Tire width

I have an '06 camry le with stock steel rims and wanted to know what's the widest tire that I can fit on the rim?

well i don't know much about the topic but as long as i know there is only one tire width for the kind of rims you have. which is default. If u want to install more wider tires then you probably have to get new rims too.

You can do what is termed a "plus zero" increase in tire width. Meaning that to increase the width of the tire, you also have to reduce the aspect ratio (the height of the side wall / the tire width). This is to keep the overall tire circumference the same so that your speedometer and odometer will still be in calibration.

Physically, you should check to make sure that the wider tire won't rub on anything in the wheel well when the steering wheel is turned lock-to-lock, and when the suspension is at max compression. A tire installer should be able to assess this for you.

On a more aesthetic note, installing wider tires on narrow rims looks good only up to a point. Then they just start looking like fat balloons that stick way out of the fenders. Good luck!