Liter per Hour to Cubic Centimeter per Second (LPH to cm³/s)
Convert LPH to cm³/s — Flow Rate converter
Also written as LPH to cm3/s.
One liter per hour equals 0.27777778 cm³/s, so to convert liters per hour to cubic centimeters per second you multiply the value by 0.27777778. A liter per hour is smaller than a cubic centimeter per second — going the other way, 1 cm³/s = 3.6 LPH. For example, 10 LPH = 2.777778 cm³/s and 50 LPH = 13.888889 cm³/s.
1 LPH = 0.27777778 cm³/s
Liter per Hour to Cubic Centimeter per Second formula
1 Liter per Hour = 0.27777778 cm³/s
Worked examples
- 25 LPH = 6.944444 cm³/s
- 100 LPH = 27.777778 cm³/s
Liter per Hour to Cubic Centimeter per Second conversion table
| Liter per Hour (LPH) | Cubic Centimeter per Second (cm³/s) |
|---|---|
| 1 | 0.27777778 |
| 2 | 0.55555556 |
| 3 | 0.83333333 |
| 5 | 1.388889 |
| 8 | 2.222222 |
| 10 | 2.777778 |
| 12 | 3.333333 |
| 15 | 4.166667 |
| 20 | 5.555556 |
| 25 | 6.944444 |
| 50 | 13.888889 |
| 100 | 27.777778 |
| 250 | 69.444444 |
| 500 | 138.888889 |
| 1000 | 277.777778 |
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 = 0.27777778 cm³/s.
Frequently asked questions
How many cubic centimeters per second are in one liter per hour?
One liter per hour equals 0.27777778 cubic centimeters per second (cm³/s).
How many liters per hour are in one cubic centimeter per second?
One cubic centimeter per second equals 3.6 liters per hour (LPH).
How do you convert liters per hour to cubic centimeters per second?
1 Liter per Hour = 0.27777778 cm³/s. Use the calculator above for any value.
What is 5 LPH in cm³/s?
5 LPH = 1.388889 cm³/s.
What is 100 LPH in cm³/s?
100 LPH = 27.777778 cm³/s.
What is 10 LPH in cm³/s?
10 LPH = 2.777778 cm³/s.
What is 20 LPH in cm³/s?
20 LPH = 5.555556 cm³/s.
What is 50 LPH in cm³/s?
50 LPH = 13.888889 cm³/s.
What is 500 LPH in cm³/s?
500 LPH = 138.888889 cm³/s.
Is a liter per hour bigger than a cubic centimeter per second?
No. A liter per hour is smaller — one liter per hour equals 0.27777778 cubic centimeters per second, while one cubic centimeter per second equals 3.6 liters per hour.