295/40R20 vs 265/35R22

265/35R22 is 0.01 in (0.3 mm) taller than 295/40R20, a +0.04% diameter difference. With the speedometer set for 295/40R20, an indicated 60 mph is 60.0 mph on 265/35R22.

Is this a safe swap?

Diameter difference +0.04%: under 1%

By overall diameter alone, 265/35R22 is a near match for 295/40R20; the speedometer changes by less than 1%. This check uses diameter only. It does not assess load index, speed rating, wheel width or clearance.

Side profile and tread width, drawn to the same scale.

295/40R20 vs 265/35R22 differences
Measurement	295/40R20	265/35R22	Difference	% diff
Overall diameter	29.29 in (744.0 mm)	29.30 in (744.3 mm)	+0.01 in (+0.3 mm)	+0.04%
Sidewall height	4.65 in (118.0 mm)	3.65 in (92.8 mm)	−0.99 in (−25.2 mm)	−21.40%
Section width	11.61 in (295.0 mm)	10.43 in (265.0 mm)	−1.18 in (−30.0 mm)	−10.17%
Circumference	92.02 in (2,337.3 mm)	92.06 in (2,338.3 mm)	+0.04 in (+0.9 mm)	+0.04%
Revolutions per mile	689	688	0	−0.04%

True speed with the speedometer calibrated for 295/40R20
Indicated	Actual on 295/40R20	Actual on 265/35R22
30 mph	30.0 mph	30.0 mph
60 mph	60.0 mph	60.0 mph
75 mph	75.0 mph	75.0 mph

Ride-height change: 265/35R22 raises the vehicle by 0.01 in (0.1 mm) at the axle (half the +0.3 mm diameter difference).

265/35R22 is 0.01 in taller than 295/40R20 and 30 mm narrower, a 0.04% difference in overall diameter.

With the speedometer calibrated for 295/40R20, an indicated 60 mph is actually 60.0 mph on 265/35R22, and revolutions per mile change from 689 to 688.

265/35R22 mounts on a 22-inch wheel, a plus-2 fitment from the 20-inch wheel of 295/40R20.

Size pages

Other comparisons with 295/40R20

Other comparisons with 265/35R22

Source: Calculated from standard tire geometry formulas. Verified 2026-09-27. How these numbers are calculated.