355/30R19 vs 335/35R19

335/35R19 compared with 355/30R19

+3.1% diameter, −0.8" width

335/35R19 is 28.23" tall vs 27.39". More than the 3% rule of thumb, so check carefully before switching.

27.4"19" rim4.2"14.0" wide
355/30R19 (solid) compared with 335/35R19 (dashed outline), drawn to scale

With 335/35R19 tires, when your speedometer says 60 mph you are really going

61.9 mph

335/35R19 is +0.85 inches (+3.1%) in overall diameter. That is more than the 3% most shops and makers recommend.

355/30R19335/35R19Difference%
Overall diameter27.39"28.23"+0.85"+3.1%
Section width13.98"13.19"−0.79"−5.6%
Sidewall height4.19"4.62"+0.42"+10.1%
Circumference86.04"88.69"+2.66"+3.1%
Revolutions per mile736.4714.4−22.1−3.0%

Speedometer difference

If your vehicle came with 355/30R19 and you fit 335/35R19, 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 mph61.9 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, 355/30R19 or 335/35R19?
335/35R19 is taller by 0.85 inches (28.23" vs 27.39"). 355/30R19 is wider by 0.79 inches.
Can I replace 355/30R19 with 335/35R19?
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 335/35R19 change my speedometer?
When your speedometer reads 60 mph with 335/35R19 fitted (calibrated for 355/30R19), your real speed is 61.9 mph. Your odometer will under-count miles by about 3.1%.
Will 335/35R19 lift my vehicle?
Ride height changes by half the diameter difference: +0.42 inches of ground clearance at the axle.

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