85 centimeters in millimeters

Conversion formula
How to convert 85 centimeters to millimeters?

We know (by definition) that: $1\mathrm{cm}=10\mathrm{mm}$

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

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

Conclusion: 85 ⁢ cm = 850 ⁢ mm

Conversion in the opposite direction

The inverse of the conversion factor is that 1 millimeter is equal to 0.00117647058823529 times 85 centimeters.

It can also be expressed as: 85 centimeters is equal to $\frac{1}{\mathrm{0.00117647058823529}}$ millimeters.

Approximation

An approximate numerical result would be: eighty-five centimeters is about eight hundred and fifty millimeters, or alternatively, a millimeter is about zero times eighty-five centimeters.