646.5 BTU/hr·ft²·°F to W/m²·K

646.5 BTU/hr·ft²·°F = 3,670.995 W/m²·K

BTU/hr·ft²·°FW/m²·K
631.5 BTU/hr·ft²·°F3,585.821
636.5 BTU/hr·ft²·°F3,614.212
641.5 BTU/hr·ft²·°F3,642.604
646.53,670.995
651.5 BTU/hr·ft²·°F3,699.386
656.5 BTU/hr·ft²·°F3,727.778
661.5 BTU/hr·ft²·°F3,756.169

646.5 BTU/hr·ft²·°F = 3,670.995 W/m²·K

Formula

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