TireSizesFinder

245/60R17 vs 265/45R19

265/45R19 is 0.19 in (4.7 mm) shorter than 245/60R17, a −0.65% diameter difference. With the speedometer set for 245/60R17, an indicated 60 mph is 59.6 mph on 265/45R19.

Is this a safe swap?

Diameter difference −0.65%: under 1%

By overall diameter alone, 265/45R19 is a near match for 245/60R17; 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: 245/60R17 (28.57 in) vs 265/45R19 (28.39 in)245/60R1728.57 in × 9.65 in265/45R1928.39 in × 10.43 in
Side profile and tread width, drawn to the same scale.
245/60R17 vs 265/45R19 differences
Measurement245/60R17265/45R19Difference% diff
Overall diameter28.57 in (725.8 mm)28.39 in (721.1 mm)−0.19 in (−4.7 mm)−0.65%
Sidewall height5.79 in (147.0 mm)4.69 in (119.3 mm)−1.09 in (−27.7 mm)−18.88%
Section width9.65 in (245.0 mm)10.43 in (265.0 mm)+0.79 in (+20.0 mm)+8.16%
Circumference89.77 in (2,280.2 mm)89.19 in (2,265.4 mm)−0.58 in (−14.8 mm)−0.65%
Revolutions per mile706710+5+0.65%
True speed with the speedometer calibrated for 245/60R17
IndicatedActual on 245/60R17Actual on 265/45R19Difference
30 mph30.0 mph29.8 mph−0.2 mph
60 mph60.0 mph59.6 mph−0.4 mph
75 mph75.0 mph74.5 mph−0.5 mph

Ride-height change: 265/45R19 lowers the vehicle by 0.09 in (2.4 mm) at the axle (half the −4.7 mm diameter difference).

265/45R19 is 0.19 in shorter than 245/60R17 and 20 mm wider, a 0.65% difference in overall diameter.

With the speedometer calibrated for 245/60R17, an indicated 60 mph is actually 59.6 mph on 265/45R19, and revolutions per mile change from 706 to 710.

265/45R19 mounts on a 19-inch wheel, a plus-2 fitment from the 17-inch wheel of 245/60R17.

Size pages

Other comparisons with 245/60R17

Other comparisons with 265/45R19

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