TireSizesFinder

215/60R16 vs 295/35R18

295/35R18 is 0.03 in (0.7 mm) shorter than 215/60R16, a −0.11% diameter difference. With the speedometer set for 215/60R16, an indicated 60 mph is 59.9 mph on 295/35R18.

Is this a safe swap?

Diameter difference −0.11%: under 1%

By overall diameter alone, 295/35R18 is a near match for 215/60R16; 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: 215/60R16 (26.16 in) vs 295/35R18 (26.13 in)215/60R1626.16 in × 8.46 in295/35R1826.13 in × 11.61 in
Side profile and tread width, drawn to the same scale.
215/60R16 vs 295/35R18 differences
Measurement215/60R16295/35R18Difference% diff
Overall diameter26.16 in (664.4 mm)26.13 in (663.7 mm)−0.03 in (−0.7 mm)−0.11%
Sidewall height5.08 in (129.0 mm)4.06 in (103.3 mm)−1.01 in (−25.7 mm)−19.96%
Section width8.46 in (215.0 mm)11.61 in (295.0 mm)+3.15 in (+80.0 mm)+37.21%
Circumference82.18 in (2,087.3 mm)82.09 in (2,085.1 mm)−0.09 in (−2.2 mm)−0.11%
Revolutions per mile771772+1+0.11%
True speed with the speedometer calibrated for 215/60R16
IndicatedActual on 215/60R16Actual on 295/35R18Difference
30 mph30.0 mph30.0 mph0.0 mph
60 mph60.0 mph59.9 mph−0.1 mph
75 mph75.0 mph74.9 mph−0.1 mph

Ride-height change: 295/35R18 lowers the vehicle by 0.01 in (0.3 mm) at the axle (half the −0.7 mm diameter difference).

295/35R18 is 0.03 in shorter than 215/60R16 and 80 mm wider, a 0.11% difference in overall diameter.

With the speedometer calibrated for 215/60R16, an indicated 60 mph is actually 59.9 mph on 295/35R18, and revolutions per mile change from 771 to 772.

295/35R18 mounts on a 18-inch wheel, a plus-2 fitment from the 16-inch wheel of 215/60R16.

Size pages

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