mph calculator

Free online mph calculator – Calculate your MPH (Miles Per Hour). Enter the distance value and time, then click the calculate button.

Miles per hour formula

The formula for calculating miles per hour (mph) is:

MPH = D(miles) / T(hour)

• MPH = Miles per hour
• D = Distance in miles
• T = Time in hour

By dividing the distance travelled by the time taken, you get the speed in miles per hour.

How to calculate miles per hour?

To calculate miles per hour (mph), you need two pieces of information: the distance travelled in miles and the time taken in hours.

Problem:
Sarah is driving from her home to a nearby town. She travels a distance of 150 miles and takes 3 hours to reach the town. Calculate her average speed in miles per hour (mph).

Solution:
To calculate her average speed (mph), we use the formula:

mph = distance (in miles)/time (in hours)

Given:
Distance = 150 miles, Time = 3 hours

Now, we put the values into the formula:

mph = 150 miles / 3 hours = 50 miles per hour (mi/h)

So, Sarah’s average speed during the trip was 50 miles per hour (mph).

Miles per hour Table

mph to other speed units (m/s, km/h and ft/s) conversion chart table.

More Calculator