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Unit Converter

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 1390 feet per second into miles per hour we have to multiply 1390 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

1390 ft/s → V(mph)

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

V(mph) = 1390 ft/s × 0.68181818181818 mph

V(mph) = 947.72727272727 mph

The final result is:

1390 ft/s → 947.72727272727 mph

We conclude that 1390 feet per second is equivalent to 947.72727272727 miles per hour:

1390 feet per second = 947.72727272727 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 0.0010551558752998 × 1390 feet per second.

Another way is saying that 1390 feet per second is equal to 1 ÷ 0.0010551558752998 miles per hour.

Approximate result

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

1390 ft/s ≅ 947.727 mph

An alternative is also that one mile per hour is approximately zero point zero zero one times one thousand three hundred ninety 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)
1391 feet per second 948.409 miles per hour
1392 feet per second 949.091 miles per hour
1393 feet per second 949.773 miles per hour
1394 feet per second 950.455 miles per hour
1395 feet per second 951.136 miles per hour
1396 feet per second 951.818 miles per hour
1397 feet per second 952.5 miles per hour
1398 feet per second 953.182 miles per hour
1399 feet per second 953.864 miles per hour
1400 feet per second 954.545 miles per hour