SidewallerTire & wheel calculators

215/70R16 vs 255/65R16

255/65R16 is 4.3% taller (+1.20 in) and 1.57 in wider than 215/70R16.

Caution
Check before you buy

255/65R16 is 4.3% taller than 215/70R16. It often still fits, but expect a noticeable speedometer error and check clearance at full steering lock.

215/70R16255/65R16Change
Diameter27.85″29.05″+1.20″+4.3%
Width8.46″10.04″+1.57″+18.6%
Sidewall5.93″6.53″+0.60″+10.1%
Circumference87.5″91.3″+3.8″+4.3%
Wheel16″16″Same
Revs per mile724694−30
SideTread
215/70R16255/65R16
Speedometer shows 60 mph62.6mph

Real speed on 255/65R16.

Ground clearance+0.60in

Change in height under the axle.

Width per side+0.79in

On the same wheel, split inboard and outboard.

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215/70R16 or 255/65R16?

Can I use 255/65R16 instead of 215/70R16?

255/65R16 is 4.3% taller than 215/70R16. 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 255/65R16 you are really doing 62.6 mph if the speedometer was set up for 215/70R16. Going the other way, 215/70R16 would make it read 57.5 mph at a real 60.

How much ground clearance does it change?

Half the diameter difference: +0.60 in (+15 mm) under the axle.

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