Liter per Hour to Gallon (US) per Minute (LPH to GPM)
Convert LPH to GPM — Flow Rate converter
One liter per hour equals 0.0044028675 GPM, so to convert liters per hour to gallons (US) per minute you multiply the value by 0.0044028675. A liter per hour is smaller than a gallon (US) per minute — going the other way, 1 GPM = 227.124707 LPH. For example, 10 LPH = 0.04402868 GPM and 50 LPH = 0.22014338 GPM.
1 LPH = 0.0044028675 GPM
Liter per Hour to Gallon (US) per Minute formula
1 Liter per Hour = 0.0044028675 GPM
Worked examples
- 25 LPH = 0.11007169 GPM
- 100 LPH = 0.44028675 GPM
Liter per Hour to Gallon (US) per Minute conversion table
| Liter per Hour (LPH) | Gallon (US) per Minute (GPM) |
|---|---|
| 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 LPH = 0.0044028675 GPM.
Frequently asked questions
How many gallons (US) per minute are in one liter per hour?
One liter per hour equals 0.0044028675 gallons (US) per minute (GPM).
How many liters per hour are in one gallon (US) per minute?
One gallon (US) per minute equals 227.124707 liters per hour (LPH).
How do you convert liters per hour to gallons (US) per minute?
1 Liter per Hour = 0.0044028675 GPM. Use the calculator above for any value.
What is 5 LPH in GPM?
5 LPH = 0.02201434 GPM.
What is 100 LPH in GPM?
100 LPH = 0.44028675 GPM.
What is 10 LPH in GPM?
10 LPH = 0.04402868 GPM.
What is 20 LPH in GPM?
20 LPH = 0.08805735 GPM.
What is 50 LPH in GPM?
50 LPH = 0.22014338 GPM.
What is 500 LPH in GPM?
500 LPH = 2.201434 GPM.
Is a liter per hour bigger than a gallon (US) per minute?
No. A liter per hour is smaller — one liter per hour equals 0.0044028675 gallons (US) per minute, while one gallon (US) per minute equals 227.124707 liters per hour.