Enter the pounds per hour (lb/hr) and the density of the fluid into the calculator to determine the gallons per minute (GPM).

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## LB/Hr to GPM Formula

The following formula is used to calculate the GPM from lb/hr.

GPM = lb/hr / D / 60

- Where GPM is the gallons per minute
- lb/hr is the pounds per hour
- D is the density of the fluid (lbs/gallon)

To calculate the GPM from lb/hr, divide the pounds per hour by the density of the fluid in pounds per gallon, then divide that result by 60.

## LB/Hr to GPM Conversion

Converting lb/hr to GPM is the conversion of a weight per time to a volume per time. As a result, to convert between the two, the weight must be divided by the density to get volume, and then the hours must be divided by 60 to get minutes.

## How to conver lb/hr to gpm?

Example Problem:

The following example problem outlines how to calculate gpm from lb/hr.

First, determine the lb/hr. In this example, the pounds per hour is 5000.

Next, determine the density of the fluid. In this case, the fluid is water, so the density is 8.345 lbs/gallon.

Finally, calculate the gpm using the formula above:

GPM = lb/hr / D / 60

GPM = 5000 / 8.345 / 60

GPM = 9.986