CarSpecsHQ

295/30R22 vs 285/35R22

285/35R22 is outside the ±3% rule as a replacement for 295/30R22: the diameter differs by +3.06%, so the speedometer, odometer and ABS calibration will be off and clearance needs checking.

22" rim
295/30R22 28.97" · 285/35R22 29.85" · drawn to scale

Side by side

295/30R22285/35R22Difference
Overall diameter28.97"29.85"+0.89" (+3.06%)
Section width295 mm285 mm-10 mm
Sidewall3.48"3.93"+0.44"
Rim22"22"same
Circumference91.0"93.8"+2.8"
Revs per mile696676-21
Ride height——+0.44"
Speedometer reads 60 mph60.061.8+1.8 mph

Speedometer and odometer

020406080100120 reads 60 · actual 61.8 mph

With 285/35R22 on a car calibrated for 295/30R22, the speedometer reads 58.2 mph when you're really doing 60, and the odometer under-counts by 3.1%.

Speedo showsActual speed
30 mph30.9 mph
45 mph46.4 mph
60 mph61.8 mph
70 mph72.1 mph
80 mph82.4 mph

Other sizes close to 295/30R22

Questions

Can I replace 295/30R22 with 285/35R22?

285/35R22 is outside the ±3% rule as a replacement for 295/30R22: the diameter differs by +3.06%, so the speedometer, odometer and ABS calibration will be off and clearance needs checking.

What's the difference between 295/30R22 and 285/35R22?

285/35R22 is 0.89" taller and 10 mm narrower; the sidewall is +0.44". At an indicated 60 mph you'd actually be doing 61.8 mph.

Will 285/35R22 fit on 295/30R22 wheels?

Both use a 22" rim, so the wheel diameter matches; check the wheel's width range for a 285 mm tire and the fender clearance.