Cubic Meter per Second to Gallon (US) per Second (m³/s to gal/s)
Convert m³/s to gal/s — Flow Rate converter
Also written as m3/s to gal/s.
One cubic meter per second equals 264.172052 gal/s, so to convert cubic meters per second to gallons (US) per second you multiply the value by 264.172052. A cubic meter per second is larger than a gallon (US) per second — going the other way, 1 gal/s = 0.0037854118 m³/s. For example, 10 m³/s = 2641.72 gal/s and 50 m³/s = 13208.6 gal/s.
1 m³/s = 264.172052 gal/s
Cubic Meter per Second to Gallon (US) per Second formula
1 Cubic Meter per Second = 264.172052 gal/s
Worked examples
- 25 m³/s = 6604.3 gal/s
- 100 m³/s = 26417.21 gal/s
Cubic Meter per Second to Gallon (US) per Second conversion table
| Cubic Meter per Second (m³/s) | Gallon (US) per Second (gal/s) |
|---|---|
| 1 | 264.172052 |
| 2 | 528.344105 |
| 3 | 792.516157 |
| 5 | 1320.86 |
| 8 | 2113.38 |
| 10 | 2641.72 |
| 12 | 3170.06 |
| 15 | 3962.58 |
| 20 | 5283.44 |
| 25 | 6604.3 |
| 50 | 13208.6 |
| 100 | 26417.21 |
| 250 | 66043.01 |
| 500 | 132086.03 |
| 1000 | 264172.05 |
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 = 264.172052 gal/s.
Frequently asked questions
How many gallons (US) per second are in one cubic meter per second?
One cubic meter per second equals 264.172052 gallons (US) per second (gal/s).
How many cubic meters per second are in one gallon (US) per second?
One gallon (US) per second equals 0.0037854118 cubic meters per second (m³/s).
How do you convert cubic meters per second to gallons (US) per second?
1 Cubic Meter per Second = 264.172052 gal/s. Use the calculator above for any value.
What is 5 m³/s in gal/s?
5 m³/s = 1320.86 gal/s.
What is 100 m³/s in gal/s?
100 m³/s = 26417.21 gal/s.
What is 10 m³/s in gal/s?
10 m³/s = 2641.72 gal/s.
What is 20 m³/s in gal/s?
20 m³/s = 5283.44 gal/s.
What is 50 m³/s in gal/s?
50 m³/s = 13208.6 gal/s.
What is 500 m³/s in gal/s?
500 m³/s = 132086.03 gal/s.
Is a cubic meter per second bigger than a gallon (US) per second?
Yes. A cubic meter per second is larger — one cubic meter per second equals 264.172052 gallons (US) per second (gal/s).