684 W/m²·K = 120.4594 BTU/hr·ft²·°F
| W/m²·K | BTU/hr·ft²·°F |
|---|---|
| 669 W/m²·K | 117.8178 |
| 674 W/m²·K | 118.6983 |
| 679 W/m²·K | 119.5789 |
| 684 | 120.4594 |
| 689 W/m²·K | 121.34 |
| 694 W/m²·K | 122.2205 |
| 699 W/m²·K | 123.1011 |
684 W/m²·K = 120.4594 BTU/hr·ft²·°F
1 W/(m²·K) = 0.176110 BTU/(hr·ft²·°F) · 1 BTU/(hr·ft²·°F) = 5.67826 W/(m²·K)