Usain Bolt's Average Speed Over 100 m in 9.58 s

Usain Bolt's world-record 100 m in 9.58 seconds equals an average speed of about 10.44 m/s.

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Enter speed, distance and time in the fields above.
Results update instantly as you type — or click Calculate.
Read your speed and the full breakdown beneath it.

Calculate Usain Bolt's average speed during his world-record 100-meter sprint of 9.58 seconds.

Frequently asked questions

What units should I use?: Any consistent units work — e.g. metres and seconds for SI, or km and hours for everyday driving. Just don't mix (e.g. km/h for speed with metres for distance).
How do I convert km/h to m/s?: Divide by 3.6. Example: 72 km/h ÷ 3.6 = 20 m/s.