305/30R24 tire size

A 305/30R24 tire is 31.20 in (792.6 mm) tall and 12.01 in (305.0 mm) wide, and turns 646 revolutions per mile.

• 31.20 inOverall diameter
• 3.60 inSidewall height
• 646Revolutions per mile
• 31.2x12.0R24Flotation equivalent

305/30R24 is a 24-inch tire with a 305 mm (12.01 in) section width and a 30% aspect ratio, giving a 3.60-inch sidewall and a flotation-style size of about 31.2x12.0R24.

Its overall diameter is 31.20 inches, so it rolls 98.0 inches per revolution and turns about 646 times per mile.

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

Compare 305/30R24 with plausible swaps

• 285/35R22 vs 305/30R24 (−4.33%)
• 255/40R22 vs 305/30R24 (−3.76%)
• 265/40R22 vs 305/30R24 (−2.75%)
• 305/35R22 vs 305/30R24 (−2.56%)
• 275/40R22 vs 305/30R24 (−1.74%)
• 285/40R22 vs 305/30R24 (−0.73%)
• 295/40R22 vs 305/30R24 (+0.28%)
• 265/45R22 vs 305/30R24 (+0.59%)
• 305/40R22 vs 305/30R24 (+1.29%)
• 275/45R22 vs 305/30R24 (+1.73%)
• 285/45R22 vs 305/30R24 (+2.86%)
• 285/30R24 vs 305/30R24 (−1.51%)
• 305/30R24 vs 295/35R24 (+2.96%)
• 305/30R24 vs 305/35R24 (+3.85%)

Sizes within 3% of 31.20 in diameter

• 285/50R20 31.22 in (+0.05%)
• 295/40R22 31.29 in (+0.28%)
• 285/45R21 31.10 in (−0.34%)
• 275/65R17 31.07 in (−0.42%)
• 255/70R17 31.06 in (−0.48%)
• 255/65R18 31.05 in (−0.49%)
• 255/60R19 31.05 in (−0.50%)
• 255/55R20 31.04 in (−0.52%)
• 255/50R21 31.04 in (−0.53%)
• 235/65R19 31.03 in (−0.57%)
• 265/45R22 31.39 in (+0.59%)
• 31x10.50R15 31.00 in (−0.66%)
• 31x10.50R16 31.00 in (−0.66%)
• 275/60R18 30.99 in (−0.68%)
• 285/40R22 30.98 in (−0.73%)
• 265/50R21 31.43 in (+0.73%)
• 285/60R18 31.46 in (+0.83%)
• 245/75R17 31.47 in (+0.85%)
• 265/55R20 31.48 in (+0.87%)
• 275/55R19 30.91 in (−0.95%)
• 235/75R17 30.88 in (−1.05%)
• 265/65R18 31.56 in (+1.15%)
• 275/50R20 30.83 in (−1.21%)
• 285/65R17 31.59 in (+1.22%)
• 305/45R20 30.81 in (−1.27%)
• 265/70R17 31.61 in (+1.29%)
• 305/40R22 31.61 in (+1.29%)
• 265/75R16 31.65 in (+1.43%)
• 275/45R21 30.74 in (−1.48%)
• 285/30R24 30.73 in (−1.51%)
• 235/85R16 31.73 in (+1.68%)
• 275/45R22 31.74 in (+1.73%)
• 275/40R22 30.66 in (−1.74%)
• 265/75R15 30.65 in (−1.78%)
• 245/55R20 30.61 in (−1.91%)
• 265/70R16 30.61 in (−1.92%)
• 235/80R17 31.80 in (+1.92%)
• 275/50R21 31.83 in (+1.99%)
• 265/65R17 30.56 in (−2.06%)
• 245/65R18 30.54 in (−2.13%)
• 265/60R18 30.52 in (−2.20%)
• 245/70R17 30.50 in (−2.25%)
• 275/55R20 31.91 in (+2.26%)
• 265/55R19 30.48 in (−2.33%)
• 245/75R16 30.47 in (−2.36%)
• 295/45R20 30.45 in (−2.41%)
• 265/50R20 30.43 in (−2.47%)
• 32x11.50R15 32.00 in (+2.55%)
• 305/35R22 30.41 in (−2.56%)
• 305/50R20 32.01 in (+2.57%)
• 215/85R16 30.39 in (−2.61%)
• 265/45R21 30.39 in (−2.61%)
• 255/60R20 32.05 in (+2.70%)
• 255/70R18 32.06 in (+2.73%)
• 255/75R17 32.06 in (+2.74%)
• 265/40R22 30.35 in (−2.75%)
• 275/65R18 32.07 in (+2.79%)
• 285/45R22 32.10 in (+2.86%)
• 295/40R21 30.29 in (−2.93%)
• 225/75R17 30.29 in (−2.94%)
• 295/35R24 32.13 in (+2.96%)

Open 305/30R24 in the tire size calculator

Source: Calculated from standard tire geometry formulas. Verified 2026-09-27. How these numbers are calculated.