Tire Size Box

225/55R16 vs 225/60R16

225/60R16 compared with 225/55R16

+3.4% diameter, 0.0" width

225/60R16 is 26.63" tall vs 25.74". More than the 3% rule of thumb, so check carefully before switching.

25.7"16" rim4.9"8.9" wide
225/55R16 (solid) compared with 225/60R16 (dashed outline), drawn to scale

With 225/60R16 tires, when your speedometer says 60 mph you are really going

62.1 mph

225/60R16 is +0.89 inches (+3.4%) in overall diameter. That is more than the 3% most shops and makers recommend.

225/55R16225/60R16Difference%
Overall diameter25.74"26.63"+0.89"+3.4%
Section width8.86"8.86"0.00"0.0%
Sidewall height4.87"5.31"+0.44"+9.1%
Circumference80.88"83.66"+2.78"+3.4%
Revolutions per mile783.4757.3−26.1−3.3%

Speedometer difference

If your vehicle came with 225/55R16 and you fit 225/60R16, 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 mph41.4 mph+1.4 mph
50 mph51.7 mph+1.7 mph
60 mph62.1 mph+2.1 mph
65 mph67.2 mph+2.2 mph
70 mph72.4 mph+2.4 mph
75 mph77.6 mph+2.6 mph
80 mph82.8 mph+2.8 mph

Each size on its own

Questions

Which is bigger, 225/55R16 or 225/60R16?
225/60R16 is taller by 0.89 inches (26.63" vs 25.74"). 225/55R16 is the same width.
Can I replace 225/55R16 with 225/60R16?
It is not recommended without checking carefully. The diameter difference is +3.4%, 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 225/60R16 change my speedometer?
When your speedometer reads 60 mph with 225/60R16 fitted (calibrated for 225/55R16), your real speed is 62.1 mph. Your odometer will under-count miles by about 3.4%.
Will 225/60R16 lift my vehicle?
Ride height changes by half the diameter difference: +0.44 inches of ground clearance at the axle.

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