## 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 550 knots into miles per hour we have to multiply 550 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

550 kt → V(mph)

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

V(mph) = 550 kt × 1.1507794480225 mph

V(mph) = 632.9286964124 mph

The final result is:

550 kt → 632.9286964124 mph

We conclude that 550 knots is equivalent to 632.9286964124 miles per hour:

550 knots = 632.9286964124 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 0.0015799568034571 × 550 knots.

Another way is saying that 550 knots is equal to 1 ÷ 0.0015799568034571 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 fifty knots is approximately six hundred thirty-two point nine two nine miles per hour:

550 kt ≅ 632.929 mph

An alternative is also that one mile per hour is approximately zero point zero zero two times five hundred fifty 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)
551 knots 634.079 miles per hour
552 knots 635.23 miles per hour
553 knots 636.381 miles per hour
554 knots 637.532 miles per hour
555 knots 638.683 miles per hour
556 knots 639.833 miles per hour
557 knots 640.984 miles per hour
558 knots 642.135 miles per hour
559 knots 643.286 miles per hour
560 knots 644.436 miles per hour