Tire Size Box

345/30R22 vs 335/35R22

335/35R22 compared with 345/30R22

+3.6% diameter, −0.4" width

335/35R22 is 31.23" tall vs 30.15". More than the 3% rule of thumb, so check carefully before switching.

30.1"22" rim4.1"13.6" wide
345/30R22 (solid) compared with 335/35R22 (dashed outline), drawn to scale

With 335/35R22 tires, when your speedometer says 60 mph you are really going

62.2 mph

335/35R22 is +1.08 inches (+3.6%) in overall diameter. That is more than the 3% most shops and makers recommend.

345/30R22335/35R22Difference%
Overall diameter30.15"31.23"+1.08"+3.6%
Section width13.58"13.19"−0.39"−2.9%
Sidewall height4.07"4.62"+0.54"+13.3%
Circumference94.72"98.12"+3.40"+3.6%
Revolutions per mile668.9645.7−23.2−3.5%

Speedometer difference

If your vehicle came with 345/30R22 and you fit 335/35R22, here is your real speed for each speedometer reading:

Speedometer showsActual speedDifference
20 mph20.7 mph+0.7 mph
30 mph31.1 mph+1.1 mph
40 mph41.4 mph+1.4 mph
50 mph51.8 mph+1.8 mph
60 mph62.2 mph+2.2 mph
65 mph67.3 mph+2.3 mph
70 mph72.5 mph+2.5 mph
75 mph77.7 mph+2.7 mph
80 mph82.9 mph+2.9 mph

Each size on its own

Questions

Which is bigger, 345/30R22 or 335/35R22?
335/35R22 is taller by 1.08 inches (31.23" vs 30.15"). 345/30R22 is wider by 0.39 inches.
Can I replace 345/30R22 with 335/35R22?
It is not recommended without checking carefully. The diameter difference is +3.6%, 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 335/35R22 change my speedometer?
When your speedometer reads 60 mph with 335/35R22 fitted (calibrated for 345/30R22), your real speed is 62.2 mph. Your odometer will under-count miles by about 3.6%.
Will 335/35R22 lift my vehicle?
Ride height changes by half the diameter difference: +0.54 inches of ground clearance at the axle.

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