644.5 BTU/hr·ft²·°F to W/m²·K

644.5 BTU/hr·ft²·°F = 3,659.639 W/m²·K

BTU/hr·ft²·°FW/m²·K
629.5 BTU/hr·ft²·°F3,574.465
634.5 BTU/hr·ft²·°F3,602.856
639.5 BTU/hr·ft²·°F3,631.247
644.53,659.639
649.5 BTU/hr·ft²·°F3,688.03
654.5 BTU/hr·ft²·°F3,716.421
659.5 BTU/hr·ft²·°F3,744.812

644.5 BTU/hr·ft²·°F = 3,659.639 W/m²·K

Formula

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