Formula

distance = speed * time

Example

You are travelling 96 miles per hour (speed and time) for 1 hour and 30 minutes (time).
Both speed/time and time have to be in the same units to make the multiplication.
Changing the 1 hour and 30 minutes into an hour format makes sense.

There are 60 minutes in one hour; to change one minute into hours, divide one by 60.

1 ÷ 60 = 0.01666666666666666666666666666667.

Multiply this amount by 30;

0.01666666666666666666666666666667 * 30 = 0.5

1 hour and 30 minutes = 1.5 hours

Multiply 96 miles per hour by 1.5 hours to get the distance;

96 * 1.5 = 144

At a speed of 96 miles per hour for one hour and 30 minutes, you will travel 144 miles.

Conversions

one hour = 60 minutes
one minute = 0.01666666666666666666666666666667 hours
one mile (mi) = 1.609344 kilometres (km)