Liter per Second to Liter per Hour (LPS to LPH)
Convert LPS to LPH — Flow Rate converter
One liter per second equals 3600 LPH, so to convert liters per second to liters per hour you multiply the value by 3600. A liter per second is larger than a liter per hour — going the other way, 1 LPH = 0.0002777778 LPS. For example, 10 LPS = 36000 LPH and 50 LPS = 180000 LPH.
1 LPS = 3600 LPH
Liter per Second to Liter per Hour formula
1 Liter per Second = 3600 LPH
Worked examples
- 25 LPS = 90000 LPH
- 100 LPS = 360000 LPH
Liter per Second to Liter per Hour conversion table
| Liter per Second (LPS) | Liter per Hour (LPH) |
|---|---|
| 1 | 3600 |
| 2 | 7200 |
| 3 | 10800 |
| 5 | 18000 |
| 8 | 28800 |
| 10 | 36000 |
| 12 | 43200 |
| 15 | 54000 |
| 20 | 72000 |
| 25 | 90000 |
| 50 | 180000 |
| 100 | 360000 |
| 250 | 900000 |
| 500 | 1800000 |
| 1000 | 3600000 |
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 LPS = 3600 LPH.
Frequently asked questions
How many liters per hour are in one liter per second?
One liter per second equals 3600 liters per hour (LPH).
How many liters per second are in one liter per hour?
One liter per hour equals 0.0002777778 liters per second (LPS).
How do you convert liters per second to liters per hour?
1 Liter per Second = 3600 LPH. Use the calculator above for any value.
What is 5 LPS in LPH?
5 LPS = 18000 LPH.
What is 100 LPS in LPH?
100 LPS = 360000 LPH.
What is 10 LPS in LPH?
10 LPS = 36000 LPH.
What is 20 LPS in LPH?
20 LPS = 72000 LPH.
What is 50 LPS in LPH?
50 LPS = 180000 LPH.
What is 500 LPS in LPH?
500 LPS = 1800000 LPH.
Is a liter per second bigger than a liter per hour?
Yes. A liter per second is larger — one liter per second equals 3600 liters per hour (LPH).