For those of us playing with tire sizes

[mr. fix it]

215/70-R14 vs 225/70-R15 Tire Comparison - Tire Size Calculator | Tacoma World

I found this tire sizing tool on line today while shopping tires

it gives a good comparison from old to new.

 

[rexus31]

See my thread on this very topic.

Getting New Tires

 

[mr. fix it]

I did not know that you had posted on the very same topic.

 

[Fratzog]

FYI another chart with diameters.
Tire Size Cross Referencing Chart | Diamond Back Classic White Wall Tires - Vintage Tires - Redline & Redline Radial Tires for Antique and Classic Cars