Convert Watt per millimetre kelvin to Kilocalorie per metre per hour per degree Celsius
Convert Watt per millimetre kelvin (W/(mm·K)) to Kilocalorie per metre per hour per degree Celsius (kcal/(m·h·°C)) instantly and accurately.
Conversion Formula
kcal/(m·h·°C) = W/(mm·K) × 859.8452279
About Watt per millimetre kelvin
The watt per millimetre kelvin (W/(mm·K)) equals exactly 1000 W/(m·K) since 1 mm = 10⁻³ m. Used in microelectronics thermal engineering where components are millimetre-scale: copper ≈0.385, silicon ≈0.148 W/(mm·K). Thermal interface material datasheets for high-performance pads and solder joints commonly use this unit. 1 W/(mm·K) = 1000 W/(m·K) = 10 W/(cm·K).
About Kilocalorie per metre per hour per degree Celsius
The kcal/(m·h·°C) equals exactly 4186.8/3600 W/(m·K) = 1.163 W/(m·K) (1 kcal(IT) = 4186.8 J). Used in pre-SI continental European engineering literature, older DIN/BS standards, and Soviet-era technical documentation. Brick: ≈0.6; dense concrete: ≈1.3; carbon steel: ≈38 kcal/(m·h·°C). 1 kcal/(m·h·°C) = 1.163 W/(m·K).
Quick Reference Table
| Watt per millimetre kelvin (W/(mm·K)) | Kilocalorie per metre per hour per degree Celsius (kcal/(m·h·°C)) |
|---|---|
| 1 W/(mm·K) | 859.845 kcal/(m·h·°C) |
| 2 W/(mm·K) | 1719.69 kcal/(m·h·°C) |
| 5 W/(mm·K) | 4299.23 kcal/(m·h·°C) |
| 10 W/(mm·K) | 8598.45 kcal/(m·h·°C) |
| 25 W/(mm·K) | 21496.1 kcal/(m·h·°C) |
| 50 W/(mm·K) | 42992.3 kcal/(m·h·°C) |
| 100 W/(mm·K) | 85984.5 kcal/(m·h·°C) |