257.5 W/m²·K = 45.3484 BTU/hr·ft²·°F
| W/m²·K | BTU/hr·ft²·°F |
|---|---|
| 242.5 W/m²·K | 42.7067 |
| 247.5 W/m²·K | 43.5873 |
| 252.5 W/m²·K | 44.4678 |
| 257.5 | 45.3484 |
| 262.5 W/m²·K | 46.229 |
| 267.5 W/m²·K | 47.1095 |
| 272.5 W/m²·K | 47.9901 |
257.5 W/m²·K = 45.3484 BTU/hr·ft²·°F
1 W/(m²·K) = 0.176110 BTU/(hr·ft²·°F) · 1 BTU/(hr·ft²·°F) = 5.67826 W/(m²·K)