420 yards in kilometers

Conversion formula
How to convert 420 yards to kilometers?

We know (by definition) that: $1\mathrm{yd}=0.0009144\mathrm{km}$

We can set up a proportion to solve for the number of kilometers.

Now, we cross multiply to solve for our unknown $x$:

Conclusion: 420 ⁢ yd = 0.384048 ⁢ km

Conversion in the opposite direction

The inverse of the conversion factor is that 1 kilometer is equal to 2.60384118651835 times 420 yards.

It can also be expressed as: 420 yards is equal to $\frac{1}{\mathrm{2.60384118651835}}$ kilometers.

Approximation

An approximate numerical result would be: four hundred and twenty yards is about zero point three eight kilometers, or alternatively, a kilometer is about two point six zero times four hundred and twenty yards.