Conversion formula

The conversion factor from knots to kilometers per hour is 1.8519999999969, which means that 1 knot is equal to 1.8519999999969 kilometers per hour:

1 kt = 1.8519999999969 km/h

To convert 345 knots into kilometers per hour we have to multiply 345 by the conversion factor in order to get the velocity amount from knots to kilometers per hour. We can also form a simple proportion to calculate the result:

1 kt → 1.8519999999969 km/h

345 kt → V_(km/h)

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

V_(km/h) = 345 kt × 1.8519999999969 km/h

V_(km/h) = 638.93999999894 km/h

The final result is:

345 kt → 638.93999999894 km/h

We conclude that 345 knots is equivalent to 638.93999999894 kilometers per hour:

345 knots = 638.93999999894 kilometers per hour

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 kilometer per hour is equal to 0.0015650921839322 × 345 knots.

Another way is saying that 345 knots is equal to 1 ÷ 0.0015650921839322 kilometers per hour.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that three hundred forty-five knots is approximately six hundred thirty-eight point nine four kilometers per hour:

345 kt ≅ 638.94 km/h

An alternative is also that one kilometer per hour is approximately zero point zero zero two times three hundred forty-five knots.

Conversion table

knots to kilometers per hour chart

For quick reference purposes, below is the conversion table you can use to convert from knots to kilometers per hour