Cubic Meter per Second to Gallon (US) per Minute (m³/s to GPM)
Convert m³/s to GPM — Flow Rate converter
Also written as m3/s to GPM.
One cubic meter per second equals 15850.32 GPM, so to convert cubic meters per second to gallons (US) per minute you multiply the value by 15850.32. A cubic meter per second is larger than a gallon (US) per minute — going the other way, 1 GPM = 0.0000630902 m³/s. For example, 10 m³/s = 158503.23 GPM and 50 m³/s = 792516.16 GPM.
1 m³/s = 15850.32 GPM
Cubic Meter per Second to Gallon (US) per Minute formula
1 Cubic Meter per Second = 15850.32 GPM
Worked examples
- 25 m³/s = 396258.08 GPM
- 100 m³/s = 1585032.31 GPM
Cubic Meter per Second to Gallon (US) per Minute conversion table
| Cubic Meter per Second (m³/s) | Gallon (US) per Minute (GPM) |
|---|---|
| 1 | 15850.32 |
| 2 | 31700.65 |
| 3 | 47550.97 |
| 5 | 79251.62 |
| 8 | 126802.59 |
| 10 | 158503.23 |
| 12 | 190203.88 |
| 15 | 237754.85 |
| 20 | 317006.46 |
| 25 | 396258.08 |
| 50 | 792516.16 |
| 100 | 1585032.31 |
| 250 | 3962580.79 |
| 500 | 7925161.57 |
| 1000 | 15850323.14 |
Which gallon, and which trade
The single most expensive mistake in flow conversion is the gallon. A US liquid gallon is 3.785411784 litres; an imperial gallon is 4.54609 litres. US GPM and imperial GPM differ by about 20%, and pump datasheets frequently do not say which one they mean. Check the manufacturer's country of origin before trusting a GPM figure.
Different trades default to different units for the same physical quantity: HVAC and compressed air work in CFM, plumbing and pumps in GPM or LPM, and process and water engineering in m³/h or L/s. A specification that mixes them is usually quoting different equipment, not different flows. On this page, 1 m³/s = 15850.32 GPM.
Frequently asked questions
How many gallons (US) per minute are in one cubic meter per second?
One cubic meter per second equals 15850.32 gallons (US) per minute (GPM).
How many cubic meters per second are in one gallon (US) per minute?
One gallon (US) per minute equals 0.0000630902 cubic meters per second (m³/s).
How do you convert cubic meters per second to gallons (US) per minute?
1 Cubic Meter per Second = 15850.32 GPM. Use the calculator above for any value.
What is 5 m³/s in GPM?
5 m³/s = 79251.62 GPM.
What is 100 m³/s in GPM?
100 m³/s = 1585032.31 GPM.
What is 10 m³/s in GPM?
10 m³/s = 158503.23 GPM.
What is 20 m³/s in GPM?
20 m³/s = 317006.46 GPM.
What is 50 m³/s in GPM?
50 m³/s = 792516.16 GPM.
What is 500 m³/s in GPM?
500 m³/s = 7925161.57 GPM.
Is a cubic meter per second bigger than a gallon (US) per minute?
Yes. A cubic meter per second is larger — one cubic meter per second equals 15850.32 gallons (US) per minute (GPM).