Convert Watts per Square Metre Kelvin to cal/(s·cm²·°C)
1 watt per square metre kelvin (W/(m²·K)) = 0.00002390057361 calories per second square centimetre degree Celsius (cal/(s·cm²·°C)). 1 cal/(s·cm²·°C) = 41840 W/(m²·K). Example: 15 W/(m²·K) = 15 × 0.00002390057361 = 0.0003585086042 cal/(s·cm²·°C).
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1 W/(m²·K) = 0.00002390057361 cal/(s·cm²·°C)
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk watt per square metre kelvin to calorie per second square centimetre degree Celsius converter to paste a column from Excel.
How to Convert Watt per Square Metre Kelvin to cal/(s·cm²·°C)
- 1 W/(m²·K) = 0.00002390057361 cal/(s·cm²·°C)
- 1 cal/(s·cm²·°C) = 41840 W/(m²·K)
- Example: convert 15 W/(m²·K) to cal/(s·cm²·°C): 15 W/(m²·K) = 15 × 0.00002390057361 cal/(s·cm²·°C) = 0.0003585086042 cal/(s·cm²·°C)
Reference conditions. cal/(s·cm²·°C): Thermochemical calorie (4.184 J)
Formula
cal/(s·cm²·°C) = W/(m²·K) ÷ 41840
Derivation from SI units:
- The SI unit of heat transfer coefficient and thermal transmittance (U-value): heat flow (W) per square metre per kelvin
- 1 cal_th/(s·cm²·°C) = 4.184 J ÷ (1 s × 10⁻⁴ m² × 1 K) = 41 840 W/(m²·K) (exact)
Both units are defined exactly, so the factor is exact. Watt per Square Metre Kelvin definition: watt per square metre kelvin; cal/(s·cm²·°C) definition: calorie per second square centimetre degree Celsius.
Worked examples
- A reading of 1.4 W/(m²·K) converts to 0.00003346080306 cal/(s·cm²·°C).
1.4 W/(m²·K) × 0.00002390057361 = 0.00003346080306 cal/(s·cm²·°C) - A value of 25 W/(m²·K) is 0.0005975143403 cal/(s·cm²·°C).
25 W/(m²·K) × 0.00002390057361 = 0.0005975143403 cal/(s·cm²·°C)
Watt per Square Metre Kelvin to cal/(s·cm²·°C) conversion table
| Watts per Square Metre Kelvin (W/(m²·K)) | cal/(s·cm²·°C) |
|---|---|
| 0.15 W/(m²·K) | 0.000003585086042 cal/(s·cm²·°C) |
| 0.25 W/(m²·K) | 0.000005975143403 cal/(s·cm²·°C) |
| 0.3 W/(m²·K) | 0.000007170172084 cal/(s·cm²·°C) |
| 1.4 W/(m²·K) | 0.00003346080306 cal/(s·cm²·°C) |
| 2.8 W/(m²·K) | 0.00006692160612 cal/(s·cm²·°C) |
| 5 W/(m²·K) | 0.0001195028681 cal/(s·cm²·°C) |
| 10 W/(m²·K) | 0.0002390057361 cal/(s·cm²·°C) |
| 25 W/(m²·K) | 0.0005975143403 cal/(s·cm²·°C) |
| 100 W/(m²·K) | 0.002390057361 cal/(s·cm²·°C) |
| 1000 W/(m²·K) | 0.02390057361 cal/(s·cm²·°C) |
| 5000 W/(m²·K) | 0.1195028681 cal/(s·cm²·°C) |
Where it's used
Watts per Square Metre Kelvin are used for building U-values (walls, roofs, windows), while calories per second square centimetre degree Celsius appear in older scientific and metallurgical literature. Both measure heat transfer coefficient (h) and thermal transmittance (U-value), so the conversion is a fixed factor.
Watt per Square Metre Kelvin to other heat transfer coefficient units
| Conversion | 1 W/(m²·K) equals |
|---|---|
| watt per square metre kelvin to calorie per second square centimetre degree Celsius | 0.00002390057361 cal/(s·cm²·°C) |
| watt per square metre kelvin to BTU per hour square foot degree Fahrenheit | 0.1761101837 BTU/(h·ft²·°F) |
| watt per square metre kelvin to kilowatt per square metre kelvin | 0.001 kW/(m²·K) |
| watt per square metre kelvin to kilocalorie per hour square metre degree Celsius | 0.8598452279 kcal/(h·m²·°C) |
| watt per square metre kelvin to watt per square centimetre kelvin | 0.0001 W/(cm²·K) |
Frequently asked questions
How many calories per second square centimetre degree Celsius are in 1 watt per square metre kelvin?
1 W/(m²·K) = 0.00002390057361 cal/(s·cm²·°C).
How do I convert watts per square metre kelvin to calories per second square centimetre degree Celsius?
Multiply the value in W/(m²·K) by 0.00002390057361, or divide it by 41840. For example, 15 W/(m²·K) × 0.00002390057361 = 0.0003585086042 cal/(s·cm²·°C).
Is the W/(m²·K) to cal/(s·cm²·°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".
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 Square Metre Kelvin to cal/(s·cm²·°C). Retrieved October 25, 2026, from https://scientificconverters.com/heat-transfer-coefficient/watts-per-square-meter-kelvin-to-calories-per-second-square-centimeter-celsius/
IEEE
Scientific Converters, "Convert Watts per Square Metre Kelvin to cal/(s·cm²·°C)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/heat-transfer-coefficient/watts-per-square-meter-kelvin-to-calories-per-second-square-centimeter-celsius/