Tire Size Box

195/75R15 vs 215/75R15

215/75R15 compared with 195/75R15

+4.5% diameter, +0.8" width

215/75R15 is 27.70" tall vs 26.52". More than the 3% rule of thumb, so check carefully before switching.

26.5"15" rim5.8"7.7" wide
195/75R15 (solid) compared with 215/75R15 (dashed outline), drawn to scale

With 215/75R15 tires, when your speedometer says 60 mph you are really going

62.7 mph

215/75R15 is +1.18 inches (+4.5%) in overall diameter. That is more than the 3% most shops and makers recommend.

195/75R15215/75R15Difference%
Overall diameter26.52"27.70"+1.18"+4.5%
Section width7.68"8.46"+0.79"+10.3%
Sidewall height5.76"6.35"+0.59"+10.3%
Circumference83.30"87.01"+3.71"+4.5%
Revolutions per mile760.6728.2−32.4−4.3%

Speedometer difference

If your vehicle came with 195/75R15 and you fit 215/75R15, 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 mph78.3 mph+3.3 mph
80 mph83.6 mph+3.6 mph

Each size on its own

Questions

Which is bigger, 195/75R15 or 215/75R15?
215/75R15 is taller by 1.18 inches (27.70" vs 26.52"). 215/75R15 is wider by 0.79 inches.
Can I replace 195/75R15 with 215/75R15?
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 215/75R15 change my speedometer?
When your speedometer reads 60 mph with 215/75R15 fitted (calibrated for 195/75R15), your real speed is 62.7 mph. Your odometer will under-count miles by about 4.5%.
Will 215/75R15 lift my vehicle?
Ride height changes by half the diameter difference: +0.59 inches of ground clearance at the axle.

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