Tire Size Box

195/75R14 vs 195/80R14

195/80R14 compared with 195/75R14

+3.0% diameter, 0.0" width

195/80R14 is 26.28" tall vs 25.52". More than the 3% rule of thumb, so check carefully before switching.

25.5"14" rim5.8"7.7" wide
195/75R14 (solid) compared with 195/80R14 (dashed outline), drawn to scale

With 195/80R14 tires, when your speedometer says 60 mph you are really going

61.8 mph

195/80R14 is +0.77 inches (+3.0%) in overall diameter. That is more than the 3% most shops and makers recommend.

195/75R14195/80R14Difference%
Overall diameter25.52"26.28"+0.77"+3.0%
Section width7.68"7.68"0.00"0.0%
Sidewall height5.76"6.14"+0.38"+6.7%
Circumference80.16"82.57"+2.41"+3.0%
Revolutions per mile790.4767.3−23.1−2.9%

Speedometer difference

If your vehicle came with 195/75R14 and you fit 195/80R14, here is your real speed for each speedometer reading:

Speedometer showsActual speedDifference
20 mph20.6 mph+0.6 mph
30 mph30.9 mph+0.9 mph
40 mph41.2 mph+1.2 mph
50 mph51.5 mph+1.5 mph
60 mph61.8 mph+1.8 mph
65 mph67.0 mph+2.0 mph
70 mph72.1 mph+2.1 mph
75 mph77.3 mph+2.3 mph
80 mph82.4 mph+2.4 mph

Each size on its own

Questions

Which is bigger, 195/75R14 or 195/80R14?
195/80R14 is taller by 0.77 inches (26.28" vs 25.52"). 195/75R14 is the same width.
Can I replace 195/75R14 with 195/80R14?
It is not recommended without checking carefully. The diameter difference is +3.0%, 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 195/80R14 change my speedometer?
When your speedometer reads 60 mph with 195/80R14 fitted (calibrated for 195/75R14), your real speed is 61.8 mph. Your odometer will under-count miles by about 3.0%.
Will 195/80R14 lift my vehicle?
Ride height changes by half the diameter difference: +0.38 inches of ground clearance at the axle.

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