Liter per Hour to Cubic Meter per Second (LPH to m³/s)
Convert LPH to m³/s — Flow Rate converter
Also written as LPH to m3/s.
One liter per hour equals 2.777778e-7 m³/s, so to convert liters per hour to cubic meters per second you multiply the value by 2.777778e-7. A liter per hour is smaller than a cubic meter per second — going the other way, 1 m³/s = 3600000 LPH. For example, 10 LPH = 0.0000027778 m³/s and 50 LPH = 0.0000138889 m³/s.
1 LPH = 2.777778e-7 m³/s
Liter per Hour to Cubic Meter per Second formula
1 Liter per Hour = 2.777778e-7 m³/s
Worked examples
- 25 LPH = 0.0000069444 m³/s
- 100 LPH = 0.0000277778 m³/s
Liter per Hour to Cubic Meter per Second conversion table
| Liter per Hour (LPH) | Cubic Meter per Second (m³/s) |
|---|---|
| 1 | 2.777778e-7 |
| 2 | 5.555556e-7 |
| 3 | 8.333333e-7 |
| 5 | 0.0000013889 |
| 8 | 0.0000022222 |
| 10 | 0.0000027778 |
| 12 | 0.0000033333 |
| 15 | 0.0000041667 |
| 20 | 0.0000055556 |
| 25 | 0.0000069444 |
| 50 | 0.0000138889 |
| 100 | 0.0000277778 |
| 250 | 0.0000694444 |
| 500 | 0.0001388889 |
| 1000 | 0.0002777778 |
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 = 2.777778e-7 m³/s.
Frequently asked questions
How many cubic meters per second are in one liter per hour?
One liter per hour equals 2.777778e-7 cubic meters per second (m³/s).
How many liters per hour are in one cubic meter per second?
One cubic meter per second equals 3600000 liters per hour (LPH).
How do you convert liters per hour to cubic meters per second?
1 Liter per Hour = 2.777778e-7 m³/s. Use the calculator above for any value.
What is 5 LPH in m³/s?
5 LPH = 0.0000013889 m³/s.
What is 100 LPH in m³/s?
100 LPH = 0.0000277778 m³/s.
What is 10 LPH in m³/s?
10 LPH = 0.0000027778 m³/s.
What is 20 LPH in m³/s?
20 LPH = 0.0000055556 m³/s.
What is 50 LPH in m³/s?
50 LPH = 0.0000138889 m³/s.
What is 500 LPH in m³/s?
500 LPH = 0.0001388889 m³/s.
Is a liter per hour bigger than a cubic meter per second?
No. A liter per hour is smaller — one liter per hour equals 2.777778e-7 cubic meters per second, while one cubic meter per second equals 3600000 liters per hour.