SidewallerTire & wheel calculators

205/70R15 vs 225/70R15

225/70R15 is 4.2% taller (+1.10 in) and 0.79 in wider than 205/70R15.

Caution
Check before you buy

225/70R15 is 4.2% taller than 205/70R15. It often still fits, but expect a noticeable speedometer error and check clearance at full steering lock.

205/70R15225/70R15Change
Diameter26.30″27.40″+1.10″+4.2%
Width8.07″8.86″+0.79″+9.8%
Sidewall5.65″6.20″+0.55″+9.8%
Circumference82.6″86.1″+3.5″+4.2%
Wheel15″15″Same
Revs per mile767736−31
SideTread
205/70R15225/70R15
Speedometer shows 60 mph62.5mph

Real speed on 225/70R15.

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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205/70R15 or 225/70R15?

Can I use 225/70R15 instead of 205/70R15?

225/70R15 is 4.2% taller than 205/70R15. 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 225/70R15 you are really doing 62.5 mph if the speedometer was set up for 205/70R15. Going the other way, 205/70R15 would make it read 57.6 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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