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1 °C = 274.15 K
Open in Unit ConverterFormula
K = °C + 273.15
How to convert
To convert degrees Celsius to kelvins, use the formula K = °C + 273.15. For example, 30 °C = 303.15 K.
Conversion table
| Celsius (°C) | Kelvin (K) |
|---|---|
| -40 °C | 233.15 K |
| -20 °C | 253.15 K |
| -10 °C | 263.15 K |
| 0 °C | 273.15 K |
| 10 °C | 283.15 K |
| 15 °C | 288.15 K |
| 20 °C | 293.15 K |
| 25 °C | 298.15 K |
| 30 °C | 303.15 K |
| 37 °C | 310.15 K |
| 40 °C | 313.15 K |
| 50 °C | 323.15 K |
| 100 °C | 373.15 K |
| 180 °C | 453.15 K |
| 200 °C | 473.15 K |
About these units
Celsius puts 0° at the freezing point and 100° at the boiling point of water at sea level. Fahrenheit puts them at 32° and 212°, so one Celsius degree equals 1.8 Fahrenheit degrees. Kelvin uses Celsius-sized degrees but starts at absolute zero (−273.15 °C) and is written without a degree sign. Because the scales have different zero points, a temperature conversion adds or subtracts an offset as well as scaling.
FAQ
› How do I convert °C to K?
1 °C = 274.15 K. To convert, use the formula K = °C + 273.15: 30 °C = 303.15 K.
› What is 1 K in °C?
1 K = -272.15 °C. The reverse formula is °C = K − 273.15.
› At what temperature are Celsius and Fahrenheit equal?
At −40°: −40 °C is exactly −40 °F.
› What is normal body temperature?
About 37 °C, which is 98.6 °F or 310.15 K. Normal readings vary by about half a degree Celsius.