TireSizesFinder

265/55R20 vs 295/40R22

295/40R22 is 0.19 in (4.7 mm) shorter than 265/55R20, a −0.59% diameter difference. With the speedometer set for 265/55R20, an indicated 60 mph is 59.6 mph on 295/40R22.

Is this a safe swap?

Diameter difference −0.59%: under 1%

By overall diameter alone, 295/40R22 is a near match for 265/55R20; 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: 265/55R20 (31.48 in) vs 295/40R22 (31.29 in)265/55R2031.48 in × 10.43 in295/40R2231.29 in × 11.61 in
Side profile and tread width, drawn to the same scale.
265/55R20 vs 295/40R22 differences
Measurement265/55R20295/40R22Difference% diff
Overall diameter31.48 in (799.5 mm)31.29 in (794.8 mm)−0.19 in (−4.7 mm)−0.59%
Sidewall height5.74 in (145.8 mm)4.65 in (118.0 mm)−1.09 in (−27.7 mm)−19.04%
Section width10.43 in (265.0 mm)11.61 in (295.0 mm)+1.18 in (+30.0 mm)+11.32%
Circumference98.89 in (2,511.7 mm)98.30 in (2,496.9 mm)−0.58 in (−14.8 mm)−0.59%
Revolutions per mile641645+4+0.59%
True speed with the speedometer calibrated for 265/55R20
IndicatedActual on 265/55R20Actual on 295/40R22Difference
30 mph30.0 mph29.8 mph−0.2 mph
60 mph60.0 mph59.6 mph−0.4 mph
75 mph75.0 mph74.6 mph−0.4 mph

Ride-height change: 295/40R22 lowers the vehicle by 0.09 in (2.4 mm) at the axle (half the −4.7 mm diameter difference).

295/40R22 is 0.19 in shorter than 265/55R20 and 30 mm wider, a 0.59% difference in overall diameter.

With the speedometer calibrated for 265/55R20, an indicated 60 mph is actually 59.6 mph on 295/40R22, and revolutions per mile change from 641 to 645.

295/40R22 mounts on a 22-inch wheel, a plus-2 fitment from the 20-inch wheel of 265/55R20.

Size pages

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