Metric to Standard Tire Calculator

So I got sick of calculating what tire size a metric tire was. I can always guess but I would rather be exact.

So I made an excel sheet that shows you what almost every possible combination between tire width and Aspect ratio there could be.


How it works:

1. Put your desired wheel size in the box on the far right labeled "What size is your Rim?" (In this example 16" wheel)
   
   [*]Look for the desired standard tire size in the table (In this examble I want about a 33X12-16 tire -- the charts 32.5X11.8-16 tire matches my needs best)
   
   [*]At the far left of the row you selected is the width of the tire and the first number of the metric tire size. (In this example the width is 300mm)
   
   [*]At top of the column you selected is the aspect ratio and the second number of the metric tire size. (in this example the aspect ratio is 70)
   
   [*]Your rim size is the final number of the metric tire size (in this example the rim size is 16")
   

So in looking for a 33X12-16 tire, I would like to find a 300/70-16 in a metric tire size.

Please feel free to let me know if you think anything should be added changed or just give me your general impressions.

 

Yes you can, and in a way it gives you much more info than mine (props to tcBob) but mine lets you see the entire range of tire you can get for a particular wheel size. Just take a look at it if you like it cool if not no big deal.

sidebar: Im going to use this post for to attach pictures to be used in the OP

 

just noticed the file wasn't working. I updated it. let me know if it works for ya.

 

That would be awesome! What ever you want to do with it!