305/30R19 tire size

A 305/30R19 tire is 26.20 in (665.6 mm) tall and 12.01 in (305.0 mm) wide, and turns 770 revolutions per mile.

• 26.20 inOverall diameter
• 3.60 inSidewall height
• 770Revolutions per mile
• 26.2x12.0R19Flotation equivalent

305/30R19 is a 19-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 26.2x12.0R19.

Its overall diameter is 26.20 inches, so it rolls 82.3 inches per revolution and turns about 770 times per mile.

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

Compare 305/30R19 with plausible swaps

• 255/45R17 vs 305/30R19 (−0.65%)
• 235/50R17 vs 305/30R19 (+0.18%)
• 215/55R17 vs 305/30R19 (+0.41%)
• 255/40R18 vs 305/30R19 (−0.66%)
• 295/35R18 vs 305/30R19 (−0.29%)
• 235/45R18 vs 305/30R19 (+0.47%)
• 265/40R18 vs 305/30R19 (+0.54%)
• 285/30R19 vs 305/30R19 (−1.80%)
• 295/30R19 vs 305/30R19 (−0.90%)
• 255/35R19 vs 305/30R19 (−0.68%)
• 225/40R19 vs 305/30R19 (−0.45%)
• 305/30R19 vs 265/35R19 (+0.38%)
• 305/30R19 vs 235/40R19 (+0.75%)
• 305/30R19 vs 305/35R19 (+4.58%)
• 305/30R19 vs 255/30R20 (−0.69%)
• 305/30R19 vs 225/35R20 (−0.02%)
• 305/30R19 vs 265/30R20 (+0.21%)
• 305/30R19 vs 235/35R20 (+1.04%)
• 305/30R19 vs 275/30R20 (+1.11%)

Sizes within 3% of 26.20 in diameter

• 225/35R20 26.20 in (−0.02%)
• 215/60R16 26.16 in (−0.18%)
• 235/50R17 26.25 in (+0.18%)
• 265/30R20 26.26 in (+0.21%)
• 295/35R18 26.13 in (−0.29%)
• 205/70R15 26.30 in (+0.36%)
• 205/75R14 26.11 in (−0.38%)
• 265/35R19 26.30 in (+0.38%)
• 235/60R15 26.10 in (−0.39%)
• 215/55R17 26.31 in (+0.41%)
• 225/40R19 26.09 in (−0.45%)
• 235/45R18 26.33 in (+0.47%)
• 265/40R18 26.35 in (+0.54%)
• 255/45R17 26.04 in (−0.65%)
• 255/40R18 26.03 in (−0.66%)
• 255/35R19 26.03 in (−0.68%)
• 255/30R20 26.02 in (−0.69%)
• 225/70R14 26.40 in (+0.75%)
• 235/40R19 26.40 in (+0.75%)
• 215/65R15 26.00 in (−0.77%)
• 225/45R18 25.97 in (−0.89%)
• 295/30R19 25.97 in (−0.90%)
• 215/50R18 26.46 in (+0.99%)
• 235/35R20 26.48 in (+1.04%)
• 205/65R16 26.49 in (+1.10%)
• 275/30R20 26.50 in (+1.11%)
• 225/65R15 26.52 in (+1.19%)
• 205/55R17 25.88 in (−1.25%)
• 225/50R17 25.86 in (−1.32%)
• 285/35R18 25.85 in (−1.34%)
• 215/70R14 25.85 in (−1.35%)
• 275/35R19 26.58 in (+1.43%)
• 225/60R16 26.63 in (+1.62%)
• 245/50R17 26.65 in (+1.68%)
• 245/35R19 25.75 in (−1.73%)
• 195/70R15 25.75 in (−1.74%)
• 275/40R18 26.66 in (+1.74%)
• 225/55R16 25.74 in (−1.76%)
• 285/30R19 25.73 in (−1.80%)
• 245/45R18 26.68 in (+1.82%)
• 245/40R18 25.72 in (−1.86%)
• 215/75R14 26.70 in (+1.88%)
• 245/40R19 26.72 in (+1.95%)
• 205/60R16 25.69 in (−1.98%)
• 245/45R17 25.68 in (−2.00%)
• 285/30R20 26.73 in (+2.01%)
• 225/55R17 26.74 in (+2.06%)
• 275/40R17 25.66 in (−2.07%)
• 245/35R20 26.75 in (+2.09%)
• 225/60R15 25.63 in (−2.19%)
• 215/45R18 25.62 in (−2.24%)
• 275/35R18 25.58 in (−2.39%)
• 215/70R15 26.85 in (+2.46%)
• 285/35R19 26.85 in (+2.48%)
• 225/50R18 26.86 in (+2.49%)
• 195/75R14 25.52 in (−2.63%)
• 275/30R19 25.50 in (−2.70%)
• 205/65R15 25.49 in (−2.72%)
• 235/35R19 25.48 in (−2.78%)
• 215/50R17 25.46 in (−2.82%)
• 295/30R20 26.97 in (+2.91%)
• 225/45R19 26.97 in (+2.93%)
• 285/40R18 26.98 in (+2.94%)

Open 305/30R19 in the tire size calculator

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