How many CFS are in a GPM?

How many CFS are in a GPM? A flow of one cfs is approximately equal to either 450 gpm, one acre-inch per hour, or two acre-feet per day (24 hours). How do you convert GPM to CFS? Conversion formulas Cubic feet per second , US gallon per minute (cfs, ft3/s, gpm): cfs= 448.8325660485*gpm. gpm= cfs/448.8325660485. … Continue reading How many CFS are in a GPM?