408 W/m²·K = 71.853 BTU/hr·ft²·°F
| W/m²·K | BTU/hr·ft²·°F |
|---|---|
| 393 W/m²·K | 69.2113 |
| 398 W/m²·K | 70.0919 |
| 403 W/m²·K | 70.9724 |
| 408 | 71.853 |
| 413 W/m²·K | 72.7335 |
| 418 W/m²·K | 73.6141 |
| 423 W/m²·K | 74.4947 |
408 W/m²·K = 71.853 BTU/hr·ft²·°F
1 W/(m²·K) = 0.176110 BTU/(hr·ft²·°F) · 1 BTU/(hr·ft²·°F) = 5.67826 W/(m²·K)