235/70R17 vs 235/60R19

235/60R19 is 0.15 in (3.8 mm) taller than 235/70R17, a +0.50% diameter difference. With the speedometer set for 235/70R17, an indicated 60 mph is 60.3 mph on 235/60R19.

Is this a safe swap?

Diameter difference +0.50%: under 1%

By overall diameter alone, 235/60R19 is a near match for 235/70R17; 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: 235/70R17 (29.95 in) vs 235/60R19 (30.10 in)235/70R1729.95 in × 9.25 in235/60R1930.10 in × 9.25 in
Side profile and tread width, drawn to the same scale.
235/70R17 vs 235/60R19 differences
Measurement235/70R17235/60R19Difference% diff
Overall diameter29.95 in (760.8 mm)30.10 in (764.6 mm)+0.15 in (+3.8 mm)+0.50%
Sidewall height6.48 in (164.5 mm)5.55 in (141.0 mm)−0.93 in (−23.5 mm)−14.29%
Section width9.25 in (235.0 mm)9.25 in (235.0 mm)0.00 in (0.0 mm)0.00%
Circumference94.10 in (2,390.1 mm)94.57 in (2,402.1 mm)+0.47 in (+11.9 mm)+0.50%
Revolutions per mile673670−3−0.50%
True speed with the speedometer calibrated for 235/70R17
IndicatedActual on 235/70R17Actual on 235/60R19Difference
30 mph30.0 mph30.1 mph+0.1 mph
60 mph60.0 mph60.3 mph+0.3 mph
75 mph75.0 mph75.4 mph+0.4 mph

Ride-height change: 235/60R19 raises the vehicle by 0.07 in (1.9 mm) at the axle (half the +3.8 mm diameter difference).

235/60R19 is 0.15 in taller than 235/70R17 and the same width, a 0.50% difference in overall diameter.

With the speedometer calibrated for 235/70R17, an indicated 60 mph is actually 60.3 mph on 235/60R19, and revolutions per mile change from 673 to 670.

235/60R19 mounts on a 19-inch wheel, a plus-2 fitment from the 17-inch wheel of 235/70R17.

Size pages

Other comparisons with 235/70R17

Other comparisons with 235/60R19

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