Liter per Hour to Liter per Second (LPH to LPS)
Convert LPH to LPS — Flow Rate converter
One liter per hour equals 0.0002777778 LPS, so to convert liters per hour to liters per second you multiply the value by 0.0002777778. A liter per hour is smaller than a liter per second — going the other way, 1 LPS = 3600 LPH. For example, 10 LPH = 0.0027777778 LPS and 50 LPH = 0.01388889 LPS.
1 LPH = 0.0002777778 LPS
Liter per Hour to Liter per Second formula
1 Liter per Hour = 0.0002777778 LPS
Worked examples
- 25 LPH = 0.0069444444 LPS
- 100 LPH = 0.02777778 LPS
Liter per Hour to Liter per Second conversion table
| Liter per Hour (LPH) | Liter per Second (LPS) |
|---|---|
| 1 | 0.0002777778 |
| 2 | 0.0005555556 |
| 3 | 0.0008333333 |
| 5 | 0.0013888889 |
| 8 | 0.0022222222 |
| 10 | 0.0027777778 |
| 12 | 0.0033333333 |
| 15 | 0.0041666667 |
| 20 | 0.0055555556 |
| 25 | 0.0069444444 |
| 50 | 0.01388889 |
| 100 | 0.02777778 |
| 250 | 0.06944444 |
| 500 | 0.13888889 |
| 1000 | 0.27777778 |
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 = 0.0002777778 LPS.
Frequently asked questions
How many liters per second are in one liter per hour?
One liter per hour equals 0.0002777778 liters per second (LPS).
How many liters per hour are in one liter per second?
One liter per second equals 3600 liters per hour (LPH).
How do you convert liters per hour to liters per second?
1 Liter per Hour = 0.0002777778 LPS. Use the calculator above for any value.
What is 5 LPH in LPS?
5 LPH = 0.0013888889 LPS.
What is 100 LPH in LPS?
100 LPH = 0.02777778 LPS.
What is 10 LPH in LPS?
10 LPH = 0.0027777778 LPS.
What is 20 LPH in LPS?
20 LPH = 0.0055555556 LPS.
What is 50 LPH in LPS?
50 LPH = 0.01388889 LPS.
What is 500 LPH in LPS?
500 LPH = 0.13888889 LPS.
Is a liter per hour bigger than a liter per second?
No. A liter per hour is smaller — one liter per hour equals 0.0002777778 liters per second, while one liter per second equals 3600 liters per hour.