How to Calculate Travel Time

This finds how long a journey takes when you know how far it is and how fast you are going. Divide the distance by the speed.

$t$ is the time, $x$ is the distance and $v$ is the speed. It is the relationship $x = vt$ solved for $t$.

Example

With a distance of 120 and a speed of 60, $t = 120 \div 60 = 2$. If the distance was in kilometres and the speed in km/h, the trip takes 2 hours.

Notes

The two inputs have to agree. Kilometres divided by km/h give hours; metres divided by m/s give seconds. Dividing kilometres by a speed in m/s produces a meaningless number.

The answer is a decimal, not hours and minutes. A result of 2.5 means two and a half hours, not 2 hours 5 minutes. Multiply the fractional part by 60 to turn it into minutes: 0.25 is 15 minutes and 0.75 is 45 minutes.

A speed of 0 never covers any ground, so there is no time to report and the calculator says so.

Real journeys speed up and slow down, so feed in an average speed and read the answer as an estimate rather than a promise.