SidewallerTire & wheel calculators

155/70R13 vs 165/70R13

165/70R13 is 2.6% taller (+0.55 in) and 0.39 in wider than 155/70R13.

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Close match

165/70R13 is 2.6% taller than 155/70R13. That is inside the ±3% most shops treat as a straight swap.

155/70R13165/70R13Change
Diameter21.54″22.09″+0.55″+2.6%
Width6.10″6.50″+0.39″+6.5%
Sidewall4.27″4.55″+0.28″+6.5%
Circumference67.7″69.4″+1.7″+2.6%
Wheel13″13″Same
Revs per mile936913−23
SideTread
155/70R13165/70R13
Speedometer shows 60 mph61.5mph

Real speed on 165/70R13.

Ground clearance+0.28in

Change in height under the axle.

Width per side+0.20in

On the same wheel, split inboard and outboard.

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155/70R13 or 165/70R13?

Can I use 165/70R13 instead of 155/70R13?

165/70R13 is 2.6% taller than 155/70R13. 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 61.5 mph if the speedometer was set up for 155/70R13. Going the other way, 155/70R13 would make it read 58.5 mph at a real 60.

How much ground clearance does it change?

Half the diameter difference: +0.28 in (+7 mm) under the axle.

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