Tire Size Box

195/55R15 vs 195/60R15

195/60R15 compared with 195/55R15

+3.3% diameter, 0.0" width

195/60R15 is 24.21" tall vs 23.44". More than the 3% rule of thumb, so check carefully before switching.

23.4"15" rim4.2"7.7" wide
195/55R15 (solid) compared with 195/60R15 (dashed outline), drawn to scale

With 195/60R15 tires, when your speedometer says 60 mph you are really going

62.0 mph

195/60R15 is +0.77 inches (+3.3%) in overall diameter. That is more than the 3% most shops and makers recommend.

195/55R15195/60R15Difference%
Overall diameter23.44"24.21"+0.77"+3.3%
Section width7.68"7.68"0.00"0.0%
Sidewall height4.22"4.61"+0.38"+9.1%
Circumference73.65"76.07"+2.41"+3.3%
Revolutions per mile860.2833.0−27.3−3.2%

Speedometer difference

If your vehicle came with 195/55R15 and you fit 195/60R15, 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 mph51.6 mph+1.6 mph
60 mph62.0 mph+2.0 mph
65 mph67.1 mph+2.1 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, 195/55R15 or 195/60R15?
195/60R15 is taller by 0.77 inches (24.21" vs 23.44"). 195/55R15 is the same width.
Can I replace 195/55R15 with 195/60R15?
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 195/60R15 change my speedometer?
When your speedometer reads 60 mph with 195/60R15 fitted (calibrated for 195/55R15), your real speed is 62.0 mph. Your odometer will under-count miles by about 3.3%.
Will 195/60R15 lift my vehicle?
Ride height changes by half the diameter difference: +0.38 inches of ground clearance at the axle.

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