MPH to M/S Converter

This table covers common driving and physics-problem reference points.

To convert miles per hour to meters per second, multiply the mph value by 0.44704. For example, 60 mph times 0.44704 equals 26.82 m/s.

To go the other way, from m/s back to mph, divide by 0.44704 instead. For example, 26.82 m/s divided by 0.44704 equals 60 mph. For the kilometers-per-hour scale instead, use the MPH to Kilometers per Hour converter below.

Physics word problems (projectile motion, kinetic energy, momentum) are almost always written in SI units, so a speed given in the more familiar mph first needs converting to m/s before it can be plugged into the formula. Wind-tunnel testing, ballistics calculations, and engineering specifications for anything exported outside the US follow the same pattern, converting a US-customary mph figure into the metric base unit everyone else’s equations expect.

A quick way to estimate m/s from mph

For a fast mental estimate, roughly halve the mph value to get a ballpark m/s figure (since 0.44704 is close to 0.5). This shortcut is only approximate, not the exact conversion this calculator provides, but it is a useful sanity check for whether a computed result is in the right range.

This calculator is part of a small family of real speed conversion tools, each covering a different pair of units.

• Meters per Second to MPH Converter: the reverse direction of this page
• MPH to Kilometers per Hour Converter: converting mph to the everyday km/h scale
• Meters per Second to KM/H Converter: converting an m/s value to km/h instead
• MPH to Knots Converter: converting a road-speed mph value to knots