Tire Size Box

175/75R16 vs 195/75R16

195/75R16 compared with 175/75R16

+4.5% diameter, +0.8" width

195/75R16 is 27.52" tall vs 26.33". More than the 3% rule of thumb, so check carefully before switching.

26.3"16" rim5.2"6.9" wide
175/75R16 (solid) compared with 195/75R16 (dashed outline), drawn to scale

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

62.7 mph

195/75R16 is +1.18 inches (+4.5%) in overall diameter. That is more than the 3% most shops and makers recommend.

175/75R16195/75R16Difference%
Overall diameter26.33"27.52"+1.18"+4.5%
Section width6.89"7.68"+0.79"+11.4%
Sidewall height5.17"5.76"+0.59"+11.4%
Circumference82.73"86.44"+3.71"+4.5%
Revolutions per mile765.8733.0−32.9−4.3%

Speedometer difference

If your vehicle came with 175/75R16 and you fit 195/75R16, here is your real speed for each speedometer reading:

Speedometer showsActual speedDifference
20 mph20.9 mph+0.9 mph
30 mph31.3 mph+1.3 mph
40 mph41.8 mph+1.8 mph
50 mph52.2 mph+2.2 mph
60 mph62.7 mph+2.7 mph
65 mph67.9 mph+2.9 mph
70 mph73.1 mph+3.1 mph
75 mph78.4 mph+3.4 mph
80 mph83.6 mph+3.6 mph

Each size on its own

Questions

Which is bigger, 175/75R16 or 195/75R16?
195/75R16 is taller by 1.18 inches (27.52" vs 26.33"). 195/75R16 is wider by 0.79 inches.
Can I replace 175/75R16 with 195/75R16?
It is not recommended without checking carefully. The diameter difference is +4.5%, 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 175/75R16), your real speed is 62.7 mph. Your odometer will under-count miles by about 4.5%.
Will 195/75R16 lift my vehicle?
Ride height changes by half the diameter difference: +0.59 inches of ground clearance at the axle.

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