295/30R21 tire size

A 295/30R21 tire is 27.97 in (710.4 mm) tall and 11.61 in (295.0 mm) wide, and turns 721 revolutions per mile.

295/30R21 dimensions
MeasurementInchesMillimeters
Overall diameter27.97 in710.4 mm
Section width11.61 in295.0 mm
Sidewall height3.48 in88.5 mm
Rim diameter21.00 in533.4 mm
Circumference87.87 in2,232 mm
Revolutions per mile721
Flotation equivalent28.0x11.6R21 (approx.)

295/30R21 is a 21-inch tire with a 295 mm (11.61 in) section width and a 30% aspect ratio, giving a 3.48-inch sidewall and a flotation-style size of about 28.0x11.6R21.

Its overall diameter is 27.97 inches, so it rolls 87.9 inches per revolution and turns about 721 times per mile.

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

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Sizes within 3% of 27.97 in diameter

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