Celsius to Kelvin
Convert celsius to kelvin with the exact formula: K = °C + 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 0°C = 273.2K and boils at 100°C = 373.2K. Normal body temperature, 37°C, is 310.2K. Temperature conversions are essential for cooking with a foreign recipe or oven, checking the weather abroad, and science or health readings.
1 °C = 274.2 K
ResultFull conversion table
| °C | K |
|---|---|
| 0 | 273.2 |
| 10 | 283.2 |
| 20 | 293.2 |
| 25 | 298.2 |
| 30 | 303.2 |
| 37 | 310.2 |
| 40 | 313.2 |
| 100 | 373.2 |
| 150 | 423.2 |
| 180 | 453.2 |
| 200 | 473.2 |
| 220 | 493.2 |
How to convert celsius to kelvin
Apply the formula K = °C + 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 ≈ 453.2K and 200°C ≈ 473.2K.
Frequently asked questions
What's the formula for celsius to kelvin?
The formula is K = °C + 273.15.
What is 100°C in kelvin?
100°C is 373.2K.
What about body temperature (37°C)?
37°C equals 310.2K.
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