TireSizesFinder

215/50R17 vs 265/30R19

265/30R19 is 0.20 in (5.2 mm) shorter than 215/50R17, a −0.80% diameter difference. With the speedometer set for 215/50R17, an indicated 60 mph is 59.5 mph on 265/30R19.

Is this a safe swap?

Diameter difference −0.80%: under 1%

By overall diameter alone, 265/30R19 is a near match for 215/50R17; 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: 215/50R17 (25.46 in) vs 265/30R19 (25.26 in)215/50R1725.46 in × 8.46 in265/30R1925.26 in × 10.43 in
Side profile and tread width, drawn to the same scale.
215/50R17 vs 265/30R19 differences
Measurement215/50R17265/30R19Difference% diff
Overall diameter25.46 in (646.8 mm)25.26 in (641.6 mm)−0.20 in (−5.2 mm)−0.80%
Sidewall height4.23 in (107.5 mm)3.13 in (79.5 mm)−1.10 in (−28.0 mm)−26.05%
Section width8.46 in (215.0 mm)10.43 in (265.0 mm)+1.97 in (+50.0 mm)+23.26%
Circumference80.00 in (2,032.0 mm)79.36 in (2,015.6 mm)−0.64 in (−16.3 mm)−0.80%
Revolutions per mile792798+6+0.81%
True speed with the speedometer calibrated for 215/50R17
IndicatedActual on 215/50R17Actual on 265/30R19Difference
30 mph30.0 mph29.8 mph−0.2 mph
60 mph60.0 mph59.5 mph−0.5 mph
75 mph75.0 mph74.4 mph−0.6 mph

Ride-height change: 265/30R19 lowers the vehicle by 0.10 in (2.6 mm) at the axle (half the −5.2 mm diameter difference).

265/30R19 is 0.20 in shorter than 215/50R17 and 50 mm wider, a 0.80% difference in overall diameter.

With the speedometer calibrated for 215/50R17, an indicated 60 mph is actually 59.5 mph on 265/30R19, and revolutions per mile change from 792 to 798.

265/30R19 mounts on a 19-inch wheel, a plus-2 fitment from the 17-inch wheel of 215/50R17.

Size pages

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