1000 kilometers in centimeters

Conversion formula
How to convert 1000 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: 1000 ⁢ km = 100000000 ⁢ cm

Conversion in the opposite direction

The inverse of the conversion factor is that 1 centimeter is equal to 1e-08 times 1000 kilometers.

It can also be expressed as: 1000 kilometers is equal to $\frac{1}{\mathrm{1e-08}}$ centimeters.

Approximation

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