SidewallerTire & wheel calculators

245/65R17 vs 265/65R17

265/65R17 is 3.5% taller (+1.02 in) and 0.79 in wider than 245/65R17.

Caution
Check before you buy

265/65R17 is 3.5% taller than 245/65R17. It often still fits, but expect a noticeable speedometer error and check clearance at full steering lock.

245/65R17265/65R17Change
Diameter29.54″30.56″+1.02″+3.5%
Width9.65″10.43″+0.79″+8.2%
Sidewall6.27″6.78″+0.51″+8.2%
Circumference92.8″96.0″+3.2″+3.5%
Wheel17″17″Same
Revs per mile683660−23
SideTread
245/65R17265/65R17
Speedometer shows 60 mph62.1mph

Real speed on 265/65R17.

Ground clearance+0.51in

Change in height under the axle.

Width per side+0.39in

On the same wheel, split inboard and outboard.

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245/65R17 or 265/65R17?

Can I use 265/65R17 instead of 245/65R17?

265/65R17 is 3.5% taller than 245/65R17. It often still fits, but expect a noticeable speedometer error and check clearance at full steering lock. Also match or beat the original load index and speed rating, and check that the wheel width suits the new tire.

Will my speedometer be off?

At an indicated 60 mph on 265/65R17 you are really doing 62.1 mph if the speedometer was set up for 245/65R17. Going the other way, 245/65R17 would make it read 58.0 mph at a real 60.

How much ground clearance does it change?

Half the diameter difference: +0.51 in (+13 mm) under the axle.

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