SidewallerTire & wheel calculators

185/60R13 vs 165/70R13

165/70R13 is 1.6% taller (+0.35 in) and 0.79 in narrower than 185/60R13.

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Close match

165/70R13 is 1.6% taller than 185/60R13. That is inside the ±3% most shops treat as a straight swap.

185/60R13165/70R13Change
Diameter21.74″22.09″+0.35″+1.6%
Width7.28″6.50″−0.79″−10.8%
Sidewall4.37″4.55″+0.18″+4.1%
Circumference68.3″69.4″+1.1″+1.6%
Wheel13″13″Same
Revs per mile928913−15
SideTread
185/60R13165/70R13
Speedometer shows 60 mph61.0mph

Real speed on 165/70R13.

Ground clearance+0.18in

Change in height under the axle.

Width per side−0.39in

On the same wheel, split inboard and outboard.

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185/60R13 or 165/70R13?

Can I use 165/70R13 instead of 185/60R13?

165/70R13 is 1.6% taller than 185/60R13. That is inside the ±3% most shops treat as a straight swap. 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 165/70R13 you are really doing 61.0 mph if the speedometer was set up for 185/60R13. Going the other way, 185/60R13 would make it read 59.0 mph at a real 60.

How much ground clearance does it change?

Half the diameter difference: +0.18 in (+5 mm) under the axle.

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