Free online Kelvin to Celsius converter (K to °C). Instant conversion, formula, conversion table, real-world examples and FAQs.
Plug the Kelvin value into the temperature formula below.°C = K − 273.15
| Kelvin (K) | Celsius (°C) |
|---|---|
| 0 K | -273.15 °C |
| 10 K | -263.15 °C |
| 20 K | -253.15 °C |
| 30 K | -243.15 °C |
| 37 K | -236.15 °C |
| 50 K | -223.15 °C |
| 75 K | -198.15 °C |
| 100 K | -173.15 °C |
| 200 K | -73.15 °C |
| 300 K | 26.85 °C |
• Kelvin: Kelvin starts at absolute zero: 0 K = −273.15°C. It is the SI thermodynamic temperature scale used in science.
• Celsius: Celsius was introduced by Anders Celsius in 1742: 0°C = water freezing, 100°C = boiling. It is the world's most used scale.
• Watch significant figures: 2–3 decimals are enough for daily use; keep more for engineering and science.
1 K = -272.15 °C. Use the converter above to compute any value, or multiply K by the temperature formula.
Yes — conversions use the standard temperature formulas (e.g. F = C × 9/5 + 32), and results are rounded to 4 decimals.
Kelvin is used in physics, astronomy, and engineering — room temperature ≈ 293 K, Sun's surface ≈ 5778 K. Celsius is used for weather, body temperature (normal ≈ 36–37°C), and oven settings. Whenever a value is given in K but you need °C, this converter is the quick fix.
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