UnitConvConvert
Speed

Convert miles per hour to meters per second

1 mph=0.447m/s

Use the converter below to change any miles per hour value into meters per second instantly — with formula, conversion table, and real-world examples.

0.44704

Conversion formula

Forward
meters per second = miles per hour × 0.447
Reverse
miles per hour = meters per second × 2.23694

Example: 10 mph × 0.447 = 4.4704 m/s.

About both units

From

Mile per Hour

mph

Miles per hour (mph) is the standard road-speed unit in the US, UK and a few other countries. US highways typically 65–75 mph; UK motorways 70 mph. US weather reports wind speed in mph, while meteorologists also use knots.

Real-world: US interstate: 70 mph typical. UK motorway: 70 mph limit. Cycling pro speed: 25 mph. Tornado winds: 110+ mph.
Read full mile per hour reference →
To

Meter per Second

m/s

Metres per second (m/s) is the SI base speed unit. Used in physics, sports-science studies, and wind-speed reporting (e.g., hurricanes). Usain Bolt's 100 m sprint averaged 10.44 m/s. Hurricane-force winds are above 32.7 m/s.

Real-world: Usain Bolt's 100 m: avg 10.44 m/s, peak 12.27 m/s. Hurricane minimum: 32.7 m/s. Walking: 1.4 m/s.
Read full meter per second reference →

Mile per Hour to Meter per Second conversion table

Common miles per hour to meters per second values for quick reference.

Mile per Hour (mph)Meter per Second (m/s)
1 mph0.447 m/s
5 mph2.2352 m/s
10 mph4.4704 m/s
25 mph11.176 m/s
50 mph22.352 m/s
100 mph44.704 m/s
150 mph67.056 m/s
200 mph89.408 m/s
300 mph134.112 m/s
500 mph223.52 m/s

Tips & common mistakes

Quick tips

  • 1 mph = 1.609 km/h = 0.447 m/s.
  • Quick convert: mph × 1.6 = km/h.
  • UK speeds posted in mph on road signs despite general metrication.

Avoid these

  • Reading a UK road sign "50" as km/h — it's mph (= 80 km/h).
  • Converting mph to km/h by multiplying by 1.5 instead of 1.609 — 7% error.
  • Assuming "mph" and "MPH" differ — capitalisation does not matter.

Frequently asked questions

How many meters per second in a mile per hour?
One mile per hour equals 0.447 meters per second.
How do I convert miles per hour to meters per second?
Multiply the mile per hour value by 0.447 to get the equivalent in meters per second.
What is 100 miles per hour in meters per second?
100 miles per hour equals 44.704 meters per second.
Is a mile per hour bigger than a meter per second?
No. 1 mile per hour equals 0.447 meters per second, so one mile per hour is smaller.
How to convert miles per hour to meters per second without a calculator?
Multiply by 0.45 for a quick estimate; use a calculator for precise results.

Related speed conversions

📊 See full comparison matrix →

More from Mile per Hour

mph → km/h
1 = 1.60934 km/h
mph → kn
1 = 0.869 kn
mph → Ma
1 = 0.001314 Ma
mph → ft/s
1 = 1.46667 ft/s
mph → cm/s
1 = 44.704 cm/s
mph → yd/min
1 = 29.3333 yd/min
mph → in/min
1 = 1,056.83 in/min
mph → Bft
1 = 0.447 Bft

More to Meter per Second

km/h → m/s
1 = 0.2778 m/s
kn → m/s
1 = 0.5144 m/s
Ma → m/s
1 = 340.29 m/s
ft/s → m/s
1 = 0.3048 m/s
cm/s → m/s
1 = 0.01 m/s
yd/min → m/s
1 = 0.01524 m/s
in/min → m/s
1 = 0.000423 m/s
Bft → m/s
1 = 1 m/s

Conversions in other categories

WeightKilogram → PoundLengthKilometer → MileTemperatureCelsius → FahrenheitVolumeLiter → US GallonAreaSquare Meter → Square FootEnergyKilojoule → KilocaloriePressureBar → Pound per Square InchPowerKilowatt → Mechanical Horsepower