Conversion formula

The conversion factor from meters per second to miles per hour is 2.2369362920544, which means that 1 meter per second is equal to 2.2369362920544 miles per hour:

1 m/s = 2.2369362920544 mph

To convert 20.9 meters per second into miles per hour we have to multiply 20.9 by the conversion factor in order to get the velocity amount from meters per second to miles per hour. We can also form a simple proportion to calculate the result:

1 m/s → 2.2369362920544 mph

20.9 m/s → V_(mph)

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

V_(mph) = 20.9 m/s × 2.2369362920544 mph

V_(mph) = 46.751968503937 mph

The final result is:

20.9 m/s → 46.751968503937 mph

We conclude that 20.9 meters per second is equivalent to 46.751968503937 miles per hour:

20.9 meters per second = 46.751968503937 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 0.021389473684211 × 20.9 meters per second.

Another way is saying that 20.9 meters per second is equal to 1 ÷ 0.021389473684211 miles per hour.

Approximate result

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

20.9 m/s ≅ 46.752 mph

An alternative is also that one mile per hour is approximately zero point zero two one times twenty point nine meters per second.

Conversion table

meters per second to miles per hour chart

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