How it works

TireFlows

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Result

Diameter

31.07"

Calculated from size marking (math only) — not a fitment guarantee. How it works

Alternate Tire Sizes

Closest diameters (math only · same rim · within 3%)

Tap a size to compare it with your current size

255/70R17-0.06%295/60R17-0.44%265/65R17-1.65%285/65R17+1.65%265/70R17+1.71%285/60R17-1.96%
Width 10.83 ″Rim 17 ″Dia. 31.07 ″7.04 ″Revs/Mile 649.0Circum. 97.6″
Diameter31.07"
Width10.83"
Sidewall7.04"
Circum.97.624"
Revs/Mile649

How results are calculated

Tire dimensions are calculated from the metric size format (width / aspect ratio / rim diameter). Diameter, circumference, and revolutions per mile are derived mathematically — no fitment or vehicle data is used.

The 3% rule is a general reference for acceptable diameter difference, not a guarantee. Always check your vehicle manual or consult a tire professional.

How it works