Gallon (US) per Hour to Liter per Second (gal/h to LPS)
Convert gal/h to LPS — Flow Rate converter
One gallon (US) per hour equals 0.0010515033 LPS, so to convert gallons (US) per hour to liters per second you multiply the value by 0.0010515033. A gallon (US) per hour is smaller than a liter per second — going the other way, 1 LPS = 951.019389 gal/h. For example, 10 gal/h = 0.01051503 LPS and 50 gal/h = 0.05257516 LPS.
1 gal/h = 0.0010515033 LPS
Gallon (US) per Hour to Liter per Second formula
1 Gallon (US) per Hour = 0.0010515033 LPS
Worked examples
- 25 gal/h = 0.02628758 LPS
- 100 gal/h = 0.10515033 LPS
Gallon (US) per Hour to Liter per Second conversion table
| Gallon (US) per Hour (gal/h) | Liter per Second (LPS) |
|---|---|
| 1 | 0.0010515033 |
| 2 | 0.0021030065 |
| 3 | 0.0031545098 |
| 5 | 0.0052575164 |
| 8 | 0.0084120262 |
| 10 | 0.01051503 |
| 12 | 0.01261804 |
| 15 | 0.01577255 |
| 20 | 0.02103007 |
| 25 | 0.02628758 |
| 50 | 0.05257516 |
| 100 | 0.10515033 |
| 250 | 0.26287582 |
| 500 | 0.52575164 |
| 1000 | 1.051503 |
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 gal/h = 0.0010515033 LPS.
Frequently asked questions
How many liters per second are in one gallon (US) per hour?
One gallon (US) per hour equals 0.0010515033 liters per second (LPS).
How many gallons (US) per hour are in one liter per second?
One liter per second equals 951.019389 gallons (US) per hour (gal/h).
How do you convert gallons (US) per hour to liters per second?
1 Gallon (US) per Hour = 0.0010515033 LPS. Use the calculator above for any value.
What is 5 gal/h in LPS?
5 gal/h = 0.0052575164 LPS.
What is 100 gal/h in LPS?
100 gal/h = 0.10515033 LPS.
What is 10 gal/h in LPS?
10 gal/h = 0.01051503 LPS.
What is 20 gal/h in LPS?
20 gal/h = 0.02103007 LPS.
What is 50 gal/h in LPS?
50 gal/h = 0.05257516 LPS.
What is 500 gal/h in LPS?
500 gal/h = 0.52575164 LPS.
Is a gallon (US) per hour bigger than a liter per second?
No. A gallon (US) per hour is smaller — one gallon (US) per hour equals 0.0010515033 liters per second, while one liter per second equals 951.019389 gallons (US) per hour.