668 W/m²·K = 117.6417 BTU/hr·ft²·°F
| W/m²·K | BTU/hr·ft²·°F |
|---|---|
| 653 W/m²·K | 115 |
| 658 W/m²·K | 115.8806 |
| 663 W/m²·K | 116.7611 |
| 668 | 117.6417 |
| 673 W/m²·K | 118.5222 |
| 678 W/m²·K | 119.4028 |
| 683 W/m²·K | 120.2833 |
668 W/m²·K = 117.6417 BTU/hr·ft²·°F
1 W/(m²·K) = 0.176110 BTU/(hr·ft²·°F) · 1 BTU/(hr·ft²·°F) = 5.67826 W/(m²·K)