195/65R16 vs 195/75R16

195/75R16 compared with 195/65R16

+5.9% diameter, 0.0" width

195/75R16 is 27.52" tall vs 25.98". More than the 3% rule of thumb, so check carefully before switching.

26.0"16" rim5.0"7.7" wide
195/65R16 (solid) compared with 195/75R16 (dashed outline), drawn to scale

With 195/75R16 tires, when your speedometer says 60 mph you are really going

63.5 mph

195/75R16 is +1.54 inches (+5.9%) in overall diameter. That is more than the 3% most shops and makers recommend.

195/65R16195/75R16Difference%
Overall diameter25.98"27.52"+1.54"+5.9%
Section width7.68"7.68"0.00"0.0%
Sidewall height4.99"5.76"+0.77"+15.4%
Circumference81.62"86.44"+4.82"+5.9%
Revolutions per mile776.3733.0−43.3−5.6%

Speedometer difference

If your vehicle came with 195/65R16 and you fit 195/75R16, here is your real speed for each speedometer reading:

Speedometer showsActual speedDifference
20 mph21.2 mph+1.2 mph
30 mph31.8 mph+1.8 mph
40 mph42.4 mph+2.4 mph
50 mph53.0 mph+3.0 mph
60 mph63.5 mph+3.5 mph
65 mph68.8 mph+3.8 mph
70 mph74.1 mph+4.1 mph
75 mph79.4 mph+4.4 mph
80 mph84.7 mph+4.7 mph

Each size on its own

Questions

Which is bigger, 195/65R16 or 195/75R16?
195/75R16 is taller by 1.54 inches (27.52" vs 25.98"). 195/65R16 is the same width.
Can I replace 195/65R16 with 195/75R16?
It is not recommended without checking carefully. The diameter difference is +5.9%, 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 195/75R16 change my speedometer?
When your speedometer reads 60 mph with 195/75R16 fitted (calibrated for 195/65R16), your real speed is 63.5 mph. Your odometer will under-count miles by about 5.9%.
Will 195/75R16 lift my vehicle?
Ride height changes by half the diameter difference: +0.77 inches of ground clearance at the axle.

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