SidewallerTire & wheel calculators

33x12.50R20 vs 295/60R20

295/60R20 is 2.8% taller (+0.94 in) and 0.89 in narrower than 33x12.50R20.

OK
Close match

295/60R20 is 2.8% taller than 33x12.50R20. That is inside the ±3% most shops treat as a straight swap.

33x12.50R20295/60R20Change
Diameter33.00″33.94″+0.94″+2.8%
Width12.50″11.61″−0.89″−7.1%
Sidewall6.50″6.97″+0.47″+7.2%
Circumference103.7″106.6″+2.9″+2.8%
Wheel20″20″Same
Revs per mile611594−17
SideTread
33x12.50R20295/60R20
Speedometer shows 60 mph61.7mph

Real speed on 295/60R20.

Ground clearance+0.47in

Change in height under the axle.

Width per side−0.44in

On the same wheel, split inboard and outboard.

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33x12.50R20 or 295/60R20?

Can I use 295/60R20 instead of 33x12.50R20?

295/60R20 is 2.8% taller than 33x12.50R20. That is inside the ±3% most shops treat as a straight swap. 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 61.7 mph if the speedometer was set up for 33x12.50R20. Going the other way, 33x12.50R20 would make it read 58.3 mph at a real 60.

How much ground clearance does it change?

Half the diameter difference: +0.47 in (+12 mm) under the axle.

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