SidewallerTire & wheel calculators

155/70R13 vs 175/70R13

175/70R13 is 5.1% taller (+1.10 in) and 0.79 in wider than 155/70R13.

Large
Big change

175/70R13 is 5.1% taller than 155/70R13. Beyond 5% you usually need a lift or leveling kit, a speedometer recalibration and sometimes new gears.

155/70R13175/70R13Change
Diameter21.54″22.65″+1.10″+5.1%
Width6.10″6.89″+0.79″+12.9%
Sidewall4.27″4.82″+0.55″+12.9%
Circumference67.7″71.1″+3.5″+5.1%
Wheel13″13″Same
Revs per mile936891−46
SideTread
155/70R13175/70R13
Speedometer shows 60 mph63.1mph

Real speed on 175/70R13.

Ground clearance+0.55in

Change in height under the axle.

Width per side+0.39in

On the same wheel, split inboard and outboard.

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155/70R13 or 175/70R13?

Can I use 175/70R13 instead of 155/70R13?

175/70R13 is 5.1% taller than 155/70R13. Beyond 5% you usually need a lift or leveling kit, a speedometer recalibration and sometimes new gears. 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 63.1 mph if the speedometer was set up for 155/70R13. Going the other way, 155/70R13 would make it read 57.1 mph at a real 60.

How much ground clearance does it change?

Half the diameter difference: +0.55 in (+14 mm) under the axle.

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