Tire Size Box

245/60R19 vs 265/60R19

265/60R19 compared with 245/60R19

+3.1% diameter, +0.8" width

265/60R19 is 31.52" tall vs 30.57". More than the 3% rule of thumb, so check carefully before switching.

30.6"19" rim5.8"9.6" wide
245/60R19 (solid) compared with 265/60R19 (dashed outline), drawn to scale

With 265/60R19 tires, when your speedometer says 60 mph you are really going

61.9 mph

265/60R19 is +0.94 inches (+3.1%) in overall diameter. That is more than the 3% most shops and makers recommend.

245/60R19265/60R19Difference%
Overall diameter30.57"31.52"+0.94"+3.1%
Section width9.65"10.43"+0.79"+8.2%
Sidewall height5.79"6.26"+0.47"+8.2%
Circumference96.05"99.02"+2.97"+3.1%
Revolutions per mile659.6639.9−19.8−3.0%

Speedometer difference

If your vehicle came with 245/60R19 and you fit 265/60R19, here is your real speed for each speedometer reading:

Speedometer showsActual speedDifference
20 mph20.6 mph+0.6 mph
30 mph30.9 mph+0.9 mph
40 mph41.2 mph+1.2 mph
50 mph51.5 mph+1.5 mph
60 mph61.9 mph+1.9 mph
65 mph67.0 mph+2.0 mph
70 mph72.2 mph+2.2 mph
75 mph77.3 mph+2.3 mph
80 mph82.5 mph+2.5 mph

Each size on its own

Questions

Which is bigger, 245/60R19 or 265/60R19?
265/60R19 is taller by 0.94 inches (31.52" vs 30.57"). 265/60R19 is wider by 0.79 inches.
Can I replace 245/60R19 with 265/60R19?
It is not recommended without checking carefully. The diameter difference is +3.1%, more than the 3% most shops and makers allow. It will throw off the speedometer and may affect ABS, stability control and clearance.
How much will 265/60R19 change my speedometer?
When your speedometer reads 60 mph with 265/60R19 fitted (calibrated for 245/60R19), your real speed is 61.9 mph. Your odometer will under-count miles by about 3.1%.
Will 265/60R19 lift my vehicle?
Ride height changes by half the diameter difference: +0.47 inches of ground clearance at the axle.

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