256 W/m²·K = 45.0842 BTU/hr·ft²·°F
| W/m²·K | BTU/hr·ft²·°F |
|---|---|
| 241 W/m²·K | 42.4426 |
| 246 W/m²·K | 43.3231 |
| 251 W/m²·K | 44.2037 |
| 256 | 45.0842 |
| 261 W/m²·K | 45.9648 |
| 266 W/m²·K | 46.8453 |
| 271 W/m²·K | 47.7259 |
256 W/m²·K = 45.0842 BTU/hr·ft²·°F
1 W/(m²·K) = 0.176110 BTU/(hr·ft²·°F) · 1 BTU/(hr·ft²·°F) = 5.67826 W/(m²·K)