Conversion formula

The conversion factor from feet per second to meters per second is 0.3048, which means that 1 foot per second is equal to 0.3048 meters per second:

1 ft/s = 0.3048 m/s

To convert 421 feet per second into meters per second we have to multiply 421 by the conversion factor in order to get the velocity amount from feet per second to meters per second. We can also form a simple proportion to calculate the result:

1 ft/s → 0.3048 m/s

421 ft/s → V_(m/s)

Solve the above proportion to obtain the velocity V in meters per second:

V_(m/s) = 421 ft/s × 0.3048 m/s

V_(m/s) = 128.3208 m/s

The final result is:

421 ft/s → 128.3208 m/s

We conclude that 421 feet per second is equivalent to 128.3208 meters per second:

421 feet per second = 128.3208 meters per second

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 meter per second is equal to 0.0077929688717651 × 421 feet per second.

Another way is saying that 421 feet per second is equal to 1 ÷ 0.0077929688717651 meters per second.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that four hundred twenty-one feet per second is approximately one hundred twenty-eight point three two one meters per second:

421 ft/s ≅ 128.321 m/s

An alternative is also that one meter per second is approximately zero point zero zero eight times four hundred twenty-one feet per second.

Conversion table

feet per second to meters per second chart

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