TireSizesFinder

295/30R21 vs 265/30R22

265/30R22 is 0.29 in (7.4 mm) taller than 295/30R21, a +1.04% diameter difference. With the speedometer set for 295/30R21, an indicated 60 mph is 60.6 mph on 265/30R22.

Is this a safe swap?

Diameter difference +1.04%: within the ±3% guideline

By overall diameter alone, 265/30R22 falls inside the ±3% range commonly used as a guideline when replacing 295/30R21. This check uses diameter only. It does not assess load index, speed rating, wheel width or clearance.

To-scale drawing: 295/30R21 (27.97 in) vs 265/30R22 (28.26 in)295/30R2127.97 in × 11.61 in265/30R2228.26 in × 10.43 in
Side profile and tread width, drawn to the same scale.
295/30R21 vs 265/30R22 differences
Measurement295/30R21265/30R22Difference% diff
Overall diameter27.97 in (710.4 mm)28.26 in (717.8 mm)+0.29 in (+7.4 mm)+1.04%
Sidewall height3.48 in (88.5 mm)3.13 in (79.5 mm)−0.35 in (−9.0 mm)−10.17%
Section width11.61 in (295.0 mm)10.43 in (265.0 mm)−1.18 in (−30.0 mm)−10.17%
Circumference87.87 in (2,231.8 mm)88.78 in (2,255.0 mm)+0.92 in (+23.2 mm)+1.04%
Revolutions per mile721714−7−1.03%
True speed with the speedometer calibrated for 295/30R21
IndicatedActual on 295/30R21Actual on 265/30R22Difference
30 mph30.0 mph30.3 mph+0.3 mph
60 mph60.0 mph60.6 mph+0.6 mph
75 mph75.0 mph75.8 mph+0.8 mph

Ride-height change: 265/30R22 raises the vehicle by 0.15 in (3.7 mm) at the axle (half the +7.4 mm diameter difference).

265/30R22 is 0.29 in taller than 295/30R21 and 30 mm narrower, a 1.04% difference in overall diameter.

With the speedometer calibrated for 295/30R21, an indicated 60 mph is actually 60.6 mph on 265/30R22, and revolutions per mile change from 721 to 714.

265/30R22 mounts on a 22-inch wheel, a plus-1 fitment from the 21-inch wheel of 295/30R21.

Size pages

Other comparisons with 295/30R21

Other comparisons with 265/30R22

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