SidewallerTire & wheel calculators

255/35R19 vs 225/45R19

225/45R19 is 3.6% taller (+0.94 in) and 1.18 in narrower than 255/35R19.

Caution
Check before you buy

225/45R19 is 3.6% taller than 255/35R19. It often still fits, but expect a noticeable speedometer error and check clearance at full steering lock.

255/35R19225/45R19Change
Diameter26.03″26.97″+0.94″+3.6%
Width10.04″8.86″−1.18″−11.8%
Sidewall3.51″3.99″+0.47″+13.4%
Circumference81.8″84.7″+3.0″+3.6%
Wheel19″19″Same
Revs per mile775748−27
SideTread
255/35R19225/45R19
Speedometer shows 60 mph62.2mph

Real speed on 225/45R19.

Ground clearance+0.47in

Change in height under the axle.

Width per side−0.59in

On the same wheel, split inboard and outboard.

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255/35R19 or 225/45R19?

Can I use 225/45R19 instead of 255/35R19?

225/45R19 is 3.6% taller than 255/35R19. 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 225/45R19 you are really doing 62.2 mph if the speedometer was set up for 255/35R19. Going the other way, 255/35R19 would make it read 57.9 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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