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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 315 feet per second into miles per hour we have to multiply 315 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

315 ft/s → V(mph)

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

V(mph) = 315 ft/s × 0.68181818181818 mph

V(mph) = 214.77272727273 mph

The final result is:

315 ft/s → 214.77272727273 mph

We conclude that 315 feet per second is equivalent to 214.77272727273 miles per hour:

315 feet per second = 214.77272727273 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 0.0046560846560847 × 315 feet per second.

Another way is saying that 315 feet per second is equal to 1 ÷ 0.0046560846560847 miles per hour.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that three hundred fifteen feet per second is approximately two hundred fourteen point seven seven three miles per hour:

315 ft/s ≅ 214.773 mph

An alternative is also that one mile per hour is approximately zero point zero zero five times three hundred fifteen 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)
316 feet per second 215.455 miles per hour
317 feet per second 216.136 miles per hour
318 feet per second 216.818 miles per hour
319 feet per second 217.5 miles per hour
320 feet per second 218.182 miles per hour
321 feet per second 218.864 miles per hour
322 feet per second 219.545 miles per hour
323 feet per second 220.227 miles per hour
324 feet per second 220.909 miles per hour
325 feet per second 221.591 miles per hour