28 millimeters in inches

Conversion formula
How to convert 28 millimeters to inches?

We know (by definition) that: $1\mathrm{mm}\approx 0.039370079\mathrm{in}$

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

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

Conclusion: 28 ⁢ mm ≈ 1.102362212 ⁢ in

Conversion in the opposite direction

The inverse of the conversion factor is that 1 inch is equal to 0.907142857142857 times 28 millimeters.

It can also be expressed as: 28 millimeters is equal to $\frac{1}{\mathrm{0.907142857142857}}$ inches.

Approximation

An approximate numerical result would be: twenty-eight millimeters is about one point one zero inches, or alternatively, a inch is about zero point nine one times twenty-eight millimeters.