640 cfm to m³/h

640 cfm = 1,087.366 m³/h

cfmm³/h
625 cfm1,061.881
630 cfm1,070.376
635 cfm1,078.871
6401,087.366
645 cfm1,095.861
650 cfm1,104.356
655 cfm1,112.851

640 cfm = 1,087.366 m³/h

Formula

1 L/s = 0.264172 gal/min · 1 m³/h = 0.588578 cfm · 1 cfm = 1.69901 m³/h