Gallon (US) per Second to Cubic Meter per Day (gal/s to m³/d)
Convert gal/s to m³/d — Flow Rate converter
Also written as gal/s to m3/d.
One gallon (US) per second equals 327.059578 m³/d, so to convert gallons (US) per second to cubic meters per day you multiply the value by 327.059578. A gallon (US) per second is larger than a cubic meter per day — going the other way, 1 m³/d = 0.0030575469 gal/s. For example, 10 gal/s = 3270.6 m³/d and 50 gal/s = 16352.98 m³/d.
1 gal/s = 327.059578 m³/d
Gallon (US) per Second to Cubic Meter per Day formula
1 Gallon (US) per Second = 327.059578 m³/d
Worked examples
- 25 gal/s = 8176.49 m³/d
- 100 gal/s = 32705.96 m³/d
Gallon (US) per Second to Cubic Meter per Day conversion table
| Gallon (US) per Second (gal/s) | Cubic Meter per Day (m³/d) |
|---|---|
| 1 | 327.059578 |
| 2 | 654.119156 |
| 3 | 981.178734 |
| 5 | 1635.3 |
| 8 | 2616.48 |
| 10 | 3270.6 |
| 12 | 3924.71 |
| 15 | 4905.89 |
| 20 | 6541.19 |
| 25 | 8176.49 |
| 50 | 16352.98 |
| 100 | 32705.96 |
| 250 | 81764.89 |
| 500 | 163529.79 |
| 1000 | 327059.58 |
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 = 327.059578 m³/d.
Frequently asked questions
How many cubic meters per day are in one gallon (US) per second?
One gallon (US) per second equals 327.059578 cubic meters per day (m³/d).
How many gallons (US) per second are in one cubic meter per day?
One cubic meter per day equals 0.0030575469 gallons (US) per second (gal/s).
How do you convert gallons (US) per second to cubic meters per day?
1 Gallon (US) per Second = 327.059578 m³/d. Use the calculator above for any value.
What is 5 gal/s in m³/d?
5 gal/s = 1635.3 m³/d.
What is 100 gal/s in m³/d?
100 gal/s = 32705.96 m³/d.
What is 10 gal/s in m³/d?
10 gal/s = 3270.6 m³/d.
What is 20 gal/s in m³/d?
20 gal/s = 6541.19 m³/d.
What is 50 gal/s in m³/d?
50 gal/s = 16352.98 m³/d.
What is 500 gal/s in m³/d?
500 gal/s = 163529.79 m³/d.
Is a gallon (US) per second bigger than a cubic meter per day?
Yes. A gallon (US) per second is larger — one gallon (US) per second equals 327.059578 cubic meters per day (m³/d).