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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.

miles/hour | meter/second | kilometer/hour | feet/second |
---|---|---|---|

1 mph | 0.44704 m/s | 1.60934 km/h | 1.4666 ft/s |

2 mph | 0.89408 m/s | 3.218688 km/h | 2.9333 ft/s |

3 mph | 1.34112 m/s | 4.828032 km/h | 4.4 ft/s |

4 mph | 1.78816 m/s | 6.437376 km/h | 5.8666 ft/s |

5 mph | 2.2352 m/s | 8.04672 km/h | 7.3333 ft/s |

6 mph | 2.68224 m/s | 9.656064 km/h | 8.8 ft/s |

7 mph | 3.12928 m/s | 11.265408 km/h | 10.2666 ft/s |

8 mph | 3.57632 m/s | 12.874752 km/h | 11.73333 ft/s |

9 mph | 4.02336 m/s | 14.484096 km/h | 13.2000 ft/s |

10 mph | 4.4704 m/s | 16.09344 km/h | 14.6666 ft/s |