## 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

knots (kt) miles per hour (mph)
629 knots 723.84 miles per hour
630 knots 724.991 miles per hour
631 knots 726.142 miles per hour
632 knots 727.293 miles per hour
633 knots 728.443 miles per hour
634 knots 729.594 miles per hour
635 knots 730.745 miles per hour
636 knots 731.896 miles per hour
637 knots 733.047 miles per hour
638 knots 734.197 miles per hour