245/35R22 vs 295/30R22

295/30R22 is 0.22 in (5.5 mm) taller than 245/35R22, a +0.75% diameter difference. With the speedometer set for 245/35R22, an indicated 60 mph is 60.5 mph on 295/30R22.

Is this a safe swap?

Diameter difference +0.75%: under 1%

By overall diameter alone, 295/30R22 is a near match for 245/35R22; 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.

245/35R22 vs 295/30R22 differences
Measurement	245/35R22	295/30R22	Difference	% diff
Overall diameter	28.75 in (730.3 mm)	28.97 in (735.8 mm)	+0.22 in (+5.5 mm)	+0.75%
Sidewall height	3.38 in (85.8 mm)	3.48 in (88.5 mm)	+0.11 in (+2.8 mm)	+3.21%
Section width	9.65 in (245.0 mm)	11.61 in (295.0 mm)	+1.97 in (+50.0 mm)	+20.41%
Circumference	90.33 in (2,294.3 mm)	91.01 in (2,311.6 mm)	+0.68 in (+17.3 mm)	+0.75%
Revolutions per mile	701	696	−5	−0.75%

True speed with the speedometer calibrated for 245/35R22
Indicated	Actual on 245/35R22	Actual on 295/30R22	Difference
30 mph	30.0 mph	30.2 mph	+0.2 mph
60 mph	60.0 mph	60.5 mph	+0.5 mph
75 mph	75.0 mph	75.6 mph	+0.6 mph

Ride-height change: 295/30R22 raises the vehicle by 0.11 in (2.8 mm) at the axle (half the +5.5 mm diameter difference).

295/30R22 is 0.22 in taller than 245/35R22 and 50 mm wider, a 0.75% difference in overall diameter.

With the speedometer calibrated for 245/35R22, an indicated 60 mph is actually 60.5 mph on 295/30R22, and revolutions per mile change from 701 to 696.

Both sizes mount on 22-inch wheels.

Size pages

Other comparisons with 245/35R22

Other comparisons with 295/30R22

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