256.5 W/m²·K = 45.1723 BTU/hr·ft²·°F
| W/m²·K | BTU/hr·ft²·°F |
|---|---|
| 241.5 W/m²·K | 42.5306 |
| 246.5 W/m²·K | 43.4112 |
| 251.5 W/m²·K | 44.2917 |
| 256.5 | 45.1723 |
| 261.5 W/m²·K | 46.0528 |
| 266.5 W/m²·K | 46.9334 |
| 271.5 W/m²·K | 47.8139 |
256.5 W/m²·K = 45.1723 BTU/hr·ft²·°F
1 W/(m²·K) = 0.176110 BTU/(hr·ft²·°F) · 1 BTU/(hr·ft²·°F) = 5.67826 W/(m²·K)