9 centimeters in inches

Conversion formula
How to convert 9 centimeters to inches?

We know (by definition) that: $1\mathrm{cm}\approx 0.39370079\mathrm{in}$

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

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

Conclusion: 9 ⁢ cm ≈ 3.54330711 ⁢ in

Conversion in the opposite direction

The inverse of the conversion factor is that 1 inch is equal to 0.282222222222222 times 9 centimeters.

It can also be expressed as: 9 centimeters is equal to $\frac{1}{\mathrm{0.282222222222222}}$ inches.

Approximation

An approximate numerical result would be: nine centimeters is about three point five four inches, or alternatively, a inch is about zero point two eight times nine centimeters.