Liter per Minute to Gallon (US) per Second (LPM to gal/s)
Convert LPM to gal/s — Flow Rate converter
One liter per minute equals 0.0044028675 gal/s, so to convert liters per minute to gallons (US) per second you multiply the value by 0.0044028675. A liter per minute is smaller than a gallon (US) per second — going the other way, 1 gal/s = 227.124707 LPM. For example, 10 LPM = 0.04402868 gal/s and 50 LPM = 0.22014338 gal/s.
1 LPM = 0.0044028675 gal/s
Liter per Minute to Gallon (US) per Second formula
1 Liter per Minute = 0.0044028675 gal/s
Worked examples
- 25 LPM = 0.11007169 gal/s
- 100 LPM = 0.44028675 gal/s
Liter per Minute to Gallon (US) per Second conversion table
| Liter per Minute (LPM) | Gallon (US) per Second (gal/s) |
|---|---|
| 1 | 0.0044028675 |
| 2 | 0.0088057351 |
| 3 | 0.0132086 |
| 5 | 0.02201434 |
| 8 | 0.03522294 |
| 10 | 0.04402868 |
| 12 | 0.05283441 |
| 15 | 0.06604301 |
| 20 | 0.08805735 |
| 25 | 0.11007169 |
| 50 | 0.22014338 |
| 100 | 0.44028675 |
| 250 | 1.100717 |
| 500 | 2.201434 |
| 1000 | 4.402868 |
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 LPM = 0.0044028675 gal/s.
Frequently asked questions
How many gallons (US) per second are in one liter per minute?
One liter per minute equals 0.0044028675 gallons (US) per second (gal/s).
How many liters per minute are in one gallon (US) per second?
One gallon (US) per second equals 227.124707 liters per minute (LPM).
How do you convert liters per minute to gallons (US) per second?
1 Liter per Minute = 0.0044028675 gal/s. Use the calculator above for any value.
What is 5 LPM in gal/s?
5 LPM = 0.02201434 gal/s.
What is 100 LPM in gal/s?
100 LPM = 0.44028675 gal/s.
What is 10 LPM in gal/s?
10 LPM = 0.04402868 gal/s.
What is 20 LPM in gal/s?
20 LPM = 0.08805735 gal/s.
What is 50 LPM in gal/s?
50 LPM = 0.22014338 gal/s.
What is 500 LPM in gal/s?
500 LPM = 2.201434 gal/s.
Is a liter per minute bigger than a gallon (US) per second?
No. A liter per minute is smaller — one liter per minute equals 0.0044028675 gallons (US) per second, while one gallon (US) per second equals 227.124707 liters per minute.