20 millimeters in decimeters

Conversion

20 millimeters is equivalent to 0.2 decimeters.[1]

Conversion formula
How to convert 20 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 20 ⁢ mm = 0.01 ⁢ dm x ⁢ dm

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

x ⁢ dm = 20 ⁢ mm 1 ⁢ mm * 0.01 ⁢ dm → x ⁢ dm = 0.2 ⁢ dm

Conclusion: 20 ⁢ mm = 0.2 ⁢ dm

20 millimeters is equivalent to 0.2 decimeters

Conversion in the opposite direction

The inverse of the conversion factor is that 1 decimeter is equal to 5 times 20 millimeters.

It can also be expressed as: 20 millimeters is equal to 1 5 decimeters.

Approximation

An approximate numerical result would be: twenty millimeters is about zero decimeters, or alternatively, a decimeter is about zero times twenty 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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