638.5 W/m²·K to BTU/hr·ft²·°F

638.5 W/m²·K = 112.4464 BTU/hr·ft²·°F

W/m²·KBTU/hr·ft²·°F
623.5 W/m²·K109.8048
628.5 W/m²·K110.6853
633.5 W/m²·K111.5659
638.5112.4464
643.5 W/m²·K113.327
648.5 W/m²·K114.2075
653.5 W/m²·K115.0881

638.5 W/m²·K = 112.4464 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)