Conversion formula

The conversion factor from kilometers per hour to knots is 0.53995680345662, which means that 1 kilometer per hour is equal to 0.53995680345662 knots:

1 km/h = 0.53995680345662 kt

To convert 421 kilometers per hour into knots we have to multiply 421 by the conversion factor in order to get the velocity amount from kilometers per hour to knots. We can also form a simple proportion to calculate the result:

1 km/h → 0.53995680345662 kt

421 km/h → V_(kt)

Solve the above proportion to obtain the velocity V in knots:

V_(kt) = 421 km/h × 0.53995680345662 kt

V_(kt) = 227.32181425524 kt

The final result is:

421 km/h → 227.32181425524 kt

We conclude that 421 kilometers per hour is equivalent to 227.32181425524 knots:

421 kilometers per hour = 227.32181425524 knots

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 knot is equal to 0.0043990498812278 × 421 kilometers per hour.

Another way is saying that 421 kilometers per hour is equal to 1 ÷ 0.0043990498812278 knots.

Approximate result

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

421 km/h ≅ 227.322 kt

An alternative is also that one knot is approximately zero point zero zero four times four hundred twenty-one kilometers per hour.

Conversion table

kilometers per hour to knots chart

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