UBBFriend: Email This Page to Someone!
  AutoPedia® Bulletin Board System
  Tires
  How to convert metric to inches?

Post New Topic  Post A Reply
profile | register | preferences | faq | search

next newest topic | next oldest topic
Author Topic:   How to convert metric to inches?
RocK
unregistered
posted November 30, 1999 07:51 AM           Edit/Delete Message Reply w/Quote
There seems to be quite a few questions on converting metric tire sizes to inches. Does anyone know the formula?
What is a 255 / 65 /16 in inches?

IP: Logged

Jeff
unregistered
posted November 30, 1999 08:23 AM           Edit/Delete Message Reply w/Quote
One inch = 25.4mm The first number is the width of the tire in mm. The second number is the sidewall height as a fraction of the width (i.e. 0.65 x 255 = 165.75mm). The tires total sidewall height is then 2 x 165.75 = 331.5mm. This is 13.1 inches. Add this to the 16 inch rim diameter and you get 29.1 inches as the overall diameter of the mounted tire.

IP: Logged

Marc
unregistered
posted December 01, 1999 03:37 AM           Edit/Delete Message Reply w/Quote
Jeff, you must be a pro, bulls eye. For you
Rock, if you need to calculate the diameter,
you are probably looking for a replacement
size. You are for sure driving either a
Mercedez ML320, 2000 Nissan Pathfinder SE or
an Infinity QX4. Replacement size is for those vehicules 235/70R16.

IP: Logged

Rock
unregistered
posted December 02, 1999 06:47 AM           Edit/Delete Message Reply w/Quote
Thanks Jeff

You're close Marc, 2000 Frontier SE

IP: Logged

All times are ET (US)

next newest topic | next oldest topic

Administrative Options: Close Topic | Archive/Move | Delete Topic
Post New Topic  Post A Reply
Hop to:

Contact Us | AutoPedia® - The Automotive Encyclopedia

Copyright ©1995-2008 by AUTOPEDIA®, all rights reserved. AUTOPEDIA®, AUTO411™, CAR-IQ™, DEALERPEDIA™, UNILOT™, SIMULSEARCH™ and INTERQUOTE-RFP™ are trademarks of AUTOPEDIA. All other trademarks, tradenames and/or service marks are the property of their respective holders.

Powered by: Ultimate Bulletin Board, Version 5.41
© Infopop Corporation (formerly Madrona Park, Inc.), 1998 - 1999.