Liter per Hour to Gallon (US) per Second (LPH to gal/s)
Convert LPH to gal/s — Flow Rate converter
One liter per hour equals 0.0000733811 gal/s, so to convert liters per hour to gallons (US) per second you multiply the value by 0.0000733811. A liter per hour is smaller than a gallon (US) per second — going the other way, 1 gal/s = 13627.48 LPH. For example, 10 LPH = 0.0007338113 gal/s and 50 LPH = 0.0036690563 gal/s.
1 LPH = 0.0000733811 gal/s
Liter per Hour to Gallon (US) per Second formula
1 Liter per Hour = 0.0000733811 gal/s
Worked examples
- 25 LPH = 0.0018345281 gal/s
- 100 LPH = 0.0073381126 gal/s
Liter per Hour to Gallon (US) per Second conversion table
| Liter per Hour (LPH) | Gallon (US) per Second (gal/s) |
|---|---|
| 1 | 0.0000733811 |
| 2 | 0.0001467623 |
| 3 | 0.0002201434 |
| 5 | 0.0003669056 |
| 8 | 0.000587049 |
| 10 | 0.0007338113 |
| 12 | 0.0008805735 |
| 15 | 0.0011007169 |
| 20 | 0.0014676225 |
| 25 | 0.0018345281 |
| 50 | 0.0036690563 |
| 100 | 0.0073381126 |
| 250 | 0.01834528 |
| 500 | 0.03669056 |
| 1000 | 0.07338113 |
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 = 0.0000733811 gal/s.
Frequently asked questions
How many gallons (US) per second are in one liter per hour?
One liter per hour equals 0.0000733811 gallons (US) per second (gal/s).
How many liters per hour are in one gallon (US) per second?
One gallon (US) per second equals 13627.48 liters per hour (LPH).
How do you convert liters per hour to gallons (US) per second?
1 Liter per Hour = 0.0000733811 gal/s. Use the calculator above for any value.
What is 5 LPH in gal/s?
5 LPH = 0.0003669056 gal/s.
What is 100 LPH in gal/s?
100 LPH = 0.0073381126 gal/s.
What is 10 LPH in gal/s?
10 LPH = 0.0007338113 gal/s.
What is 20 LPH in gal/s?
20 LPH = 0.0014676225 gal/s.
What is 50 LPH in gal/s?
50 LPH = 0.0036690563 gal/s.
What is 500 LPH in gal/s?
500 LPH = 0.03669056 gal/s.
Is a liter per hour bigger than a gallon (US) per second?
No. A liter per hour is smaller — one liter per hour equals 0.0000733811 gallons (US) per second, while one gallon (US) per second equals 13627.48 liters per hour.