Tire Size Box

325/50R19 vs 325/60R19

325/60R19 compared with 325/50R19

+8.0% diameter, 0.0" width

325/60R19 is 34.35" tall vs 31.80". More than the 3% rule of thumb, so check carefully before switching.

31.8"19" rim6.4"12.8" wide
325/50R19 (solid) compared with 325/60R19 (dashed outline), drawn to scale

With 325/60R19 tires, when your speedometer says 60 mph you are really going

64.8 mph

325/60R19 is +2.56 inches (+8.0%) in overall diameter. That is more than the 3% most shops and makers recommend.

325/50R19325/60R19Difference%
Overall diameter31.80"34.35"+2.56"+8.0%
Section width12.80"12.80"0.00"0.0%
Sidewall height6.40"7.68"+1.28"+20.0%
Circumference99.89"107.93"+8.04"+8.0%
Revolutions per mile634.3587.1−47.2−7.4%

Speedometer difference

If your vehicle came with 325/50R19 and you fit 325/60R19, here is your real speed for each speedometer reading:

Speedometer showsActual speedDifference
20 mph21.6 mph+1.6 mph
30 mph32.4 mph+2.4 mph
40 mph43.2 mph+3.2 mph
50 mph54.0 mph+4.0 mph
60 mph64.8 mph+4.8 mph
65 mph70.2 mph+5.2 mph
70 mph75.6 mph+5.6 mph
75 mph81.0 mph+6.0 mph
80 mph86.4 mph+6.4 mph

Each size on its own

Questions

Which is bigger, 325/50R19 or 325/60R19?
325/60R19 is taller by 2.56 inches (34.35" vs 31.80"). 325/50R19 is the same width.
Can I replace 325/50R19 with 325/60R19?
It is not recommended without checking carefully. The diameter difference is +8.0%, 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 325/60R19 change my speedometer?
When your speedometer reads 60 mph with 325/60R19 fitted (calibrated for 325/50R19), your real speed is 64.8 mph. Your odometer will under-count miles by about 8.0%.
Will 325/60R19 lift my vehicle?
Ride height changes by half the diameter difference: +1.28 inches of ground clearance at the axle.

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