SidewallerTire & wheel calculators

215/65R15 vs 225/40R19

225/40R19 is 0.3% taller (+0.08 in) and 0.39 in wider than 215/65R15.

OK
Close match

225/40R19 is 0.3% taller than 215/65R15. That is inside the ±3% most shops treat as a straight swap.

215/65R15225/40R19Change
Diameter26.00″26.09″+0.08″+0.3%
Width8.46″8.86″+0.39″+4.7%
Sidewall5.50″3.54″−1.96″−35.6%
Circumference81.7″82.0″+0.3″+0.3%
Wheel15″19″+4″
Revs per mile776773−2
SideTread
215/65R15225/40R19
Speedometer shows 60 mph60.2mph

Real speed on 225/40R19.

Ground clearance+0.04in

Change in height under the axle.

Width per side+0.20in

On the same wheel, split inboard and outboard.

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215/65R15 or 225/40R19?

Can I use 225/40R19 instead of 215/65R15?

225/40R19 is 0.3% taller than 215/65R15. 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 225/40R19 you are really doing 60.2 mph if the speedometer was set up for 215/65R15. Going the other way, 215/65R15 would make it read 59.8 mph at a real 60.

How much ground clearance does it change?

Half the diameter difference: +0.04 in (+1 mm) under the axle.

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