Tire Size Box

225/55R17 vs 225/60R17

225/60R17 compared with 225/55R17

+3.3% diameter, 0.0" width

225/60R17 is 27.63" tall vs 26.74". More than the 3% rule of thumb, so check carefully before switching.

26.7"17" rim4.9"8.9" wide
225/55R17 (solid) compared with 225/60R17 (dashed outline), drawn to scale

With 225/60R17 tires, when your speedometer says 60 mph you are really going

62.0 mph

225/60R17 is +0.89 inches (+3.3%) in overall diameter. That is more than the 3% most shops and makers recommend.

225/55R17225/60R17Difference%
Overall diameter26.74"27.63"+0.89"+3.3%
Section width8.86"8.86"0.00"0.0%
Sidewall height4.87"5.31"+0.44"+9.1%
Circumference84.02"86.80"+2.78"+3.3%
Revolutions per mile754.1729.9−24.2−3.2%

Speedometer difference

If your vehicle came with 225/55R17 and you fit 225/60R17, here is your real speed for each speedometer reading:

Speedometer showsActual speedDifference
20 mph20.7 mph+0.7 mph
30 mph31.0 mph+1.0 mph
40 mph41.3 mph+1.3 mph
50 mph51.7 mph+1.7 mph
60 mph62.0 mph+2.0 mph
65 mph67.2 mph+2.2 mph
70 mph72.3 mph+2.3 mph
75 mph77.5 mph+2.5 mph
80 mph82.6 mph+2.6 mph

Each size on its own

Questions

Which is bigger, 225/55R17 or 225/60R17?
225/60R17 is taller by 0.89 inches (27.63" vs 26.74"). 225/55R17 is the same width.
Can I replace 225/55R17 with 225/60R17?
It is not recommended without checking carefully. The diameter difference is +3.3%, 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 225/60R17 change my speedometer?
When your speedometer reads 60 mph with 225/60R17 fitted (calibrated for 225/55R17), your real speed is 62.0 mph. Your odometer will under-count miles by about 3.3%.
Will 225/60R17 lift my vehicle?
Ride height changes by half the diameter difference: +0.44 inches of ground clearance at the axle.

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