It's simple math.
100 miles / 1 hour = 100mph
100 miles / 2 hour = 50mph
So you just divide the number of miles by the time it takes you to go that long.
Chat with our AI personalities
MPH = miles per hour. In order to calculate hours from seconds, you just need to know that there are 3,600 seconds in an hour.
315 kilometers per hour = 195.731926 mph (miles per hour)
10 miles per hour is 16k per hour.
About 37.2 MPH
621.4 mph