How it works

TireFlows

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Result

Diameter

27.7"

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

235/70R15+0.92%225/70R15-1.07%235/65R15-2.42%
Width 8.46 ″Rim 15 ″Dia. 27.70 ″6.35 ″Revs/Mile 728.2Circum. 87.0″
Diameter27.7"
Width8.46"
Sidewall6.35"
Circum.87.012"
Revs/Mile728.2

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