Unfortunately, no one here has any idea either--the tire diameter is a critical element of the roll-out puzzle.

Do yourself an ENORMOUS favor if you have a Harbor Freight in your village go there and pick up a digital caliper. A 6" caliper is almost always on sale for $16, and if it's not on sale it's a whopping $20. I've found I prefer an 8" ($30, though they're now on sale for $23!!) so I can measure overall widths, but for over 90% of your 1/12 measuring the 6" are just the ticket.

If you don't have a HF in your village you can buy online. Check the calipers

6" caliper at Harbor Freight

8" caliper at Harbor Freight

A caliper is a MUST HAVE tool. THEN you'll always know what your tire diameters are and we'll have to point you to the roll-out chart generators.