Tire Size Box

195/55R14 vs 195/65R14

195/65R14 compared with 195/55R14

+6.8% diameter, 0.0" width

195/65R14 is 23.98" tall vs 22.44". More than the 3% rule of thumb, so check carefully before switching.

22.4"14" rim4.2"7.7" wide
195/55R14 (solid) compared with 195/65R14 (dashed outline), drawn to scale

With 195/65R14 tires, when your speedometer says 60 mph you are really going

64.1 mph

195/65R14 is +1.54 inches (+6.8%) in overall diameter. That is more than the 3% most shops and makers recommend.

195/55R14195/65R14Difference%
Overall diameter22.44"23.98"+1.54"+6.8%
Section width7.68"7.68"0.00"0.0%
Sidewall height4.22"4.99"+0.77"+18.2%
Circumference70.51"75.34"+4.82"+6.8%
Revolutions per mile898.6841.0−57.5−6.4%

Speedometer difference

If your vehicle came with 195/55R14 and you fit 195/65R14, here is your real speed for each speedometer reading:

Speedometer showsActual speedDifference
20 mph21.4 mph+1.4 mph
30 mph32.1 mph+2.1 mph
40 mph42.7 mph+2.7 mph
50 mph53.4 mph+3.4 mph
60 mph64.1 mph+4.1 mph
65 mph69.4 mph+4.4 mph
70 mph74.8 mph+4.8 mph
75 mph80.1 mph+5.1 mph
80 mph85.5 mph+5.5 mph

Each size on its own

Questions

Which is bigger, 195/55R14 or 195/65R14?
195/65R14 is taller by 1.54 inches (23.98" vs 22.44"). 195/55R14 is the same width.
Can I replace 195/55R14 with 195/65R14?
It is not recommended without checking carefully. The diameter difference is +6.8%, 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 195/65R14 change my speedometer?
When your speedometer reads 60 mph with 195/65R14 fitted (calibrated for 195/55R14), your real speed is 64.1 mph. Your odometer will under-count miles by about 6.8%.
Will 195/65R14 lift my vehicle?
Ride height changes by half the diameter difference: +0.77 inches of ground clearance at the axle.

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