SidewallerTire & wheel calculators

205/60R15 vs 205/70R15

205/70R15 is 6.5% taller (+1.61 in) and the same width than 205/60R15.

Large
Big change

205/70R15 is 6.5% taller than 205/60R15. Beyond 5% you usually need a lift or leveling kit, a speedometer recalibration and sometimes new gears.

205/60R15205/70R15Change
Diameter24.69″26.30″+1.61″+6.5%
Width8.07″8.07″0.00″0.0%
Sidewall4.84″5.65″+0.81″+16.7%
Circumference77.6″82.6″+5.1″+6.5%
Wheel15″15″Same
Revs per mile817767−50
SideTread
205/60R15205/70R15
Speedometer shows 60 mph63.9mph

Real speed on 205/70R15.

Ground clearance+0.81in

Change in height under the axle.

Width per side0.00in

On the same wheel, split inboard and outboard.

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205/60R15 or 205/70R15?

Can I use 205/70R15 instead of 205/60R15?

205/70R15 is 6.5% taller than 205/60R15. 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 205/70R15 you are really doing 63.9 mph if the speedometer was set up for 205/60R15. Going the other way, 205/60R15 would make it read 56.3 mph at a real 60.

How much ground clearance does it change?

Half the diameter difference: +0.81 in (+21 mm) under the axle.

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