646 W/m²·K = 113.7672 BTU/hr·ft²·°F
| W/m²·K | BTU/hr·ft²·°F |
|---|---|
| 631 W/m²·K | 111.1256 |
| 636 W/m²·K | 112.0061 |
| 641 W/m²·K | 112.8867 |
| 646 | 113.7672 |
| 651 W/m²·K | 114.6478 |
| 656 W/m²·K | 115.5283 |
| 661 W/m²·K | 116.4089 |
646 W/m²·K = 113.7672 BTU/hr·ft²·°F
1 W/(m²·K) = 0.176110 BTU/(hr·ft²·°F) · 1 BTU/(hr·ft²·°F) = 5.67826 W/(m²·K)