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Speed

Just how fast is 1 mile per hour?

Slow motion

1 mph

Scale

DISTANCE IN ONE SECOND

1 mile per hour

The quantity is exact as entered.

0.447 m/sSpeed
0

44.7 cm in 1 s

Walking

Walking is a form of human locomotion where one foot is always in contact with the ground.

1.389 m/sSpeed
0

1.389 m in 1 s

Each track shows distance covered in the same second. The small illustrations identify the movers; their sizes are schematic.

A little perspective

A walking pace is about 3.11 times 1 mile per hour.

Measurements, assumptions & sources +

1 mile per hour

Speed: 0.447 m/s; definition.

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

NIST — SI conversion factors

Walking

Speed: 1.389 m/s; example.

A constant 5 km/h walking model, excluding stops.

Defined examples — our methodology

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

Measurement details

Why these numbers?

Compare 1 mile per hour with a walking pace. The notes below explain how each value was chosen.

1 mile per hour

0.447 m/s

Speed · definition

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

Walking

1.389 m/s

Speed · example

A constant 5 km/h walking model, excluding stops.

Comparing
Speed ↔ Speed
Relative size
A walking pace is about 3.11 times 1 mile per hour. A walking pace is approximately 211% greater than 1 mile per hour.

How to read the visual

The diagram uses the recorded measurements. Details outside the marked spans do not set the scale.

  • A walking pace: This is an illustrative comparison value, not a claim that every example is the same.

Speed is distance per unit time; it does not specify the total distance travelled.

0.44704 m/smetres per second
1.6093 km/hkilometres per hour
Mach 0.0013033Mach
1.4912 × 10⁻⁷% of c (1.4912 × 10⁻⁹c)speed of light

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