CarSpecsHQ

265/40R22 vs 325/35R22

325/35R22 is a safe swap for 265/40R22 by the usual ±3% rule: the diameter differs by +2.01%.

22" rim
265/40R22 30.35" · 325/35R22 30.96" · drawn to scale

Side by side

265/40R22325/35R22Difference
Overall diameter30.35"30.96"+0.61" (+2.01%)
Section width265 mm325 mm+60 mm
Sidewall4.17"4.48"+0.31"
Rim22"22"same
Circumference95.3"97.3"+1.9"
Revs per mile665651-13
Ride height——+0.31"
Speedometer reads 60 mph60.061.2+1.2 mph

Speedometer and odometer

020406080100120 reads 60 · actual 61.2 mph

With 325/35R22 on a car calibrated for 265/40R22, the speedometer reads 58.8 mph when you're really doing 60, and the odometer under-counts by 2.0%.

Speedo showsActual speed
30 mph30.6 mph
45 mph45.9 mph
60 mph61.2 mph
70 mph71.4 mph
80 mph81.6 mph

Other sizes close to 265/40R22

Questions

Can I replace 265/40R22 with 325/35R22?

325/35R22 is a safe swap for 265/40R22 by the usual ±3% rule: the diameter differs by +2.01%.

What's the difference between 265/40R22 and 325/35R22?

325/35R22 is 0.61" taller and 60 mm wider; the sidewall is +0.31". At an indicated 60 mph you'd actually be doing 61.2 mph.

Will 325/35R22 fit on 265/40R22 wheels?

Both use a 22" rim, so the wheel diameter matches; check the wheel's width range for a 325 mm tire and the fender clearance.