## 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 449 feet per second into miles per hour we have to multiply 449 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

449 ft/s → V(mph)

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

V(mph) = 449 ft/s × 0.68181818181818 mph

V(mph) = 306.13636363636 mph

The final result is:

449 ft/s → 306.13636363636 mph

We conclude that 449 feet per second is equivalent to 306.13636363636 miles per hour:

449 feet per second = 306.13636363636 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 0.0032665181885672 × 449 feet per second.

Another way is saying that 449 feet per second is equal to 1 ÷ 0.0032665181885672 miles per hour.

## Approximate result

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

449 ft/s ≅ 306.136 mph

An alternative is also that one mile per hour is approximately zero point zero zero three times four hundred forty-nine 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)
450 feet per second 306.818 miles per hour
451 feet per second 307.5 miles per hour
452 feet per second 308.182 miles per hour
453 feet per second 308.864 miles per hour
454 feet per second 309.545 miles per hour
455 feet per second 310.227 miles per hour
456 feet per second 310.909 miles per hour
457 feet per second 311.591 miles per hour
458 feet per second 312.273 miles per hour
459 feet per second 312.955 miles per hour