Tire Size Box

295/35R22 vs 295/45R22

295/45R22 compared with 295/35R22

+7.7% diameter, 0.0" width

295/45R22 is 32.45" tall vs 30.13". More than the 3% rule of thumb, so check carefully before switching.

30.1"22" rim4.1"11.6" wide
295/35R22 (solid) compared with 295/45R22 (dashed outline), drawn to scale

With 295/45R22 tires, when your speedometer says 60 mph you are really going

64.6 mph

295/45R22 is +2.32 inches (+7.7%) in overall diameter. That is more than the 3% most shops and makers recommend.

295/35R22295/45R22Difference%
Overall diameter30.13"32.45"+2.32"+7.7%
Section width11.61"11.61"0.00"0.0%
Sidewall height4.06"5.23"+1.16"+28.6%
Circumference94.66"101.95"+7.30"+7.7%
Revolutions per mile669.4621.5−47.9−7.2%

Speedometer difference

If your vehicle came with 295/35R22 and you fit 295/45R22, here is your real speed for each speedometer reading:

Speedometer showsActual speedDifference
20 mph21.5 mph+1.5 mph
30 mph32.3 mph+2.3 mph
40 mph43.1 mph+3.1 mph
50 mph53.9 mph+3.9 mph
60 mph64.6 mph+4.6 mph
65 mph70.0 mph+5.0 mph
70 mph75.4 mph+5.4 mph
75 mph80.8 mph+5.8 mph
80 mph86.2 mph+6.2 mph

Each size on its own

Questions

Which is bigger, 295/35R22 or 295/45R22?
295/45R22 is taller by 2.32 inches (32.45" vs 30.13"). 295/35R22 is the same width.
Can I replace 295/35R22 with 295/45R22?
It is not recommended without checking carefully. The diameter difference is +7.7%, 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 295/45R22 change my speedometer?
When your speedometer reads 60 mph with 295/45R22 fitted (calibrated for 295/35R22), your real speed is 64.6 mph. Your odometer will under-count miles by about 7.7%.
Will 295/45R22 lift my vehicle?
Ride height changes by half the diameter difference: +1.16 inches of ground clearance at the axle.

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