Velocity

mph to m/s conversion

Convert mile per hour (mph) to metre per second (m/s). Velocity is distance per unit time — the line-sizing quantity that flags erosion, noise, and pressure drop.

1 mph = 0.44704 m/s

Formula

To convert mile per hour to metre per second, multiply the mph value by 0.44704. To go the other way, divide by 0.44704 (or multiply by 2.236936).

mph to m/s conversion table

mph	m/s
1	0.44704
2	0.89408
5	2.2352
10	4.4704
25	11.176
50	22.352
100	44.704
250	111.76
500	223.52
1000	447.04

Used in practice

Line velocities are checked in m/s or ft/s against service-specific guidance bands.

High velocity means high friction loss and erosion risk; low velocity risks settling in slurry lines.

Worked example. A velocity of 4.473873 mph is 2 m/s.

Frequently asked questions

How do you convert mile per hour to metre per second?

Multiply the value in mph by 0.44704 to get m/s. For example, 10 mph = 4.4704 m/s.

What is 1 mph in m/s?

1 mph equals 0.44704 m/s.

Where is this conversion used?