Liters per second to meters per second
Type a value in L/s to get it in m/s instantly.
That's 9.8× as fast as the erosive limit — nothing on our list beats it. Getting water moving that fast costs about 123,000 mm of head.
Convert the other way: m/s to L/s
What it means
How fast is it moving?
Velocities are averages across the bore. At the wall the fluid is stationary and in the middle it moves faster, which is what erodes bends.
The math
How to convert L/s to m/s
Velocity is flow divided by cross-sectional area: v = Q ÷ (π × (bore ÷ 2)²). Because the area goes with the square of the bore, one size up cuts the velocity to less than half. The figures below use the bore selected above.
Example: 10 L/s = 49.12 m/s.
The table below is for DN15, ½ inch (16.1 mm bore).
Every unit
Your velocity in every unit
Tables
L/s to m/s conversion table
| L/s | m/s |
|---|---|
| 0.25 L/s | 1.228 m/s |
| 0.5 L/s | 2.456 m/s |
| 0.75 L/s | 3.684 m/s |
| 1 L/s | 4.912 m/s |
| 1.5 L/s | 7.368 m/s |
| 2 L/s | 9.824 m/s |
| 2.5 L/s | 12.28 m/s |
| 3 L/s | 14.736 m/s |
| 4 L/s | 19.648 m/s |
| 5 L/s | 24.56 m/s |
| 8 L/s | 39.296 m/s |
m/s to L/s conversion table
| m/s | L/s |
|---|---|
| 0.25 m/s | 0.0508958 L/s |
| 0.5 m/s | 0.101792 L/s |
| 0.75 m/s | 0.152687 L/s |
| 1 m/s | 0.203583 L/s |
| 1.5 m/s | 0.305375 L/s |
| 2 m/s | 0.407166 L/s |
| 2.5 m/s | 0.508958 L/s |
| 3 m/s | 0.610749 L/s |
| 4 m/s | 0.814332 L/s |
| 5 m/s | 1.01792 L/s |
| 8 m/s | 1.62866 L/s |
Quick answers
Quick answers
- How many m/s is 1 L/s?
- 1 L/s is 4.912 m/s.
- How many m/s is 10 L/s?
- 10 L/s is 49.12 m/s.
The units
About these units
Liters per second (L/s)
The unit of building services design.
Meters per second (m/s)
The design unit: most systems aim for 1 to 2.
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