CFS to GPM Calculator

What is GPM from CFS and Why Should You Care?

Have you ever wondered how to calculate how many gallons of water are flowing through your system per minute based on a cubic feet per second measurement? Whether you're working in water management, environmental sciences, or just curious about water dynamics, understanding GPM (Gallons Per Minute) from CFS (Cubic Feet per Second) is a handy skill to have. It allows you to convert the measurement of water flow from one unit to another seamlessly. This information can be critical for tasks as varied as designing irrigation systems to setting up aquariums.

How to Calculate GPM from CFS

Converting CFS to GPM is straightforward once you know the conversion factors.

The Formula

[\text{GPM} = \text{CFS} \times 7.481 \times 60]

Where:

• GPM is the flow rate in gallons per minute
• CFS is the flow rate in cubic feet per second
• 7.481 converts cubic feet to gallons
• 60 converts seconds to minutes

This formula multiplies your CFS value by two constants: 7.481 and 60, to convert it into GPM.

Calculation Example

Suppose you have a flow rate of 25 cubic feet per second (CFS) and you want to know how many gallons of water flow per minute.

Using the formula:

[\text{GPM} = \text{CFS} \times 7.481 \times 60]

First, replace CFS with 25:

[\text{GPM} = 25 \times 7.481 \times 60]

Now, do the math:

[\text{GPM} = 25 \times 7.481 = 187.025]

Then:

[\text{GPM} = 187.025 \times 60 = 11,221.5]

So, with a flow rate of 25 CFS, you get approximately 11,221.5 GPM.

Metric Conversion

For metric conversions, to convert cubic feet per second to liters per minute (LPM), use:

[\text{LPM} = \text{CFS} \times 28.3168 \times 60]

Where:

• LPM is the flow rate in liters per minute
• CFS is the flow rate in cubic feet per second

Conversion Table

By converting these measurements, you gain a clearer picture of water flow that can help in engineering projects, scientific studies, and everyday life.