Tire Size Box

215/65R16 vs 215/75R16

215/75R16 compared with 215/65R16

+6.3% diameter, 0.0" width

215/75R16 is 28.70" tall vs 27.00". More than the 3% rule of thumb, so check carefully before switching.

27.0"16" rim5.5"8.5" wide
215/65R16 (solid) compared with 215/75R16 (dashed outline), drawn to scale

With 215/75R16 tires, when your speedometer says 60 mph you are really going

63.8 mph

215/75R16 is +1.69 inches (+6.3%) in overall diameter. That is more than the 3% most shops and makers recommend.

215/65R16215/75R16Difference%
Overall diameter27.00"28.70"+1.69"+6.3%
Section width8.46"8.46"0.00"0.0%
Sidewall height5.50"6.35"+0.85"+15.4%
Circumference84.84"90.15"+5.32"+6.3%
Revolutions per mile746.9702.8−44.1−5.9%

Speedometer difference

If your vehicle came with 215/65R16 and you fit 215/75R16, here is your real speed for each speedometer reading:

Speedometer showsActual speedDifference
20 mph21.3 mph+1.3 mph
30 mph31.9 mph+1.9 mph
40 mph42.5 mph+2.5 mph
50 mph53.1 mph+3.1 mph
60 mph63.8 mph+3.8 mph
65 mph69.1 mph+4.1 mph
70 mph74.4 mph+4.4 mph
75 mph79.7 mph+4.7 mph
80 mph85.0 mph+5.0 mph

Each size on its own

Questions

Which is bigger, 215/65R16 or 215/75R16?
215/75R16 is taller by 1.69 inches (28.70" vs 27.00"). 215/65R16 is the same width.
Can I replace 215/65R16 with 215/75R16?
It is not recommended without checking carefully. The diameter difference is +6.3%, 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 215/75R16 change my speedometer?
When your speedometer reads 60 mph with 215/75R16 fitted (calibrated for 215/65R16), your real speed is 63.8 mph. Your odometer will under-count miles by about 6.3%.
Will 215/75R16 lift my vehicle?
Ride height changes by half the diameter difference: +0.85 inches of ground clearance at the axle.

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