680.5 W/m²·K = 119.8431 BTU/hr·ft²·°F
| W/m²·K | BTU/hr·ft²·°F |
|---|---|
| 665.5 W/m²·K | 117.2014 |
| 670.5 W/m²·K | 118.0819 |
| 675.5 W/m²·K | 118.9625 |
| 680.5 | 119.8431 |
| 685.5 W/m²·K | 120.7236 |
| 690.5 W/m²·K | 121.6042 |
| 695.5 W/m²·K | 122.4847 |
680.5 W/m²·K = 119.8431 BTU/hr·ft²·°F
1 W/(m²·K) = 0.176110 BTU/(hr·ft²·°F) · 1 BTU/(hr·ft²·°F) = 5.67826 W/(m²·K)