Liter per Minute to Gallon (US) per Hour (LPM to gal/h)
Convert LPM to gal/h — Flow Rate converter
One liter per minute equals 15.850323 gal/h, so to convert liters per minute to gallons (US) per hour you multiply the value by 15.850323. A liter per minute is larger than a gallon (US) per hour — going the other way, 1 gal/h = 0.0630902 LPM. For example, 10 LPM = 158.503231 gal/h and 50 LPM = 792.516157 gal/h.
1 LPM = 15.850323 gal/h
Liter per Minute to Gallon (US) per Hour formula
1 Liter per Minute = 15.850323 gal/h
Worked examples
- 25 LPM = 396.258079 gal/h
- 100 LPM = 1585.03 gal/h
Liter per Minute to Gallon (US) per Hour conversion table
| Liter per Minute (LPM) | Gallon (US) per Hour (gal/h) |
|---|---|
| 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 LPM = 15.850323 gal/h.
Frequently asked questions
How many gallons (US) per hour are in one liter per minute?
One liter per minute equals 15.850323 gallons (US) per hour (gal/h).
How many liters per minute are in one gallon (US) per hour?
One gallon (US) per hour equals 0.0630902 liters per minute (LPM).
How do you convert liters per minute to gallons (US) per hour?
1 Liter per Minute = 15.850323 gal/h. Use the calculator above for any value.
What is 5 LPM in gal/h?
5 LPM = 79.251616 gal/h.
What is 100 LPM in gal/h?
100 LPM = 1585.03 gal/h.
What is 10 LPM in gal/h?
10 LPM = 158.503231 gal/h.
What is 20 LPM in gal/h?
20 LPM = 317.006463 gal/h.
What is 50 LPM in gal/h?
50 LPM = 792.516157 gal/h.
What is 500 LPM in gal/h?
500 LPM = 7925.16 gal/h.
Is a liter per minute bigger than a gallon (US) per hour?
Yes. A liter per minute is larger — one liter per minute equals 15.850323 gallons (US) per hour (gal/h).