15 °C |
| 2 K | -271.15 °C |
| 5 K | -268.15 °C |
| 10 K | -263.15 °C |
| 25 K | -248.15 °C |
| 50 K | -223.15 °C |
| 100 K | -173.15 °C |
| 250 K | -23.15 °C |
| 500 K | 226.85 °C |
| 1000 K | 726.85 °C |
Other kelvin conversions
Convert to celsius from another unit
K to °C — frequently asked
How many Celsiuss are in 1 kelvin?
1 kelvin = -272.15 Celsiuss.
What is the formula to convert kelvin to celsius?
`°F = °C × 9/5 + 32` · `K = °C + 273.15` · `°R = (°C + 273.15) × 9/5`.
How do I convert 10 Kelvins to Celsiuss?
10 K = -263.15 °C. For 100 K the answer is -173.15 °C. Use the calculator on this page for any other value.
When to convert kelvin to celsius
1Weather and climate (°C ↔ °F)
2Cooking and baking (°F ↔ °C for ovens)
3Science labs (K for absolute zero, low-temperature physics)
4Engineering thermodynamics (Rankine in some imperial systems)
Temperature conversion — common questions
What is 100°F in Celsius?
100°F = (100 − 32) × 5/9 = 37.78°C — close to human body temperature.
Is 0 K really the coldest possible temperature?
Yes. 0 Kelvin is absolute zero (−273.15°C), the theoretical lowest temperature where all classical motion stops.
Why is the Fahrenheit-to-Celsius formula not just a multiplication?
Because the zero points differ: 0°C corresponds to 32°F, so an offset of 32 is required in addition to the 5/9 scale factor.
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