42 kilometers in decimeters
Conversion
42 kilometers is equivalent to 420000 decimeters.[1]
Conversion formula
How to convert 42 kilometers to decimeters?
We know (by definition) that:
We can set up a proportion to solve for the number of decimeters.
Now, we cross multiply to solve for our unknown :
Conclusion:
Conversion in the opposite direction
The inverse of the conversion factor is that 1 decimeter is equal to 2.38095238095238e-06 times 42 kilometers.
It can also be expressed as: 42 kilometers is equal to decimeters.
Approximation
An approximate numerical result would be: forty-two kilometers is about four hundred and twenty thousand decimeters, or alternatively, a decimeter is about zero times forty-two kilometers.
Footnotes
[1] The precision is 15 significant digits (fourteen digits to the right of the decimal point).
Results may contain small errors due to the use of floating point arithmetic.