478 W/m²·K = 84.1807 BTU/hr·ft²·°F
| W/m²·K | BTU/hr·ft²·°F |
|---|---|
| 463 W/m²·K | 81.5391 |
| 468 W/m²·K | 82.4196 |
| 473 W/m²·K | 83.3002 |
| 478 | 84.1807 |
| 483 W/m²·K | 85.0613 |
| 488 W/m²·K | 85.9418 |
| 493 W/m²·K | 86.8224 |
478 W/m²·K = 84.1807 BTU/hr·ft²·°F
1 W/(m²·K) = 0.176110 BTU/(hr·ft²·°F) · 1 BTU/(hr·ft²·°F) = 5.67826 W/(m²·K)