TireSizesFinder

265/60R17 vs 245/65R17

245/65R17 is 0.02 in (0.5 mm) taller than 265/60R17, a +0.07% diameter difference. With the speedometer set for 265/60R17, an indicated 60 mph is 60.0 mph on 245/65R17.

Is this a safe swap?

Diameter difference +0.07%: under 1%

By overall diameter alone, 245/65R17 is a near match for 265/60R17; 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: 265/60R17 (29.52 in) vs 245/65R17 (29.54 in)265/60R1729.52 in × 10.43 in245/65R1729.54 in × 9.65 in
Side profile and tread width, drawn to the same scale.
265/60R17 vs 245/65R17 differences
Measurement265/60R17245/65R17Difference% diff
Overall diameter29.52 in (749.8 mm)29.54 in (750.3 mm)+0.02 in (+0.5 mm)+0.07%
Sidewall height6.26 in (159.0 mm)6.27 in (159.3 mm)+0.01 in (+0.3 mm)+0.16%
Section width10.43 in (265.0 mm)9.65 in (245.0 mm)−0.79 in (−20.0 mm)−7.55%
Circumference92.74 in (2,355.6 mm)92.80 in (2,357.1 mm)+0.06 in (+1.6 mm)+0.07%
Revolutions per mile6836830−0.07%
True speed with the speedometer calibrated for 265/60R17
IndicatedActual on 265/60R17Actual on 245/65R17Difference
30 mph30.0 mph30.0 mph0.0 mph
60 mph60.0 mph60.0 mph0.0 mph
75 mph75.0 mph75.1 mph+0.1 mph

Ride-height change: 245/65R17 raises the vehicle by 0.01 in (0.3 mm) at the axle (half the +0.5 mm diameter difference).

245/65R17 is 0.02 in taller than 265/60R17 and 20 mm narrower, a 0.07% difference in overall diameter.

With the speedometer calibrated for 265/60R17, an indicated 60 mph is actually 60.0 mph on 245/65R17, and revolutions per mile change from 683 to 683.

Both sizes mount on 17-inch wheels.

Size pages

Other comparisons with 265/60R17

Other comparisons with 245/65R17

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