185/65R15 tire size

A 185/65R15 tire is 24.47 in (621.5 mm) tall and 7.28 in (185.0 mm) wide, and turns 824 revolutions per mile.

185/65R15 dimensions
MeasurementInchesMillimeters
Overall diameter24.47 in621.5 mm
Section width7.28 in185.0 mm
Sidewall height4.73 in120.3 mm
Rim diameter15.00 in381.0 mm
Circumference76.87 in1,952 mm
Revolutions per mile824
Flotation equivalent24.5x7.3R15 (approx.)

185/65R15 is a 15-inch tire with a 185 mm (7.28 in) section width and a 65% aspect ratio, giving a 4.73-inch sidewall and a flotation-style size of about 24.5x7.3R15.

Its overall diameter is 24.47 inches, so it rolls 76.9 inches per revolution and turns about 824 times per mile.

40 other sizes in this list are within 3% of that diameter.

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Sizes within 3% of 24.47 in diameter

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