Tire Size Box

245/55R16 vs 245/60R16

245/60R16 compared with 245/55R16

+3.6% diameter, 0.0" width

245/60R16 is 27.57" tall vs 26.61". More than the 3% rule of thumb, so check carefully before switching.

26.6"16" rim5.3"9.6" wide
245/55R16 (solid) compared with 245/60R16 (dashed outline), drawn to scale

With 245/60R16 tires, when your speedometer says 60 mph you are really going

62.2 mph

245/60R16 is +0.96 inches (+3.6%) in overall diameter. That is more than the 3% most shops and makers recommend.

245/55R16245/60R16Difference%
Overall diameter26.61"27.57"+0.96"+3.6%
Section width9.65"9.65"0.00"0.0%
Sidewall height5.31"5.79"+0.48"+9.1%
Circumference83.60"86.63"+3.03"+3.6%
Revolutions per mile757.9731.4−26.5−3.5%

Speedometer difference

If your vehicle came with 245/55R16 and you fit 245/60R16, 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 mph62.2 mph+2.2 mph
65 mph67.4 mph+2.4 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, 245/55R16 or 245/60R16?
245/60R16 is taller by 0.96 inches (27.57" vs 26.61"). 245/55R16 is the same width.
Can I replace 245/55R16 with 245/60R16?
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 245/60R16 change my speedometer?
When your speedometer reads 60 mph with 245/60R16 fitted (calibrated for 245/55R16), your real speed is 62.2 mph. Your odometer will under-count miles by about 3.6%.
Will 245/60R16 lift my vehicle?
Ride height changes by half the diameter difference: +0.48 inches of ground clearance at the axle.

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