Speed

Just how fast is 10 kilometres per hour?

On foot

10 km/h

2.7778 m/smetres per second
6.2137 mphmiles per hour
Mach 0.0080985Mach
9.2657 × 10⁻⁹ cspeed of light
Equal time
DISTANCE IN ONE SECOND2.778 m in 1 s2.778 m in 1 s
01
10 kilometres per hour2.778 m/sSpeed · definition
02
Running2.778 m/sSpeed · example
Each track shows distance covered in the same second. The small illustrations identify the movers; their sizes are schematic.

A little perspective

10 kilometres per hour and Running have approximately the same speed.

Measurements, assumptions & sources +

10 kilometres per hour

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

NIST — SI conversion factors

Running

A chosen steady 10 km/h run.

Defined examples — our methodology

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

Measurement details

Why these numbers?

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

10 kilometres per hour

2.778 m/s

Speed · definition

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

Running

2.778 m/s

Speed · example

A chosen steady 10 km/h run.

Comparing
Speed ↔ Speed
Relative size
The two selected measurements are approximately equal.

How to read the visual

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

  • Running is labelled example; treat the displayed value as a comparison anchor rather than false precision.

Change your perspective

Put it next to…

Choose a suggestion to redraw the comparison, or open its page to learn what it is.

About this thing
About this thing
About this thing
About this thing
About this thing
About this thing

The full collection

Choose something to compare.

Loading compatible things…

A little smaller. A little larger.

Keep exploring speed.

See all ↗

Share a little perspective.