How it works

TireFlows

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Result

Diameter

32.24"

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

315/40R22-0.98%335/40R22+0.98%305/45R22+1.77%305/40R22-1.95%345/40R22+1.95%315/45R22+2.87%
Width 12.80 ″Rim 22 ″Dia. 32.24 ″5.12 ″Revs/Mile 625.6Circum. 101.3″
Diameter32.24"
Width12.8"
Sidewall5.12"
Circum.101.273"
Revs/Mile625.6

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