SidewallerTire & wheel calculators

165/65R14 vs 185/65R14

185/65R14 is 4.6% taller (+1.02 in) and 0.79 in wider than 165/65R14.

Caution
Check before you buy

185/65R14 is 4.6% taller than 165/65R14. It often still fits, but expect a noticeable speedometer error and check clearance at full steering lock.

165/65R14185/65R14Change
Diameter22.44″23.47″+1.02″+4.6%
Width6.50″7.28″+0.79″+12.1%
Sidewall4.22″4.73″+0.51″+12.1%
Circumference70.5″73.7″+3.2″+4.6%
Wheel14″14″Same
Revs per mile899859−39
SideTread
165/65R14185/65R14
Speedometer shows 60 mph62.7mph

Real speed on 185/65R14.

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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165/65R14 or 185/65R14?

Can I use 185/65R14 instead of 165/65R14?

185/65R14 is 4.6% taller than 165/65R14. 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 185/65R14 you are really doing 62.7 mph if the speedometer was set up for 165/65R14. Going the other way, 165/65R14 would make it read 57.4 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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