649 W/m²·K = 114.2956 BTU/hr·ft²·°F
| W/m²·K | BTU/hr·ft²·°F |
|---|---|
| 634 W/m²·K | 111.6539 |
| 639 W/m²·K | 112.5345 |
| 644 W/m²·K | 113.415 |
| 649 | 114.2956 |
| 654 W/m²·K | 115.1761 |
| 659 W/m²·K | 116.0567 |
| 664 W/m²·K | 116.9372 |
649 W/m²·K = 114.2956 BTU/hr·ft²·°F
1 W/(m²·K) = 0.176110 BTU/(hr·ft²·°F) · 1 BTU/(hr·ft²·°F) = 5.67826 W/(m²·K)