TireSizesFinder

265/65R17 vs 275/65R17

275/65R17 is 0.51 in (13.0 mm) taller than 265/65R17, a +1.67% diameter difference. With the speedometer set for 265/65R17, an indicated 60 mph is 61.0 mph on 275/65R17.

Is this a safe swap?

Diameter difference +1.67%: within the ±3% guideline

By overall diameter alone, 275/65R17 falls inside the ±3% range commonly used as a guideline when replacing 265/65R17. This check uses diameter only. It does not assess load index, speed rating, wheel width or clearance.

To-scale drawing: 265/65R17 (30.56 in) vs 275/65R17 (31.07 in)265/65R1730.56 in × 10.43 in275/65R1731.07 in × 10.83 in
Side profile and tread width, drawn to the same scale.
265/65R17 vs 275/65R17 differences
Measurement265/65R17275/65R17Difference% diff
Overall diameter30.56 in (776.3 mm)31.07 in (789.3 mm)+0.51 in (+13.0 mm)+1.67%
Sidewall height6.78 in (172.3 mm)7.04 in (178.8 mm)+0.26 in (+6.5 mm)+3.77%
Section width10.43 in (265.0 mm)10.83 in (275.0 mm)+0.39 in (+10.0 mm)+3.77%
Circumference96.02 in (2,438.8 mm)97.62 in (2,479.7 mm)+1.61 in (+40.8 mm)+1.67%
Revolutions per mile660649−11−1.65%
True speed with the speedometer calibrated for 265/65R17
IndicatedActual on 265/65R17Actual on 275/65R17Difference
30 mph30.0 mph30.5 mph+0.5 mph
60 mph60.0 mph61.0 mph+1.0 mph
75 mph75.0 mph76.3 mph+1.3 mph

Ride-height change: 275/65R17 raises the vehicle by 0.26 in (6.5 mm) at the axle (half the +13.0 mm diameter difference).

275/65R17 is 0.51 in taller than 265/65R17 and 10 mm wider, a 1.67% difference in overall diameter.

With the speedometer calibrated for 265/65R17, an indicated 60 mph is actually 61.0 mph on 275/65R17, and revolutions per mile change from 660 to 649.

Both sizes mount on 17-inch wheels.

Size pages

Other comparisons with 265/65R17

Other comparisons with 275/65R17

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