Tire Size Box

175/70R16 vs 195/70R16

195/70R16 compared with 175/70R16

+4.3% diameter, +0.8" width

195/70R16 is 26.75" tall vs 25.65". More than the 3% rule of thumb, so check carefully before switching.

25.6"16" rim4.8"6.9" wide
175/70R16 (solid) compared with 195/70R16 (dashed outline), drawn to scale

With 195/70R16 tires, when your speedometer says 60 mph you are really going

62.6 mph

195/70R16 is +1.10 inches (+4.3%) in overall diameter. That is more than the 3% most shops and makers recommend.

175/70R16195/70R16Difference%
Overall diameter25.65"26.75"+1.10"+4.3%
Section width6.89"7.68"+0.79"+11.4%
Sidewall height4.82"5.37"+0.55"+11.4%
Circumference80.57"84.03"+3.46"+4.3%
Revolutions per mile786.4754.0−32.4−4.1%

Speedometer difference

If your vehicle came with 175/70R16 and you fit 195/70R16, 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 mph41.7 mph+1.7 mph
50 mph52.1 mph+2.1 mph
60 mph62.6 mph+2.6 mph
65 mph67.8 mph+2.8 mph
70 mph73.0 mph+3.0 mph
75 mph78.2 mph+3.2 mph
80 mph83.4 mph+3.4 mph

Each size on its own

Questions

Which is bigger, 175/70R16 or 195/70R16?
195/70R16 is taller by 1.10 inches (26.75" vs 25.65"). 195/70R16 is wider by 0.79 inches.
Can I replace 175/70R16 with 195/70R16?
It is not recommended without checking carefully. The diameter difference is +4.3%, 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 195/70R16 change my speedometer?
When your speedometer reads 60 mph with 195/70R16 fitted (calibrated for 175/70R16), your real speed is 62.6 mph. Your odometer will under-count miles by about 4.3%.
Will 195/70R16 lift my vehicle?
Ride height changes by half the diameter difference: +0.55 inches of ground clearance at the axle.

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