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 42.5 knots into kilometers per hour we have to multiply 42.5 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

42.5 kt → V_(km/h)

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

V_(km/h) = 42.5 kt × 1.8519999999969 km/h

V_(km/h) = 78.709999999869 km/h

The final result is:

42.5 kt → 78.709999999869 km/h

We conclude that 42.5 knots is equivalent to 78.709999999869 kilometers per hour:

42.5 knots = 78.709999999869 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 0.012704865963685 × 42.5 knots.

Another way is saying that 42.5 knots is equal to 1 ÷ 0.012704865963685 kilometers per hour.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that forty-two point five knots is approximately seventy-eight point seven one kilometers per hour:

42.5 kt ≅ 78.71 km/h

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