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 491 knots into miles per hour we have to multiply 491 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

491 kt → V_(mph)

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

V_(mph) = 491 kt × 1.1507794480225 mph

V_(mph) = 565.03270897907 mph

The final result is:

491 kt → 565.03270897907 mph

We conclude that 491 knots is equivalent to 565.03270897907 miles per hour:

491 knots = 565.03270897907 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 0.0017698090466424 × 491 knots.

Another way is saying that 491 knots is equal to 1 ÷ 0.0017698090466424 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 ninety-one knots is approximately five hundred sixty-five point zero three three miles per hour:

491 kt ≅ 565.033 mph

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