42 kilometers in feet

Conversion formula
How to convert 42 kilometers to feet?

We know (by definition) that: $1\mathrm{km}\approx 3280.8399\mathrm{ft}$

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

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

Conclusion: 42 ⁢ km ≈ 137795.2758 ⁢ ft

Conversion in the opposite direction

The inverse of the conversion factor is that 1 foot is equal to 7.25714285714286e-06 times 42 kilometers.

It can also be expressed as: 42 kilometers is equal to $\frac{1}{\mathrm{7.25714285714286e-06}}$ feet.

Approximation

An approximate numerical result would be: forty-two kilometers is about one hundred and thirty-seven thousand, seven hundred and ninety-five point two seven feet, or alternatively, a foot is about zero times forty-two kilometers.