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The results of this calculator are based on the mathematical equations of the sizes
entered, not the actual tire specs provided by the tire manufacturers. Please refer to the guides
supplied by manufacturers for exact specifications.
Not for use with high flotation sizes, i.e. 31x10.50R-15.
Fill out this section if you would like specs on just one tire size.
What size is being run now?
Would you like to compare it to another size? Enter new size below.
What size would you like to run?
Totals are in inches
Revs per mile:
If your speedometer reads:
You're going approximately:
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Known in Oregon & Parts of California as America's Tire