Kelvins to degrees Celsius
°C = K − 273.15
Reverse: degrees Celsius to kelvins
How to convert kelvins to degrees Celsius
Temperature scales start from different zero points, so the conversion is not a single multiplication. Use the formula above: °C = K − 273.15. For example, 20 k is -253.15 c.
Quick estimate
Work through the formula above for exact results; for weather temperatures, “double and add 30” (°C to °F) or “take 30 and halve” (°F to °C) gets within a few degrees.
Where it comes up
Temperature conversions come up in weather forecasts, cooking and oven settings, body temperature and science classes.
| kelvins | degrees Celsius |
|---|---|
| 1 k | -272.15 c |
| 2 k | -271.15 c |
| 3 k | -270.15 c |
| 4 k | -269.15 c |
| 5 k | -268.15 c |
| 6 k | -267.15 c |
| 7 k | -266.15 c |
| 8 k | -265.15 c |
| 9 k | -264.15 c |
| 10 k | -263.15 c |
| 11 k | -262.15 c |
| 12 k | -261.15 c |
| 13 k | -260.15 c |
| 14 k | -259.15 c |
| 15 k | -258.15 c |
| 16 k | -257.15 c |
| 17 k | -256.15 c |
| 18 k | -255.15 c |
| 19 k | -254.15 c |
| 20 k | -253.15 c |
| 25 k | -248.15 c |
| 30 k | -243.15 c |
| 40 k | -233.15 c |
| 50 k | -223.15 c |
| 60 k | -213.15 c |
| 70 k | -203.15 c |
| 75 k | -198.15 c |
| 80 k | -193.15 c |
| 90 k | -183.15 c |
| 100 k | -173.15 c |
| 120 k | -153.15 c |
| 150 k | -123.15 c |
| 200 k | -73.15 c |
| 250 k | -23.15 c |
| 300 k | 26.85 c |
| 400 k | 126.85 c |
| 500 k | 226.85 c |
| 750 k | 476.85 c |
| 1,000 k | 726.85 c |
| 1,500 k | 1,226.85 c |
| 2,000 k | 1,726.85 c |
| 5,000 k | 4,726.85 c |
| 10,000 k | 9,726.85 c |
Questions
How many degrees Celsius are in a kelvin?
This is a temperature scale, so it depends on the value: use °C = K − 273.15.
How do I convert kelvins to degrees Celsius in a spreadsheet?
Put the temperature in A1 and type =A1-273.15.
Are the values in the table exact?
They are calculated from the exact definitions of the units and rounded only for display. Open any row for the full working.