Kelvin to Degrees Celsius
1 kelvin = -272.15 degrees Celsius · 1 °C = 274.15 K
1 kelvin = -272.15 degrees Celsius
How it’s calculated
°C = K − 273.15
- Temperature scales have different zero points, so the conversion adds or subtracts an offset as well as scaling.
- 1 K = -272.15 °C · 1 °C = 274.15 K
Show worked solutionFactor, unit cancellation and rounding, step by step
Use the exact scale definitions
Temperature scales have different zero points, so this is not a single multiplication: it adds or subtracts an offset as well as scaling. The definitions are exact (0 °C = 273.15 K; 1 °F = 5/9 K; absolute zero = −459.67 °F). Source: BIPM SI Brochure (9th ed.).
Step 1: subtract the offset
Subtract 273.15.
Round the answer
Rounded to 5 significant figures.
Answer: -272.15 °C · Temperature readings include an offset; for a temperature difference use only the scale factor.
1 K in other units
Batch convert K → °C
- 1 K = -272.15 °C
- 5 K = -268.15 °C
- 10 K = -263.15 °C
- 25 K = -248.15 °C
Quick examples
- 1 kelvin = -272.15 degrees Celsius
- 5 kelvin = -268.15 degrees Celsius
- 10 kelvin = -263.15 degrees Celsius
- 25 kelvin = -248.15 degrees Celsius
- 100 kelvin = -173.15 degrees Celsius
About these units
Kelvin (K)
SI (metric)
SI base unit of thermodynamic temperature; 0 K is absolute zero.
Source: BIPM SI Brochure (9th ed.)
Degree Celsius (°C)
SI (metric)
T(°C) = T(K) − 273.15.
Source: BIPM SI Brochure (9th ed.)
Kelvin to degrees Celsius conversion table
| Kelvin (K) | Degrees Celsius (°C) |
|---|---|
| -40 K | −313.15 °C |
| -20 K | −293.15 °C |
| -10 K | −283.15 °C |
| 0 K | −273.15 °C |
| 5 K | −268.15 °C |
| 10 K | −263.15 °C |
| 15 K | −258.15 °C |
| 20 K | −253.15 °C |
| 25 K | −248.15 °C |
| 30 K | −243.15 °C |
| 35 K | −238.15 °C |
| 37 K | −236.15 °C |
| 40 K | −233.15 °C |
| 50 K | −223.15 °C |
| 60 K | −213.15 °C |
| 80 K | −193.15 °C |
| 100 K | −173.15 °C |
| 150 K | −123.15 °C |
| 180 K | −93.15 °C |
| 200 K | −73.15 °C |
Related conversions
Frequently asked questions
How do I convert kelvin to degrees Celsius?
Use °C = K − 273.15. Temperature scales have different zero points, so the conversion adds or subtracts an offset as well as scaling.
How many degrees Celsius are in 1 kelvin?
1 kelvin (K) equals -272.15 degrees Celsius (°C).
How many kelvin are in 1 degree Celsius?
1 degree Celsius (°C) equals 274.15 kelvin (K).
What is 10 K in °C?
10 kelvin = -263.15 degrees Celsius.
What is a kelvin?
SI base unit of thermodynamic temperature; 0 K is absolute zero.
What is a degree Celsius?
T(°C) = T(K) − 273.15.
Formula: °C = K − 273.15. Factors last reviewed 2026-10-27.