Tire Size Box

355/25R22 vs 335/30R22

335/30R22 compared with 355/25R22

+3.2% diameter, −0.8" width

335/30R22 is 29.91" tall vs 28.99". More than the 3% rule of thumb, so check carefully before switching.

29.0"22" rim3.5"14.0" wide
355/25R22 (solid) compared with 335/30R22 (dashed outline), drawn to scale

With 335/30R22 tires, when your speedometer says 60 mph you are really going

61.9 mph

335/30R22 is +0.93 inches (+3.2%) in overall diameter. That is more than the 3% most shops and makers recommend.

355/25R22335/30R22Difference%
Overall diameter28.99"29.91"+0.93"+3.2%
Section width13.98"13.19"−0.79"−5.6%
Sidewall height3.49"3.96"+0.46"+13.2%
Circumference91.07"93.98"+2.91"+3.2%
Revolutions per mile695.7674.2−21.5−3.1%

Speedometer difference

If your vehicle came with 355/25R22 and you fit 335/30R22, here is your real speed for each speedometer reading:

Speedometer showsActual speedDifference
20 mph20.6 mph+0.6 mph
30 mph31.0 mph+1.0 mph
40 mph41.3 mph+1.3 mph
50 mph51.6 mph+1.6 mph
60 mph61.9 mph+1.9 mph
65 mph67.1 mph+2.1 mph
70 mph72.2 mph+2.2 mph
75 mph77.4 mph+2.4 mph
80 mph82.6 mph+2.6 mph

Each size on its own

Questions

Which is bigger, 355/25R22 or 335/30R22?
335/30R22 is taller by 0.93 inches (29.91" vs 28.99"). 355/25R22 is wider by 0.79 inches.
Can I replace 355/25R22 with 335/30R22?
It is not recommended without checking carefully. The diameter difference is +3.2%, 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 335/30R22 change my speedometer?
When your speedometer reads 60 mph with 335/30R22 fitted (calibrated for 355/25R22), your real speed is 61.9 mph. Your odometer will under-count miles by about 3.2%.
Will 335/30R22 lift my vehicle?
Ride height changes by half the diameter difference: +0.46 inches of ground clearance at the axle.

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