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 628 knots into miles per hour we have to multiply 628 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

628 kt → V_(mph)

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

V_(mph) = 628 kt × 1.1507794480225 mph

V_(mph) = 722.68949335816 mph

The final result is:

628 kt → 722.68949335816 mph

We conclude that 628 knots is equivalent to 722.68949335816 miles per hour:

628 knots = 722.68949335816 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 0.0013837201304162 × 628 knots.

Another way is saying that 628 knots is equal to 1 ÷ 0.0013837201304162 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 twenty-eight knots is approximately seven hundred twenty-two point six eight nine miles per hour:

628 kt ≅ 722.689 mph

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