TireSizesFinder

225/45R17 vs 225/35R19

225/35R19 is 0.23 in (5.8 mm) taller than 225/45R17, a +0.91% diameter difference. With the speedometer set for 225/45R17, an indicated 60 mph is 60.5 mph on 225/35R19.

Is this a safe swap?

Diameter difference +0.91%: under 1%

By overall diameter alone, 225/35R19 is a near match for 225/45R17; 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: 225/45R17 (24.97 in) vs 225/35R19 (25.20 in)225/45R1724.97 in × 8.86 in225/35R1925.20 in × 8.86 in
Side profile and tread width, drawn to the same scale.
225/45R17 vs 225/35R19 differences
Measurement225/45R17225/35R19Difference% diff
Overall diameter24.97 in (634.3 mm)25.20 in (640.1 mm)+0.23 in (+5.8 mm)+0.91%
Sidewall height3.99 in (101.3 mm)3.10 in (78.8 mm)−0.89 in (−22.5 mm)−22.22%
Section width8.86 in (225.0 mm)8.86 in (225.0 mm)0.00 in (0.0 mm)0.00%
Circumference78.45 in (1,992.7 mm)79.17 in (2,010.9 mm)+0.72 in (+18.2 mm)+0.91%
Revolutions per mile808800−7−0.91%
True speed with the speedometer calibrated for 225/45R17
IndicatedActual on 225/45R17Actual on 225/35R19Difference
30 mph30.0 mph30.3 mph+0.3 mph
60 mph60.0 mph60.5 mph+0.5 mph
75 mph75.0 mph75.7 mph+0.7 mph

Ride-height change: 225/35R19 raises the vehicle by 0.11 in (2.9 mm) at the axle (half the +5.8 mm diameter difference).

225/35R19 is 0.23 in taller than 225/45R17 and the same width, a 0.91% difference in overall diameter.

With the speedometer calibrated for 225/45R17, an indicated 60 mph is actually 60.5 mph on 225/35R19, and revolutions per mile change from 808 to 800.

225/35R19 mounts on a 19-inch wheel, a plus-2 fitment from the 17-inch wheel of 225/45R17.

Size pages

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