42 millimeters in decimeters

Conversion

42 millimeters is equivalent to 0.42 decimeters.[1]

Conversion formula
How to convert 42 millimeters to decimeters?

We know (by definition) that: 1⁢mm = 0.01⁢dm

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

1 ⁢ mm 42 ⁢ mm = 0.01 ⁢ dm x ⁢ dm

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

x ⁢ dm = 42 ⁢ mm 1 ⁢ mm * 0.01 ⁢ dm → x ⁢ dm = 0.42 ⁢ dm

Conclusion: 42 ⁢ mm = 0.42 ⁢ dm

42 millimeters is equivalent to 0.42 decimeters

Conversion in the opposite direction

The inverse of the conversion factor is that 1 decimeter is equal to 2.38095238095238 times 42 millimeters.

It can also be expressed as: 42 millimeters is equal to 1 2.38095238095238 decimeters.

Approximation

An approximate numerical result would be: forty-two millimeters is about zero decimeters, or alternatively, a decimeter is about two point three seven times forty-two millimeters.

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.

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