644 BTU/hr·ft²·°F to W/m²·K

644 BTU/hr·ft²·°F = 3,656.799 W/m²·K

BTU/hr·ft²·°FW/m²·K
629 BTU/hr·ft²·°F3,571.626
634 BTU/hr·ft²·°F3,600.017
639 BTU/hr·ft²·°F3,628.408
6443,656.799
649 BTU/hr·ft²·°F3,685.191
654 BTU/hr·ft²·°F3,713.582
659 BTU/hr·ft²·°F3,741.973

644 BTU/hr·ft²·°F = 3,656.799 W/m²·K

Formula

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