SidewallerTire & wheel calculators

185/60R13 vs 175/70R13

175/70R13 is 4.2% taller (+0.91 in) and 0.39 in narrower than 185/60R13.

Caution
Check before you buy

175/70R13 is 4.2% taller than 185/60R13. It often still fits, but expect a noticeable speedometer error and check clearance at full steering lock.

185/60R13175/70R13Change
Diameter21.74″22.65″+0.91″+4.2%
Width7.28″6.89″−0.39″−5.4%
Sidewall4.37″4.82″+0.45″+10.4%
Circumference68.3″71.1″+2.8″+4.2%
Wheel13″13″Same
Revs per mile928891−37
SideTread
185/60R13175/70R13
Speedometer shows 60 mph62.5mph

Real speed on 175/70R13.

Ground clearance+0.45in

Change in height under the axle.

Width per side−0.20in

On the same wheel, split inboard and outboard.

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185/60R13 or 175/70R13?

Can I use 175/70R13 instead of 185/60R13?

175/70R13 is 4.2% taller than 185/60R13. 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 175/70R13 you are really doing 62.5 mph if the speedometer was set up for 185/60R13. Going the other way, 185/60R13 would make it read 57.6 mph at a real 60.

How much ground clearance does it change?

Half the diameter difference: +0.45 in (+12 mm) under the axle.

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