Tire Size Box

195/75R13 vs 195/80R13

195/80R13 compared with 195/75R13

+3.1% diameter, 0.0" width

195/80R13 is 25.28" tall vs 24.52". More than the 3% rule of thumb, so check carefully before switching.

24.5"13" rim5.8"7.7" wide
195/75R13 (solid) compared with 195/80R13 (dashed outline), drawn to scale

With 195/80R13 tires, when your speedometer says 60 mph you are really going

61.9 mph

195/80R13 is +0.77 inches (+3.1%) in overall diameter. That is more than the 3% most shops and makers recommend.

195/75R13195/80R13Difference%
Overall diameter24.52"25.28"+0.77"+3.1%
Section width7.68"7.68"0.00"0.0%
Sidewall height5.76"6.14"+0.38"+6.7%
Circumference77.02"79.43"+2.41"+3.1%
Revolutions per mile822.7797.7−25.0−3.0%

Speedometer difference

If your vehicle came with 195/75R13 and you fit 195/80R13, 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 mph41.3 mph+1.3 mph
50 mph51.6 mph+1.6 mph
60 mph61.9 mph+1.9 mph
65 mph67.0 mph+2.0 mph
70 mph72.2 mph+2.2 mph
75 mph77.3 mph+2.3 mph
80 mph82.5 mph+2.5 mph

Each size on its own

Questions

Which is bigger, 195/75R13 or 195/80R13?
195/80R13 is taller by 0.77 inches (25.28" vs 24.52"). 195/75R13 is the same width.
Can I replace 195/75R13 with 195/80R13?
It is not recommended without checking carefully. The diameter difference is +3.1%, 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 195/80R13 change my speedometer?
When your speedometer reads 60 mph with 195/80R13 fitted (calibrated for 195/75R13), your real speed is 61.9 mph. Your odometer will under-count miles by about 3.1%.
Will 195/80R13 lift my vehicle?
Ride height changes by half the diameter difference: +0.38 inches of ground clearance at the axle.

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