Convert Watts per Metre Kelvin to cal/(s·cm·°C)
1 watt per metre kelvin (W/(m·K)) = 0.002390057361 calories per second centimetre degree Celsius (cal/(s·cm·°C)). 1 cal/(s·cm·°C) = 418.4 W/(m·K). Example: 15 W/(m·K) = 15 × 0.002390057361 = 0.03585086042 cal/(s·cm·°C).
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1 W/(m·K) = 0.002390057361 cal/(s·cm·°C)
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk watt per metre kelvin to calorie per second centimetre degree Celsius converter to paste a column from Excel.
How to Convert Watt per Metre Kelvin to cal/(s·cm·°C)
- 1 W/(m·K) = 0.002390057361 cal/(s·cm·°C)
- 1 cal/(s·cm·°C) = 418.4 W/(m·K)
- Example: convert 15 W/(m·K) to cal/(s·cm·°C): 15 W/(m·K) = 15 × 0.002390057361 cal/(s·cm·°C) = 0.03585086042 cal/(s·cm·°C)
Reference conditions. cal/(s·cm·°C): Thermochemical calorie (4.184 J)
Formula
cal/(s·cm·°C) = W/(m·K) × 0.002390057361377
or cal/(s·cm·°C) = W/(m·K) ÷ 418.4
Derivation from SI units:
- The SI unit of thermal conductivity: heat flow (W) per metre of thickness per kelvin of temperature difference
- 1 cal_th/(s·cm·°C) = 4.184 J ÷ (1 s × 0.01 m × 1 K) = 418.4 W/(m·K) (exact)
Both units are defined exactly, so the factor is exact. Watt per Metre Kelvin definition: watt per metre kelvin; cal/(s·cm·°C) definition: calorie per second centimetre degree Celsius.
Worked examples
- A reading of 0.15 W/(m·K) converts to 0.0003585086042 cal/(s·cm·°C).
0.15 W/(m·K) × 0.002390057361 = 0.0003585086042 cal/(s·cm·°C) - A value of 16 W/(m·K) is 0.03824091778 cal/(s·cm·°C).
16 W/(m·K) × 0.002390057361 = 0.03824091778 cal/(s·cm·°C)
Watt per Metre Kelvin to cal/(s·cm·°C) conversion table
| Watts per Metre Kelvin (W/(m·K)) | cal/(s·cm·°C) |
|---|---|
| 0.024 W/(m·K) | 0.00005736137667 cal/(s·cm·°C) |
| 0.035 W/(m·K) | 0.00008365200765 cal/(s·cm·°C) |
| 0.04 W/(m·K) | 0.00009560229446 cal/(s·cm·°C) |
| 0.15 W/(m·K) | 0.0003585086042 cal/(s·cm·°C) |
| 0.6 W/(m·K) | 0.001434034417 cal/(s·cm·°C) |
| 1 W/(m·K) | 0.002390057361 cal/(s·cm·°C) |
| 1.4 W/(m·K) | 0.003346080306 cal/(s·cm·°C) |
| 16 W/(m·K) | 0.03824091778 cal/(s·cm·°C) |
| 50 W/(m·K) | 0.1195028681 cal/(s·cm·°C) |
| 205 W/(m·K) | 0.4899617591 cal/(s·cm·°C) |
| 401 W/(m·K) | 0.9584130019 cal/(s·cm·°C) |
Where it's used
Watts per Metre Kelvin are used for insulation λ-values (EN 12667, ISO 8301), while calories per second centimetre degree Celsius appear in older scientific literature. Both measure thermal conductivity (k, λ), so the conversion is a fixed factor.
Watt per Metre Kelvin to other thermal conductivity units
| Conversion | 1 W/(m·K) equals |
|---|---|
| watt per metre kelvin to calorie per second centimetre degree Celsius | 0.002390057361 cal/(s·cm·°C) |
| watt per metre kelvin to BTU per hour foot degree Fahrenheit | 0.5777893165 BTU/(h·ft·°F) |
| watt per metre kelvin to BTU inch per hour square foot degree Fahrenheit | 6.933471799 BTU·in/(h·ft²·°F) |
| watt per metre kelvin to milliwatt per metre kelvin | 1000 mW/(m·K) |
| watt per metre kelvin to kilocalorie per hour metre degree Celsius | 0.8598452279 kcal/(h·m·°C) |
| watt per metre kelvin to watt per centimetre kelvin | 0.01 W/(cm·K) |
Frequently asked questions
How many calories per second centimetre degree Celsius are in 1 watt per metre kelvin?
1 W/(m·K) = 0.002390057361 cal/(s·cm·°C).
How do I convert watts per metre kelvin to calories per second centimetre degree Celsius?
Multiply the value in W/(m·K) by 0.002390057361, or divide it by 418.4. For example, 15 W/(m·K) × 0.002390057361 = 0.03585086042 cal/(s·cm·°C).
Is the W/(m·K) to cal/(s·cm·°C) conversion exact?
Yes. Both units are defined exactly, so the ratio is exact; its decimal form does not terminate and is shown here to 10 significant figures (more with the precision selector).
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 4, coherent derived units with special names.
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "calorie_th per centimeter second degree Celsius [cal_th/(cm · s · °C)]".
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 Watts per Metre Kelvin to cal/(s·cm·°C). Retrieved October 25, 2026, from https://scientificconverters.com/thermal-conductivity/watts-per-meter-kelvin-to-calories-per-second-centimeter-celsius/
IEEE
Scientific Converters, "Convert Watts per Metre Kelvin to cal/(s·cm·°C)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/thermal-conductivity/watts-per-meter-kelvin-to-calories-per-second-centimeter-celsius/