Liter per Second to Cubic Meter per Second (LPS to m³/s)
Convert LPS to m³/s — Flow Rate converter
Also written as LPS to m3/s.
One liter per second equals 0.001 m³/s, so to convert liters per second to cubic meters per second you multiply the value by 0.001. A liter per second is smaller than a cubic meter per second — going the other way, 1 m³/s = 1000 LPS. For example, 10 LPS = 0.01 m³/s and 50 LPS = 0.05 m³/s.
1 LPS = 0.001 m³/s
Liter per Second to Cubic Meter per Second formula
1 Liter per Second = 0.001 m³/s
Worked examples
- 25 LPS = 0.025 m³/s
- 100 LPS = 0.1 m³/s
Liter per Second to Cubic Meter per Second conversion table
| Liter per Second (LPS) | Cubic Meter per Second (m³/s) |
|---|---|
| 1 | 0.001 |
| 2 | 0.002 |
| 3 | 0.003 |
| 5 | 0.005 |
| 8 | 0.008 |
| 10 | 0.01 |
| 12 | 0.012 |
| 15 | 0.015 |
| 20 | 0.02 |
| 25 | 0.025 |
| 50 | 0.05 |
| 100 | 0.1 |
| 250 | 0.25 |
| 500 | 0.5 |
| 1000 | 1 |
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 = 0.001 m³/s.
Frequently asked questions
How many cubic meters per second are in one liter per second?
One liter per second equals 0.001 cubic meters per second (m³/s).
How many liters per second are in one cubic meter per second?
One cubic meter per second equals 1000 liters per second (LPS).
How do you convert liters per second to cubic meters per second?
1 Liter per Second = 0.001 m³/s. Use the calculator above for any value.
What is 5 LPS in m³/s?
5 LPS = 0.005 m³/s.
What is 100 LPS in m³/s?
100 LPS = 0.1 m³/s.
What is 10 LPS in m³/s?
10 LPS = 0.01 m³/s.
What is 20 LPS in m³/s?
20 LPS = 0.02 m³/s.
What is 50 LPS in m³/s?
50 LPS = 0.05 m³/s.
What is 500 LPS in m³/s?
500 LPS = 0.5 m³/s.
Is a liter per second bigger than a cubic meter per second?
No. A liter per second is smaller — one liter per second equals 0.001 cubic meters per second, while one cubic meter per second equals 1000 liters per second.