The chart I use shows a less than 2% diff...but tire size can vary considerably from
brand to brand, and results are nominal using different tire sizing guides.
GL, mD

Tire size calculator

__________________
Ol'UncleMotor
From the Home Base of Pro Bono Punditry
and 50 Cent Opins...

Our Mtn Scenes, Car Pics, and Road Trip Pics on Flickr:
http://www.flickr.com/photos/4527537...7627297418250/
http://www.flickr.com/photos/4527537...7627332480833/

http://www.flickr.com/photos/45275375@N00/

My X Page