285/40R19 vs 295/40R19

295/40R19 is 0.31 in (8.0 mm) taller than 285/40R19, a +1.13% diameter difference. With the speedometer set for 285/40R19, an indicated 60 mph is 60.7 mph on 295/40R19.

Is this a safe swap?

Diameter difference +1.13%: within the ±3% guideline

By overall diameter alone, 295/40R19 falls inside the ±3% range commonly used as a guideline when replacing 285/40R19. 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.

285/40R19 vs 295/40R19 differences
Measurement	285/40R19	295/40R19	Difference	% diff
Overall diameter	27.98 in (710.6 mm)	28.29 in (718.6 mm)	+0.31 in (+8.0 mm)	+1.13%
Sidewall height	4.49 in (114.0 mm)	4.65 in (118.0 mm)	+0.16 in (+4.0 mm)	+3.51%
Section width	11.22 in (285.0 mm)	11.61 in (295.0 mm)	+0.39 in (+10.0 mm)	+3.51%
Circumference	87.89 in (2,232.4 mm)	88.88 in (2,257.5 mm)	+0.99 in (+25.1 mm)	+1.13%
Revolutions per mile	721	713	−8	−1.11%

True speed with the speedometer calibrated for 285/40R19
Indicated	Actual on 285/40R19	Actual on 295/40R19	Difference
30 mph	30.0 mph	30.3 mph	+0.3 mph
60 mph	60.0 mph	60.7 mph	+0.7 mph
75 mph	75.0 mph	75.8 mph	+0.8 mph

Ride-height change: 295/40R19 raises the vehicle by 0.16 in (4.0 mm) at the axle (half the +8.0 mm diameter difference).

295/40R19 is 0.31 in taller than 285/40R19 and 10 mm wider, a 1.13% difference in overall diameter.

With the speedometer calibrated for 285/40R19, an indicated 60 mph is actually 60.7 mph on 295/40R19, and revolutions per mile change from 721 to 713.

Both sizes mount on 19-inch wheels.

Size pages

Other comparisons with 285/40R19

Other comparisons with 295/40R19

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