409.5 W/m²·K = 72.1172 BTU/hr·ft²·°F
| W/m²·K | BTU/hr·ft²·°F |
|---|---|
| 394.5 W/m²·K | 69.4755 |
| 399.5 W/m²·K | 70.3561 |
| 404.5 W/m²·K | 71.2366 |
| 409.5 | 72.1172 |
| 414.5 W/m²·K | 72.9977 |
| 419.5 W/m²·K | 73.8783 |
| 424.5 W/m²·K | 74.7588 |
409.5 W/m²·K = 72.1172 BTU/hr·ft²·°F
1 W/(m²·K) = 0.176110 BTU/(hr·ft²·°F) · 1 BTU/(hr·ft²·°F) = 5.67826 W/(m²·K)