SidewallerTire & wheel calculators

235/35R20 vs 275/35R19

275/35R19 is 0.4% taller (+0.10 in) and 1.57 in wider than 235/35R20.

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Close match

275/35R19 is 0.4% taller than 235/35R20. That is inside the ±3% most shops treat as a straight swap.

235/35R20275/35R19Change
Diameter26.48″26.58″+0.10″+0.4%
Width9.25″10.83″+1.57″+17.0%
Sidewall3.24″3.79″+0.55″+17.0%
Circumference83.2″83.5″+0.3″+0.4%
Wheel20″19″−1″
Revs per mile762759−3
SideTread
235/35R20275/35R19
Speedometer shows 60 mph60.2mph

Real speed on 275/35R19.

Ground clearance+0.05in

Change in height under the axle.

Width per side+0.79in

On the same wheel, split inboard and outboard.

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235/35R20 or 275/35R19?

Can I use 275/35R19 instead of 235/35R20?

275/35R19 is 0.4% taller than 235/35R20. 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 275/35R19 you are really doing 60.2 mph if the speedometer was set up for 235/35R20. Going the other way, 235/35R20 would make it read 59.8 mph at a real 60.

How much ground clearance does it change?

Half the diameter difference: +0.05 in (+1 mm) under the axle.

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