221.5 W/m²·K = 39.0084 BTU/hr·ft²·°F
| W/m²·K | BTU/hr·ft²·°F |
|---|---|
| 206.5 W/m²·K | 36.3668 |
| 211.5 W/m²·K | 37.2473 |
| 216.5 W/m²·K | 38.1279 |
| 221.5 | 39.0084 |
| 226.5 W/m²·K | 39.889 |
| 231.5 W/m²·K | 40.7695 |
| 236.5 W/m²·K | 41.6501 |
221.5 W/m²·K = 39.0084 BTU/hr·ft²·°F
1 W/(m²·K) = 0.176110 BTU/(hr·ft²·°F) · 1 BTU/(hr·ft²·°F) = 5.67826 W/(m²·K)