Tire Size Box

335/40R22 vs 335/50R22

335/50R22 compared with 335/40R22

+8.1% diameter, 0.0" width

335/50R22 is 35.19" tall vs 32.55". More than the 3% rule of thumb, so check carefully before switching.

32.6"22" rim5.3"13.2" wide
335/40R22 (solid) compared with 335/50R22 (dashed outline), drawn to scale

With 335/50R22 tires, when your speedometer says 60 mph you are really going

64.9 mph

335/50R22 is +2.64 inches (+8.1%) in overall diameter. That is more than the 3% most shops and makers recommend.

335/40R22335/50R22Difference%
Overall diameter32.55"35.19"+2.64"+8.1%
Section width13.19"13.19"0.00"0.0%
Sidewall height5.28"6.59"+1.32"+25.0%
Circumference102.26"110.55"+8.29"+8.1%
Revolutions per mile619.6573.1−46.4−7.5%

Speedometer difference

If your vehicle came with 335/40R22 and you fit 335/50R22, 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 mph54.1 mph+4.1 mph
60 mph64.9 mph+4.9 mph
65 mph70.3 mph+5.3 mph
70 mph75.7 mph+5.7 mph
75 mph81.1 mph+6.1 mph
80 mph86.5 mph+6.5 mph

Each size on its own

Questions

Which is bigger, 335/40R22 or 335/50R22?
335/50R22 is taller by 2.64 inches (35.19" vs 32.55"). 335/40R22 is the same width.
Can I replace 335/40R22 with 335/50R22?
It is not recommended without checking carefully. The diameter difference is +8.1%, 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 335/50R22 change my speedometer?
When your speedometer reads 60 mph with 335/50R22 fitted (calibrated for 335/40R22), your real speed is 64.9 mph. Your odometer will under-count miles by about 8.1%.
Will 335/50R22 lift my vehicle?
Ride height changes by half the diameter difference: +1.32 inches of ground clearance at the axle.

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