Conversion formula

The conversion factor from knots to miles per hour is 1.1507794480225, which means that 1 knot is equal to 1.1507794480225 miles per hour:

1 kt = 1.1507794480225 mph

To convert 664 knots into miles per hour we have to multiply 664 by the conversion factor in order to get the velocity amount from knots to miles per hour. We can also form a simple proportion to calculate the result:

1 kt → 1.1507794480225 mph

664 kt → V_(mph)

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

V_(mph) = 664 kt × 1.1507794480225 mph

V_(mph) = 764.11755348697 mph

The final result is:

664 kt → 764.11755348697 mph

We conclude that 664 knots is equivalent to 764.11755348697 miles per hour:

664 knots = 764.11755348697 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 0.0013086991594901 × 664 knots.

Another way is saying that 664 knots is equal to 1 ÷ 0.0013086991594901 miles per hour.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that six hundred sixty-four knots is approximately seven hundred sixty-four point one one eight miles per hour:

664 kt ≅ 764.118 mph

An alternative is also that one mile per hour is approximately zero point zero zero one times six hundred sixty-four knots.

Conversion table

knots to miles per hour chart

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