Tacoma (5 lug) Tire Size Question

I'm hoping I'm not asking a duplicate question here, my apologies if I am.
The situation is this:
I have a 2012 Taco 5 lug.
I know the max tire size I can use without any mods is 235/75/15 which is what I was going to with to once the factory tires were worn, however, I got a great deal on some alloy wheels in 16's. The wheels fit great on the truck. Backspacing, bore etc are perfect and the new wheels are currently on the truck.
The question is:
What is the max tire size in 16's? The width would be the same I am guessing (Feel free to correct me if not) but I don't know what the new aspect ratio would be. I tried to find a calculator for this purpose but none seemed right for my particular question.
Any help would be greatly appreciated.

 

Ouch.... Nothing?

 

i would suggest if you can find them, some 235/65/16

 

Most of us are still waking up.
Just under the top banner is a part called mods and tutorials, open it, at the bottom of the list is a tire size calculator, fun tool. As MIA said, that size is real close.

 

Ah cool. Thanks!

 

I ended up putting some 235/75/16's on it after removing the black boxes. The ground clearance is significantly better and it looks more like what I think it should
Thanks for the help guys.
(Sorry about the bad quality of the initial photo)

 

Looks great! The tiny sized stock rims & tires look out of proportion to the size of the truck.