Speed

Just how fast is 5 miles per hour?

On foot

5 mph

2.2352 m/smetres per second
8.0467 km/hkilometres per hour
Mach 0.0065166Mach
7.4558 × 10⁻⁹ cspeed of light
Equal time
DISTANCE IN ONE SECOND2.235 m in 1 s1.8 m in 1 s
01
5 miles per hour2.235 m/sSpeed · definition
02
Canal narrowboat1.8 m/sDefined cruising speed · defined specimen · range 1 m/s–2.2 m/s
Each track shows distance covered in the same second. The small illustrations identify the movers; their sizes are schematic.

A little perspective

5 miles per hour moves about 1.24 times as fast as Canal narrowboat.

Measurements, assumptions & sources +

5 miles per hour

The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.

NIST — SI conversion factors

Canal narrowboat

A defined 17.7 m cruising narrowboat displacing 18 tonnes and travelling at 1.8 m/s. Bow-to-stern hull length excludes removable fenders; fit-out, loading and waterway dimensions vary.

Canal & River Trust — Boats and boating

The marked defined cruising speed is calibrated. Unmeasured illustration details are representative.

Measurement details

Why these numbers?

The visual compares speed with defined cruising speed. The records below preserve each value’s basis and caveats.

5 miles per hour

2.235 m/s

Speed · definition

The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.

Canal narrowboat

1.8 m/s

Defined cruising speed · defined specimen · range 1 m/s–2.2 m/s

A defined 17.7 m cruising narrowboat displacing 18 tonnes and travelling at 1.8 m/s. Bow-to-stern hull length excludes removable fenders; fit-out, loading and waterway dimensions vary.

Comparing
Speed ↔ Defined cruising speed
Relative size
5 miles per hour is larger on this measurement by a factor of about 1.24. 5 miles per hour's selected measurement is approximately 24.2% greater than Canal narrowboat's.

How to read the visual

The labelled spans and stored measurements determine the scale; unmeasured illustration details do not.

  • Canal narrowboat uses a 1.8 m/s central value within a recorded range of 1 m/s–2.2 m/s.
  • Canal narrowboat is labelled defined specimen; treat the displayed value as a comparison anchor rather than false precision.

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