## Conversion formula

The conversion factor from feet per second to miles per hour is 0.68181818181818, which means that 1 foot per second is equal to 0.68181818181818 miles per hour:

1 ft/s = 0.68181818181818 mph

To convert 947 feet per second into miles per hour we have to multiply 947 by the conversion factor in order to get the velocity amount from feet per second to miles per hour. We can also form a simple proportion to calculate the result:

1 ft/s → 0.68181818181818 mph

947 ft/s → V(mph)

Solve the above proportion to obtain the velocity V in miles per hour:

V(mph) = 947 ft/s × 0.68181818181818 mph

V(mph) = 645.68181818182 mph

The final result is:

947 ft/s → 645.68181818182 mph

We conclude that 947 feet per second is equivalent to 645.68181818182 miles per hour:

947 feet per second = 645.68181818182 miles per hour

## Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 mile per hour is equal to 0.0015487504399859 × 947 feet per second.

Another way is saying that 947 feet per second is equal to 1 ÷ 0.0015487504399859 miles per hour.

## Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that nine hundred forty-seven feet per second is approximately six hundred forty-five point six eight two miles per hour:

947 ft/s ≅ 645.682 mph

An alternative is also that one mile per hour is approximately zero point zero zero two times nine hundred forty-seven feet per second.

## Conversion table

### feet per second to miles per hour chart

For quick reference purposes, below is the conversion table you can use to convert from feet per second to miles per hour

feet per second (ft/s) miles per hour (mph)
948 feet per second 646.364 miles per hour
949 feet per second 647.045 miles per hour
950 feet per second 647.727 miles per hour
951 feet per second 648.409 miles per hour
952 feet per second 649.091 miles per hour
953 feet per second 649.773 miles per hour
954 feet per second 650.455 miles per hour
955 feet per second 651.136 miles per hour
956 feet per second 651.818 miles per hour
957 feet per second 652.5 miles per hour