278 W/m²·K = 48.9587 BTU/hr·ft²·°F
| W/m²·K | BTU/hr·ft²·°F |
|---|---|
| 263 W/m²·K | 46.317 |
| 268 W/m²·K | 47.1976 |
| 273 W/m²·K | 48.0781 |
| 278 | 48.9587 |
| 283 W/m²·K | 49.8392 |
| 288 W/m²·K | 50.7198 |
| 293 W/m²·K | 51.6003 |
278 W/m²·K = 48.9587 BTU/hr·ft²·°F
1 W/(m²·K) = 0.176110 BTU/(hr·ft²·°F) · 1 BTU/(hr·ft²·°F) = 5.67826 W/(m²·K)