Miles per hour to Meters per second Converter

Converting miles per hour to meters per second is a multiplication by a fixed factor: 1 mph = 0.44704 m/s. The table below covers the values people look up most often, and the formula section shows exactly where that factor comes from.

Because one mile per hour works out to 0.44704 m/s, the meter per second is the much smaller unit of the two: a figure given in meter per second always carries a smaller number than the same measurement in mile per hour. A chart drawn in mph can hide that, so check which label the axis uses before you compare two readings.

Driving and sport are the everyday sources of this pair: a dashboard reading in miles per hour against a speed limit posted in meters per second, or a training plan written in one while a device reports the other.

The conversion factor used here is 0.44704 m/s per mile per hour (5 significant digits as shown). Kept to seven figures it covers professional measurement; if you round it to two or three decimals for a spreadsheet, the error scales with the input — at a value of 1,000 mph a factor rounded to three decimals can be off by a measurable amount. The reverse direction uses 2.236936 mph per m/s, the exact reciprocal, so a round trip through both pages returns your original number.

Miles per hour to Meters per second formula

Use this formula to convert any mile per hour value to meters per second:

m/s = mph × 0.44704

Worked example: 100 mph × 0.44704 = 44.704 m/s.

Miles per hour to Meters per second conversion table

Miles per hour (mph)Meters per second (m/s)
0.5 mph0.22352 m/s
1 mph0.44704 m/s
2 mph0.89408 m/s
5 mph2.2352 m/s
10 mph4.4704 m/s
20 mph8.9408 m/s
50 mph22.352 m/s
100 mph44.704 m/s
500 mph223.52 m/s
1000 mph447.04 m/s

How to convert miles per hour to meters per second

Multiply the mile per hour value by 0.44704 to get the equivalent in meters per second. This single factor works for every value in the table above and for anything else you need — there is no per-value adjustment, which is why a conversion table and a calculator always agree.

If you need the opposite direction, use the Meters per second to Miles per hour converter instead of dividing by hand; both pages use the same source factors. For every other mph conversion in one place, see the mph conversion hub.

Frequently asked questions

How many meters per second are in 1 mile per hour?
1 mile per hour = 0.44704 m/s.

What is 100 miles per hour in meters per second?
100 mph = 44.704 m/s.

Is converting miles per hour to meters per second the same as meters per second to miles per hour?
No — the direction changes the multiplier. The reverse conversion (1 m/s = 2.236936 mph) is on the Meters per second to Miles per hour page.

Related conversions

Try the ConvBolt Unit Converter for any other speed unit, browse the Speed conversions, or read our conversion guides.