686.5 W/m²·K to BTU/hr·ft²·°F

686.5 W/m²·K = 120.8997 BTU/hr·ft²·°F

W/m²·KBTU/hr·ft²·°F
671.5 W/m²·K118.2581
676.5 W/m²·K119.1386
681.5 W/m²·K120.0192
686.5120.8997
691.5 W/m²·K121.7803
696.5 W/m²·K122.6608
701.5 W/m²·K123.5414

686.5 W/m²·K = 120.8997 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)