Convert Watt per metre degree Celsius to Milliwatt per metre kelvin
Convert Watt per metre degree Celsius (W/(m·°C)) to Milliwatt per metre kelvin (mW/(m·K)) instantly and accurately.
Conversion Formula
mW/(m·K) = W/(m·°C) × 1000
About Watt per metre degree Celsius
The watt per metre degree Celsius (W/(m·°C)) equals exactly 1 W/(m·K) since temperature intervals 1 °C = 1 K. Widely used in building physics (EN ISO 6946), HVAC engineering, and European material datasheets as an equivalent notation. Stone: ≈2.5 W/(m·°C); softwood timber: ≈0.14 W/(m·°C); glass wool: ≈0.04 W/(m·°C). 1 W/(m·°C) = 1 W/(m·K).
About Milliwatt per metre kelvin
The milliwatt per metre kelvin (mW/(m·K)) equals exactly 10⁻³ W/(m·K). Used for gases and ultra-low thermal conductivity solids: still air ≈26 mW/(m·K), CO₂ ≈16 mW/(m·K), aerogels 12-20 mW/(m·K), vacuum insulation panels ≈5 mW/(m·K). Standard insulation products are typically specified in mW/(m·K). 1 mW/(m·K) = 10⁻³ W/(m·K) = 0.1 mW/(cm·K).
Quick Reference Table
| Watt per metre degree Celsius (W/(m·°C)) | Milliwatt per metre kelvin (mW/(m·K)) |
|---|---|
| 1 W/(m·°C) | 1000 mW/(m·K) |
| 2 W/(m·°C) | 2000 mW/(m·K) |
| 5 W/(m·°C) | 5000 mW/(m·K) |
| 10 W/(m·°C) | 10000 mW/(m·K) |
| 25 W/(m·°C) | 25000 mW/(m·K) |
| 50 W/(m·°C) | 50000 mW/(m·K) |
| 100 W/(m·°C) | 100000 mW/(m·K) |