Convert GPM to CFS
Input the number of gallons per minute (us) you want to convert to cubic feet per second.
How to Convert Gallons per Minute (US) to Cubic Feet per Second
The gallon per minute (us) and cubic foot per second are both units of flow rate. 1 cubic foot per second equals 448.83040472 gallons per minute (us). This means to convert gallons per minute (us) to cubic feet per second, you divide by 448.83040472.
Formula
Step-by-Step Example
Convert 5 GPM to cubic feet per second:
We need to convert gallons per minute (us) to cubic feet per second
Since 1 CFS = 448.83040472 GPM, divide by 448.83040472
5 ÷ 448.83040472 = 0.0111400653
5 GPM = 0.0111400653 CFS
Gallon per Minute (US) to Cubic Foot per Second Conversion Table
Quick reference table for common gallon per minute (us) to cubic foot per second conversions. Click any value for detailed calculation.
| Gallons per Minute (US) (GPM) | Cubic Feet per Second (CFS) |
|---|---|
| 0.1 GPM | 0.0002228013 CFS |
| 0.5 GPM | 0.0011140065 CFS |
| 1 GPM | 0.0022280131 CFS |
| 2 GPM | 0.0044560261 CFS |
| 5 GPM | 0.0111400653 CFS |
| 10 GPM | 0.0222801305 CFS |
| 25 GPM | 0.0557003263 CFS |
| 50 GPM | 0.1114006526 CFS |
| 100 GPM | 0.2228013052 CFS |
About These Units
Gallon per Minute (US) (GPM)
US gallons per minute (GPM) is the standard American flow rate unit. Pool pump: 40-80 GPM. Fire hydrant: 500-1500 GPM. Bathroom faucet: 1.5-2.5 GPM. Showerhead (WaterSense): 2.0 GPM max. One GPM equals 3.785 liters per minute or 0.134 CFM.
Cubic Foot per Second (CFS)
Cubic feet per second (CFS or cusec) measures river flow, large pumps, and hydraulic systems. Colorado River: 15,000 CFS average. One CFS equals 448.8 GPM, 28.3 L/s, or 7.48 gallons per second. USGS river gauges report in CFS.
Frequently Asked Questions
How do I convert gallons per minute (us) to cubic feet per second?
To convert gallons per minute (us) to cubic feet per second, divide the value by 448.83040472. For example, 10 GPM = 0.0222801305 CFS.
How many cubic feet per second are in 1 gallon per minute (us)?
1 gallon per minute (us) equals 0.0022280131 cubic feet per second.
What is the formula for gallons per minute (us) to cubic feet per second?
The formula is: CFS = GPM ÷ 448.83040472.