389.5 W/m²·K to BTU/hr·ft²·°F

389.5 W/m²·K = 68.595 BTU/hr·ft²·°F

W/m²·KBTU/hr·ft²·°F
374.5 W/m²·K65.9533
379.5 W/m²·K66.8339
384.5 W/m²·K67.7144
389.568.595
394.5 W/m²·K69.4755
399.5 W/m²·K70.3561
404.5 W/m²·K71.2366

389.5 W/m²·K = 68.595 BTU/hr·ft²·°F

Formula

1 W/(m²·K) = 0.176110 BTU/(hr·ft²·°F) · 1 BTU/(hr·ft²·°F) = 5.67826 W/(m²·K)