Tire Size Box

285/55R19 vs 285/60R19

285/60R19 compared with 285/55R19

+3.6% diameter, 0.0" width

285/60R19 is 32.46" tall vs 31.34". More than the 3% rule of thumb, so check carefully before switching.

31.3"19" rim6.2"11.2" wide
285/55R19 (solid) compared with 285/60R19 (dashed outline), drawn to scale

With 285/60R19 tires, when your speedometer says 60 mph you are really going

62.1 mph

285/60R19 is +1.12 inches (+3.6%) in overall diameter. That is more than the 3% most shops and makers recommend.

285/55R19285/60R19Difference%
Overall diameter31.34"32.46"+1.12"+3.6%
Section width11.22"11.22"0.00"0.0%
Sidewall height6.17"6.73"+0.56"+9.1%
Circumference98.47"101.99"+3.53"+3.6%
Revolutions per mile643.5621.2−22.2−3.5%

Speedometer difference

If your vehicle came with 285/55R19 and you fit 285/60R19, here is your real speed for each speedometer reading:

Speedometer showsActual speedDifference
20 mph20.7 mph+0.7 mph
30 mph31.1 mph+1.1 mph
40 mph41.4 mph+1.4 mph
50 mph51.8 mph+1.8 mph
60 mph62.1 mph+2.1 mph
65 mph67.3 mph+2.3 mph
70 mph72.5 mph+2.5 mph
75 mph77.7 mph+2.7 mph
80 mph82.9 mph+2.9 mph

Each size on its own

Questions

Which is bigger, 285/55R19 or 285/60R19?
285/60R19 is taller by 1.12 inches (32.46" vs 31.34"). 285/55R19 is the same width.
Can I replace 285/55R19 with 285/60R19?
It is not recommended without checking carefully. The diameter difference is +3.6%, 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 285/60R19 change my speedometer?
When your speedometer reads 60 mph with 285/60R19 fitted (calibrated for 285/55R19), your real speed is 62.1 mph. Your odometer will under-count miles by about 3.6%.
Will 285/60R19 lift my vehicle?
Ride height changes by half the diameter difference: +0.56 inches of ground clearance at the axle.

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