Tire Size Box

285/60R16 vs 285/65R16

285/65R16 compared with 285/60R16

+3.8% diameter, 0.0" width

285/65R16 is 30.59" tall vs 29.46". More than the 3% rule of thumb, so check carefully before switching.

29.5"16" rim6.7"11.2" wide
285/60R16 (solid) compared with 285/65R16 (dashed outline), drawn to scale

With 285/65R16 tires, when your speedometer says 60 mph you are really going

62.3 mph

285/65R16 is +1.12 inches (+3.8%) in overall diameter. That is more than the 3% most shops and makers recommend.

285/60R16285/65R16Difference%
Overall diameter29.46"30.59"+1.12"+3.8%
Section width11.22"11.22"0.00"0.0%
Sidewall height6.73"7.29"+0.56"+8.3%
Circumference92.57"96.09"+3.53"+3.8%
Revolutions per mile684.5659.4−25.1−3.7%

Speedometer difference

If your vehicle came with 285/60R16 and you fit 285/65R16, here is your real speed for each speedometer reading:

Speedometer showsActual speedDifference
20 mph20.8 mph+0.8 mph
30 mph31.1 mph+1.1 mph
40 mph41.5 mph+1.5 mph
50 mph51.9 mph+1.9 mph
60 mph62.3 mph+2.3 mph
65 mph67.5 mph+2.5 mph
70 mph72.7 mph+2.7 mph
75 mph77.9 mph+2.9 mph
80 mph83.0 mph+3.0 mph

Each size on its own

Questions

Which is bigger, 285/60R16 or 285/65R16?
285/65R16 is taller by 1.12 inches (30.59" vs 29.46"). 285/60R16 is the same width.
Can I replace 285/60R16 with 285/65R16?
It is not recommended without checking carefully. The diameter difference is +3.8%, 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 285/65R16 change my speedometer?
When your speedometer reads 60 mph with 285/65R16 fitted (calibrated for 285/60R16), your real speed is 62.3 mph. Your odometer will under-count miles by about 3.8%.
Will 285/65R16 lift my vehicle?
Ride height changes by half the diameter difference: +0.56 inches of ground clearance at the axle.

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