TireSizesFinder

225/75R17 vs 265/55R19

265/55R19 is 0.19 in (4.8 mm) taller than 225/75R17, a +0.62% diameter difference. With the speedometer set for 225/75R17, an indicated 60 mph is 60.4 mph on 265/55R19.

Is this a safe swap?

Diameter difference +0.62%: under 1%

By overall diameter alone, 265/55R19 is a near match for 225/75R17; 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: 225/75R17 (30.29 in) vs 265/55R19 (30.48 in)225/75R1730.29 in × 8.86 in265/55R1930.48 in × 10.43 in
Side profile and tread width, drawn to the same scale.
225/75R17 vs 265/55R19 differences
Measurement225/75R17265/55R19Difference% diff
Overall diameter30.29 in (769.3 mm)30.48 in (774.1 mm)+0.19 in (+4.8 mm)+0.62%
Sidewall height6.64 in (168.8 mm)5.74 in (145.8 mm)−0.91 in (−23.0 mm)−13.63%
Section width8.86 in (225.0 mm)10.43 in (265.0 mm)+1.57 in (+40.0 mm)+17.78%
Circumference95.15 in (2,416.8 mm)95.74 in (2,431.9 mm)+0.59 in (+15.1 mm)+0.62%
Revolutions per mile666662−4−0.62%
True speed with the speedometer calibrated for 225/75R17
IndicatedActual on 225/75R17Actual on 265/55R19Difference
30 mph30.0 mph30.2 mph+0.2 mph
60 mph60.0 mph60.4 mph+0.4 mph
75 mph75.0 mph75.5 mph+0.5 mph

Ride-height change: 265/55R19 raises the vehicle by 0.09 in (2.4 mm) at the axle (half the +4.8 mm diameter difference).

265/55R19 is 0.19 in taller than 225/75R17 and 40 mm wider, a 0.62% difference in overall diameter.

With the speedometer calibrated for 225/75R17, an indicated 60 mph is actually 60.4 mph on 265/55R19, and revolutions per mile change from 666 to 662.

265/55R19 mounts on a 19-inch wheel, a plus-2 fitment from the 17-inch wheel of 225/75R17.

Size pages

Other comparisons with 225/75R17

Other comparisons with 265/55R19

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