3 millimeters in centimeters

Conversion formula
How to convert 3 millimeters to centimeters?

We know (by definition) that: $1\mathrm{mm}=0.1\mathrm{cm}$

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

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

Conclusion: 3 ⁢ mm = 0.30000000000000004 ⁢ cm

Conversion in the opposite direction

The inverse of the conversion factor is that 1 centimeter is equal to 3.33333333333333 times 3 millimeters.

It can also be expressed as: 3 millimeters is equal to $\frac{1}{\mathrm{3.33333333333333}}$ centimeters.

Approximation

An approximate numerical result would be: three millimeters is about zero centimeters, or alternatively, a centimeter is about three point three three times three millimeters.