Gallon (US) per Second to Cubic Meter per Hour (gal/s to m³/h)
Convert gal/s to m³/h — Flow Rate converter
Also written as gal/s to m3/h.
One gallon (US) per second equals 13.627482 m³/h, so to convert gallons (US) per second to cubic meters per hour you multiply the value by 13.627482. A gallon (US) per second is larger than a cubic meter per hour — going the other way, 1 m³/h = 0.07338113 gal/s. For example, 10 gal/s = 136.274824 m³/h and 50 gal/s = 681.374121 m³/h.
1 gal/s = 13.627482 m³/h
Gallon (US) per Second to Cubic Meter per Hour formula
1 Gallon (US) per Second = 13.627482 m³/h
Worked examples
- 25 gal/s = 340.687061 m³/h
- 100 gal/s = 1362.75 m³/h
Gallon (US) per Second to Cubic Meter per Hour conversion table
| Gallon (US) per Second (gal/s) | Cubic Meter per Hour (m³/h) |
|---|---|
| 1 | 13.627482 |
| 2 | 27.254965 |
| 3 | 40.882447 |
| 5 | 68.137412 |
| 8 | 109.019859 |
| 10 | 136.274824 |
| 12 | 163.529789 |
| 15 | 204.412236 |
| 20 | 272.549648 |
| 25 | 340.687061 |
| 50 | 681.374121 |
| 100 | 1362.75 |
| 250 | 3406.87 |
| 500 | 6813.74 |
| 1000 | 13627.48 |
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 gal/s = 13.627482 m³/h.
Frequently asked questions
How many cubic meters per hour are in one gallon (US) per second?
One gallon (US) per second equals 13.627482 cubic meters per hour (m³/h).
How many gallons (US) per second are in one cubic meter per hour?
One cubic meter per hour equals 0.07338113 gallons (US) per second (gal/s).
How do you convert gallons (US) per second to cubic meters per hour?
1 Gallon (US) per Second = 13.627482 m³/h. Use the calculator above for any value.
What is 5 gal/s in m³/h?
5 gal/s = 68.137412 m³/h.
What is 100 gal/s in m³/h?
100 gal/s = 1362.75 m³/h.
What is 10 gal/s in m³/h?
10 gal/s = 136.274824 m³/h.
What is 20 gal/s in m³/h?
20 gal/s = 272.549648 m³/h.
What is 50 gal/s in m³/h?
50 gal/s = 681.374121 m³/h.
What is 500 gal/s in m³/h?
500 gal/s = 6813.74 m³/h.
Is a gallon (US) per second bigger than a cubic meter per hour?
Yes. A gallon (US) per second is larger — one gallon (US) per second equals 13.627482 cubic meters per hour (m³/h).