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 220 knots into miles per hour we have to multiply 220 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

220 kt → V_(mph)

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

V_(mph) = 220 kt × 1.1507794480225 mph

V_(mph) = 253.17147856496 mph

The final result is:

220 kt → 253.17147856496 mph

We conclude that 220 knots is equivalent to 253.17147856496 miles per hour:

220 knots = 253.17147856496 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 0.0039498920086427 × 220 knots.

Another way is saying that 220 knots is equal to 1 ÷ 0.0039498920086427 miles per hour.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that two hundred twenty knots is approximately two hundred fifty-three point one seven one miles per hour:

220 kt ≅ 253.171 mph

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