SidewallerTire & wheel calculators

275/55R20 vs 295/60R20

295/60R20 is 6.4% taller (+2.03 in) and 0.79 in wider than 275/55R20.

Large
Big change

295/60R20 is 6.4% taller than 275/55R20. Beyond 5% you usually need a lift or leveling kit, a speedometer recalibration and sometimes new gears.

275/55R20295/60R20Change
Diameter31.91″33.94″+2.03″+6.4%
Width10.83″11.61″+0.79″+7.3%
Sidewall5.95″6.97″+1.01″+17.0%
Circumference100.2″106.6″+6.4″+6.4%
Wheel20″20″Same
Revs per mile632594−38
SideTread
275/55R20295/60R20
Speedometer shows 60 mph63.8mph

Real speed on 295/60R20.

Ground clearance+1.01in

Change in height under the axle.

Width per side+0.39in

On the same wheel, split inboard and outboard.

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275/55R20 or 295/60R20?

Can I use 295/60R20 instead of 275/55R20?

295/60R20 is 6.4% taller than 275/55R20. 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 295/60R20 you are really doing 63.8 mph if the speedometer was set up for 275/55R20. Going the other way, 275/55R20 would make it read 56.4 mph at a real 60.

How much ground clearance does it change?

Half the diameter difference: +1.01 in (+26 mm) under the axle.

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