Liter per Second to Gallon (US) per Minute (LPS to GPM)
Convert LPS to GPM — Flow Rate converter
One liter per second equals 15.850323 GPM, so to convert liters per second to gallons (US) per minute you multiply the value by 15.850323. A liter per second is larger than a gallon (US) per minute — going the other way, 1 GPM = 0.0630902 LPS. For example, 10 LPS = 158.503231 GPM and 50 LPS = 792.516157 GPM.
1 LPS = 15.850323 GPM
Liter per Second to Gallon (US) per Minute formula
1 Liter per Second = 15.850323 GPM
Worked examples
- 25 LPS = 396.258079 GPM
- 100 LPS = 1585.03 GPM
Liter per Second to Gallon (US) per Minute conversion table
| Liter per Second (LPS) | Gallon (US) per Minute (GPM) |
|---|---|
| 1 | 15.850323 |
| 2 | 31.700646 |
| 3 | 47.550969 |
| 5 | 79.251616 |
| 8 | 126.802585 |
| 10 | 158.503231 |
| 12 | 190.203878 |
| 15 | 237.754847 |
| 20 | 317.006463 |
| 25 | 396.258079 |
| 50 | 792.516157 |
| 100 | 1585.03 |
| 250 | 3962.58 |
| 500 | 7925.16 |
| 1000 | 15850.32 |
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 LPS = 15.850323 GPM.
Frequently asked questions
How many gallons (US) per minute are in one liter per second?
One liter per second equals 15.850323 gallons (US) per minute (GPM).
How many liters per second are in one gallon (US) per minute?
One gallon (US) per minute equals 0.0630902 liters per second (LPS).
How do you convert liters per second to gallons (US) per minute?
1 Liter per Second = 15.850323 GPM. Use the calculator above for any value.
What is 5 LPS in GPM?
5 LPS = 79.251616 GPM.
What is 100 LPS in GPM?
100 LPS = 1585.03 GPM.
What is 10 LPS in GPM?
10 LPS = 158.503231 GPM.
What is 20 LPS in GPM?
20 LPS = 317.006463 GPM.
What is 50 LPS in GPM?
50 LPS = 792.516157 GPM.
What is 500 LPS in GPM?
500 LPS = 7925.16 GPM.
Is a liter per second bigger than a gallon (US) per minute?
Yes. A liter per second is larger — one liter per second equals 15.850323 gallons (US) per minute (GPM).