Convert Per Kelvin to Per Degree Celsius (K⁻¹ to °C⁻¹)
1 per kelvin (K⁻¹) = 1 per degree Celsius (°C⁻¹). 1 °C⁻¹ = 1 K⁻¹. Example: 15 K⁻¹ = 15 × 1 = 15 °C⁻¹.
Also searched as per kelvin to °C⁻¹, per kelvin in °C⁻¹, per kelvin into per degree Celsius, K⁻¹ to °C⁻¹, K⁻¹ in per degree Celsius, K⁻¹ into per degree Celsius, per kelvin to per degree Celsius, K⁻¹ to per degree Celsius converter and how many per degree Celsius in a per kelvin.
1 K⁻¹ = 1 °C⁻¹
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk per kelvin to per degree Celsius converter to paste a column from Excel.
How to Convert Per Kelvin to Per Degree Celsius
- 1 K⁻¹ = 1 °C⁻¹
- 1 °C⁻¹ = 1 K⁻¹
- Example: convert 15 K⁻¹ to °C⁻¹: 15 K⁻¹ = 15 × 1 °C⁻¹ = 15 °C⁻¹
Formula
°C⁻¹ = K⁻¹ × 1
Derivation from SI units:
- The SI unit of the coefficient of thermal expansion: relative change in length (m/m) per kelvin
- 1/°C = 1/K, because a temperature difference of 1 °C equals 1 K
Both units are defined exactly, so the factor is exact. Per Kelvin definition: per kelvin; Per Degree Celsius definition: per degree Celsius.
Worked examples
- A reading of 0.000012 K⁻¹ converts to 0.000012 °C⁻¹.
0.000012 K⁻¹ × 1 = 0.000012 °C⁻¹ - A value of 0.00005 K⁻¹ is 0.00005 °C⁻¹.
0.00005 K⁻¹ × 1 = 0.00005 °C⁻¹
Per Kelvin to Per Degree Celsius conversion table
| Per Kelvin (K⁻¹) | Per Degree Celsius (°C⁻¹) |
|---|---|
| 0.0000005 K⁻¹ | 5 × 10⁻⁷ °C⁻¹ |
| 0.000001 K⁻¹ | 0.000001 °C⁻¹ |
| 0.000009 K⁻¹ | 0.000009 °C⁻¹ |
| 0.000012 K⁻¹ | 0.000012 °C⁻¹ |
| 0.000017 K⁻¹ | 0.000017 °C⁻¹ |
| 0.0000231 K⁻¹ | 0.0000231 °C⁻¹ |
| 0.00005 K⁻¹ | 0.00005 °C⁻¹ |
| 0.0001 K⁻¹ | 0.0001 °C⁻¹ |
| 0.00021 K⁻¹ | 0.00021 °C⁻¹ |
| 0.001 K⁻¹ | 0.001 °C⁻¹ |
Where it's used
Per Kelvin are used for linear expansion ΔL = α L ΔT, while per degree Celsius appear in engineering handbooks and material tables. Both measure coefficient of thermal expansion (α, CTE), so the conversion is a fixed factor.
Per Kelvin to other thermal expansion coefficient units
| Conversion | 1 K⁻¹ equals |
|---|---|
| per kelvin to per degree Celsius | 1 °C⁻¹ |
| per kelvin to ppm per kelvin | 1000000 ppm/K |
| per kelvin to per degree Fahrenheit | 0.5555555556 °F⁻¹ |
| per kelvin to ppm per degree Fahrenheit | 555555.5556 ppm/°F |
Frequently asked questions
How many per degree Celsius are in 1 per kelvin?
1 K⁻¹ = 1 °C⁻¹.
How do I convert per kelvin to per degree Celsius?
Multiply the value in K⁻¹ by 1. For example, 15 K⁻¹ × 1 = 15 °C⁻¹.
Is the K⁻¹ to °C⁻¹ conversion exact?
Yes. Both units are defined exactly, and 1 K⁻¹ is exactly 1 °C⁻¹.
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 4, degree Celsius.
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Per Kelvin to Per Degree Celsius (K⁻¹ to °C⁻¹). Retrieved October 25, 2026, from https://scientificconverters.com/thermal-expansion/per-kelvin-to-per-degree-celsius/
IEEE
Scientific Converters, "Convert Per Kelvin to Per Degree Celsius (K⁻¹ to °C⁻¹)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/thermal-expansion/per-kelvin-to-per-degree-celsius/