Cubic meters per hour to meters per second
Type a value in m³/h to get it in m/s instantly.
That's 2.7× as fast as the erosive limit — nothing on our list beats it. Getting water moving that fast costs about 9,492 mm of head.
Convert the other way: m/s to m³/h
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 m³/h 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 m³/h = 13.6444 m/s.
The table below is for DN15, ½ inch (16.1 mm bore).
Every unit
Your velocity in every unit
Tables
m³/h to m/s conversion table
| m³/h | m/s |
|---|---|
| 0.25 m³/h | 0.341111 m/s |
| 0.5 m³/h | 0.682222 m/s |
| 0.75 m³/h | 1.02333 m/s |
| 1 m³/h | 1.36444 m/s |
| 1.5 m³/h | 2.04667 m/s |
| 2 m³/h | 2.72889 m/s |
| 2.5 m³/h | 3.41111 m/s |
| 3 m³/h | 4.09333 m/s |
| 4 m³/h | 5.45778 m/s |
| 5 m³/h | 6.82222 m/s |
| 8 m³/h | 10.9156 m/s |
m/s to m³/h conversion table
| m/s | m³/h |
|---|---|
| 0.25 m/s | 0.183225 m³/h |
| 0.5 m/s | 0.36645 m³/h |
| 0.75 m/s | 0.549674 m³/h |
| 1 m/s | 0.732899 m³/h |
| 1.5 m/s | 1.09935 m³/h |
| 2 m/s | 1.4658 m³/h |
| 2.5 m/s | 1.83225 m³/h |
| 3 m/s | 2.1987 m³/h |
| 4 m/s | 2.9316 m³/h |
| 5 m/s | 3.6645 m³/h |
| 8 m/s | 5.86319 m³/h |
Quick answers
Quick answers
- How many m/s is 1 m³/h?
- 1 m³/h is 1.36444 m/s.
- How many m/s is 10 m³/h?
- 10 m³/h is 13.6444 m/s.
The units
About these units
Cubic meters per hour (m³/h)
How pumps and meters are usually rated.
Meters per second (m/s)
The design unit: most systems aim for 1 to 2.
Keep going