639 BTU/hr·ft²·°F = 3,628.408 W/m²·K
| BTU/hr·ft²·°F | W/m²·K |
|---|---|
| 624 BTU/hr·ft²·°F | 3,543.234 |
| 629 BTU/hr·ft²·°F | 3,571.626 |
| 634 BTU/hr·ft²·°F | 3,600.017 |
| 639 | 3,628.408 |
| 644 BTU/hr·ft²·°F | 3,656.799 |
| 649 BTU/hr·ft²·°F | 3,685.191 |
| 654 BTU/hr·ft²·°F | 3,713.582 |
639 BTU/hr·ft²·°F = 3,628.408 W/m²·K
1 W/(m²·K) = 0.176110 BTU/(hr·ft²·°F) · 1 BTU/(hr·ft²·°F) = 5.67826 W/(m²·K)