Kelvin to Celsius
Convert kelvin to celsius with the exact formula: °C = K − 273.15. This isn't a simple multiply like other units, because temperature scales have different starting points — so use the formula (or the calculator above) rather than estimating.
For example, water freezes at 273.2K = 0°C and boils at 373.2K = 100°C. Normal body temperature, 310.2K, is 37°C. Temperature conversions are essential for cooking with a foreign recipe or oven, checking the weather abroad, and science or health readings.
1 K = -272.2 °C
ResultFull conversion table
| K | °C |
|---|---|
| 0 | -273.2 |
| 10 | -263.2 |
| 20 | -253.1 |
| 25 | -248.1 |
| 30 | -243.1 |
| 37 | -236.1 |
| 40 | -233.1 |
| 100 | -173.1 |
| 150 | -123.1 |
| 180 | -93.15 |
| 200 | -73.15 |
| 220 | -53.15 |
How to convert kelvin to celsius
Apply the formula °C = K − 273.15. Plug in your value and work through it step by step; the order of operations matters — especially the 32-degree offset between Celsius and Fahrenheit, and the 273.15 offset for Kelvin.
For baking, two handy anchors: 180°C ≈ 180°C and 200°C ≈ 200°C.
Frequently asked questions
What's the formula for kelvin to celsius?
The formula is °C = K − 273.15.
What is 100K in celsius?
100K is -173.1°C.
What about body temperature (310.2K)?
310.2K equals 37°C.
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