SidewallerTire & wheel calculators

265/50R19 vs 245/60R18

245/60R18 is 0.5% taller (+0.14 in) and 0.79 in narrower than 265/50R19.

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Close match

245/60R18 is 0.5% taller than 265/50R19. That is inside the ±3% most shops treat as a straight swap.

265/50R19245/60R18Change
Diameter29.43″29.57″+0.14″+0.5%
Width10.43″9.65″−0.79″−7.5%
Sidewall5.22″5.79″+0.57″+10.9%
Circumference92.5″92.9″+0.4″+0.5%
Wheel19″18″−1″
Revs per mile685682−3
SideTread
265/50R19245/60R18
Speedometer shows 60 mph60.3mph

Real speed on 245/60R18.

Ground clearance+0.07in

Change in height under the axle.

Width per side−0.39in

On the same wheel, split inboard and outboard.

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265/50R19 or 245/60R18?

Can I use 245/60R18 instead of 265/50R19?

245/60R18 is 0.5% taller than 265/50R19. 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 245/60R18 you are really doing 60.3 mph if the speedometer was set up for 265/50R19. Going the other way, 265/50R19 would make it read 59.7 mph at a real 60.

How much ground clearance does it change?

Half the diameter difference: +0.07 in (+2 mm) under the axle.

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