TireSizesFinder

325/50R22 vs 35x12.50R22

35x12.50R22 is 0.20 in (5.2 mm) taller than 325/50R22, a +0.59% diameter difference. With the speedometer set for 325/50R22, an indicated 60 mph is 60.4 mph on 35x12.50R22.

Is this a safe swap?

Diameter difference +0.59%: under 1%

By overall diameter alone, 35x12.50R22 is a near match for 325/50R22; the speedometer changes by less than 1%. This check uses diameter only. It does not assess load index, speed rating, wheel width or clearance.

To-scale drawing: 325/50R22 (34.80 in) vs 35x12.50R22 (35.00 in)325/50R2234.80 in × 12.80 in35x12.50R2235.00 in × 12.50 in
Side profile and tread width, drawn to the same scale.
325/50R22 vs 35x12.50R22 differences
Measurement325/50R2235x12.50R22Difference% diff
Overall diameter34.80 in (883.8 mm)35.00 in (889.0 mm)+0.20 in (+5.2 mm)+0.59%
Sidewall height6.40 in (162.5 mm)6.50 in (165.1 mm)+0.10 in (+2.6 mm)+1.60%
Section width12.80 in (325.0 mm)12.50 in (317.5 mm)−0.30 in (−7.5 mm)−2.31%
Circumference109.31 in (2,776.5 mm)109.96 in (2,792.9 mm)+0.64 in (+16.3 mm)+0.59%
Revolutions per mile580576−3−0.58%
True speed with the speedometer calibrated for 325/50R22
IndicatedActual on 325/50R22Actual on 35x12.50R22Difference
30 mph30.0 mph30.2 mph+0.2 mph
60 mph60.0 mph60.4 mph+0.4 mph
75 mph75.0 mph75.4 mph+0.4 mph

Ride-height change: 35x12.50R22 raises the vehicle by 0.10 in (2.6 mm) at the axle (half the +5.2 mm diameter difference).

35x12.50R22 is 0.20 in taller than 325/50R22 and 8 mm narrower, a 0.59% difference in overall diameter.

With the speedometer calibrated for 325/50R22, an indicated 60 mph is actually 60.4 mph on 35x12.50R22, and revolutions per mile change from 580 to 576.

Both sizes mount on 22-inch wheels.

Size pages

Other comparisons with 325/50R22

Other comparisons with 35x12.50R22

Source: Calculated from standard tire geometry formulas. Verified . How these numbers are calculated.