489 W/m²·K = 86.1179 BTU/hr·ft²·°F
| W/m²·K | BTU/hr·ft²·°F |
|---|---|
| 474 W/m²·K | 83.4763 |
| 479 W/m²·K | 84.3568 |
| 484 W/m²·K | 85.2374 |
| 489 | 86.1179 |
| 494 W/m²·K | 86.9985 |
| 499 W/m²·K | 87.879 |
| 504 W/m²·K | 88.7596 |
489 W/m²·K = 86.1179 BTU/hr·ft²·°F
1 W/(m²·K) = 0.176110 BTU/(hr·ft²·°F) · 1 BTU/(hr·ft²·°F) = 5.67826 W/(m²·K)