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 521 knots into miles per hour we have to multiply 521 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

521 kt → V_(mph)

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

V_(mph) = 521 kt × 1.1507794480225 mph

V_(mph) = 599.55609241975 mph

The final result is:

521 kt → 599.55609241975 mph

We conclude that 521 knots is equivalent to 599.55609241975 miles per hour:

521 knots = 599.55609241975 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 0.0016679006562407 × 521 knots.

Another way is saying that 521 knots is equal to 1 ÷ 0.0016679006562407 miles per hour.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that five hundred twenty-one knots is approximately five hundred ninety-nine point five five six miles per hour:

521 kt ≅ 599.556 mph

An alternative is also that one mile per hour is approximately zero point zero zero two times five hundred twenty-one 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