Tire Size Box

295/55R19 vs 295/65R19

295/65R19 compared with 295/55R19

+7.3% diameter, 0.0" width

295/65R19 is 34.10" tall vs 31.78". More than the 3% rule of thumb, so check carefully before switching.

31.8"19" rim6.4"11.6" wide
295/55R19 (solid) compared with 295/65R19 (dashed outline), drawn to scale

With 295/65R19 tires, when your speedometer says 60 mph you are really going

64.4 mph

295/65R19 is +2.32 inches (+7.3%) in overall diameter. That is more than the 3% most shops and makers recommend.

295/55R19295/65R19Difference%
Overall diameter31.78"34.10"+2.32"+7.3%
Section width11.61"11.61"0.00"0.0%
Sidewall height6.39"7.55"+1.16"+18.2%
Circumference99.83"107.12"+7.30"+7.3%
Revolutions per mile634.7591.5−43.2−6.8%

Speedometer difference

If your vehicle came with 295/55R19 and you fit 295/65R19, here is your real speed for each speedometer reading:

Speedometer showsActual speedDifference
20 mph21.5 mph+1.5 mph
30 mph32.2 mph+2.2 mph
40 mph42.9 mph+2.9 mph
50 mph53.7 mph+3.7 mph
60 mph64.4 mph+4.4 mph
65 mph69.8 mph+4.8 mph
70 mph75.1 mph+5.1 mph
75 mph80.5 mph+5.5 mph
80 mph85.8 mph+5.8 mph

Each size on its own

Questions

Which is bigger, 295/55R19 or 295/65R19?
295/65R19 is taller by 2.32 inches (34.10" vs 31.78"). 295/55R19 is the same width.
Can I replace 295/55R19 with 295/65R19?
It is not recommended without checking carefully. The diameter difference is +7.3%, 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 295/65R19 change my speedometer?
When your speedometer reads 60 mph with 295/65R19 fitted (calibrated for 295/55R19), your real speed is 64.4 mph. Your odometer will under-count miles by about 7.3%.
Will 295/65R19 lift my vehicle?
Ride height changes by half the diameter difference: +1.16 inches of ground clearance at the axle.

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