15 kilometers in centimeters

Conversion formula
How to convert 15 kilometers to centimeters?

We know (by definition) that: $1\mathrm{km}=100000\mathrm{cm}$

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

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

Conclusion: 15 ⁢ km = 1500000 ⁢ cm

Conversion in the opposite direction

The inverse of the conversion factor is that 1 centimeter is equal to 6.66666666666667e-07 times 15 kilometers.

It can also be expressed as: 15 kilometers is equal to $\frac{1}{\mathrm{6.66666666666667e-07}}$ centimeters.

Approximation

An approximate numerical result would be: fifteen kilometers is about one million, five hundred thousand centimeters, or alternatively, a centimeter is about zero times fifteen kilometers.