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 686 knots into miles per hour we have to multiply 686 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

686 kt → V_(mph)

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

V_(mph) = 686 kt × 1.1507794480225 mph

V_(mph) = 789.43470134347 mph

The final result is:

686 kt → 789.43470134347 mph

We conclude that 686 knots is equivalent to 789.43470134347 miles per hour:

686 knots = 789.43470134347 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 0.0012667292155997 × 686 knots.

Another way is saying that 686 knots is equal to 1 ÷ 0.0012667292155997 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 eighty-six knots is approximately seven hundred eighty-nine point four three five miles per hour:

686 kt ≅ 789.435 mph

An alternative is also that one mile per hour is approximately zero point zero zero one times six hundred eighty-six 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