275/30R20 tire size

A 275/30R20 tire is 26.50 in (673.0 mm) tall and 10.83 in (275.0 mm) wide, and turns 761 revolutions per mile.

• 26.50 inOverall diameter
• 3.25 inSidewall height
• 761Revolutions per mile
• 26.5x10.8R20Flotation equivalent

275/30R20 is a 20-inch tire with a 275 mm (10.83 in) section width and a 30% aspect ratio, giving a 3.25-inch sidewall and a flotation-style size of about 26.5x10.8R20.

Its overall diameter is 26.50 inches, so it rolls 83.2 inches per revolution and turns about 761 times per mile.

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

Compare 275/30R20 with plausible swaps

• 235/45R18 vs 275/30R20 (−0.64%)
• 265/40R18 vs 275/30R20 (−0.56%)
• 215/50R18 vs 275/30R20 (−0.12%)
• 275/40R18 vs 275/30R20 (+0.62%)
• 245/45R18 vs 275/30R20 (+0.70%)
• 305/30R19 vs 275/30R20 (−1.10%)
• 265/35R19 vs 275/30R20 (−0.73%)
• 235/40R19 vs 275/30R20 (−0.36%)
• 275/35R19 vs 275/30R20 (+0.31%)
• 245/40R19 vs 275/30R20 (+0.83%)
• 255/30R20 vs 275/30R20 (−1.78%)
• 265/30R20 vs 275/30R20 (−0.89%)
• 235/35R20 vs 275/30R20 (−0.07%)
• 275/30R20 vs 285/30R20 (+0.89%)
• 275/30R20 vs 245/35R20 (+0.97%)
• 275/30R20 vs 295/30R20 (+1.78%)
• 275/30R20 vs 275/35R20 (+4.09%)

Sizes within 3% of 26.50 in diameter

• 205/65R16 26.49 in (−0.01%)
• 225/65R15 26.52 in (+0.07%)
• 235/35R20 26.48 in (−0.07%)
• 215/50R18 26.46 in (−0.12%)
• 275/35R19 26.58 in (+0.31%)
• 225/70R14 26.40 in (−0.36%)
• 235/40R19 26.40 in (−0.36%)
• 225/60R16 26.63 in (+0.51%)
• 245/50R17 26.65 in (+0.56%)
• 265/40R18 26.35 in (−0.56%)
• 275/40R18 26.66 in (+0.62%)
• 235/45R18 26.33 in (−0.64%)
• 215/55R17 26.31 in (−0.70%)
• 245/45R18 26.68 in (+0.70%)
• 265/35R19 26.30 in (−0.73%)
• 205/70R15 26.30 in (−0.74%)
• 215/75R14 26.70 in (+0.76%)
• 245/40R19 26.72 in (+0.83%)
• 265/30R20 26.26 in (−0.89%)
• 285/30R20 26.73 in (+0.89%)
• 235/50R17 26.25 in (−0.92%)
• 225/55R17 26.74 in (+0.94%)
• 245/35R20 26.75 in (+0.97%)
• 305/30R19 26.20 in (−1.10%)
• 225/35R20 26.20 in (−1.11%)
• 215/60R16 26.16 in (−1.28%)
• 215/70R15 26.85 in (+1.34%)
• 285/35R19 26.85 in (+1.35%)
• 225/50R18 26.86 in (+1.37%)
• 295/35R18 26.13 in (−1.38%)
• 205/75R14 26.11 in (−1.47%)
• 235/60R15 26.10 in (−1.49%)
• 225/40R19 26.09 in (−1.55%)
• 255/45R17 26.04 in (−1.74%)
• 255/40R18 26.03 in (−1.75%)
• 255/35R19 26.03 in (−1.77%)
• 255/30R20 26.02 in (−1.78%)
• 295/30R20 26.97 in (+1.78%)
• 225/45R19 26.97 in (+1.80%)
• 285/40R18 26.98 in (+1.81%)
• 215/65R15 26.00 in (−1.86%)
• 27x8.50R14 27.00 in (+1.90%)
• 215/65R16 27.00 in (+1.92%)
• 225/45R18 25.97 in (−1.98%)
• 295/30R19 25.97 in (−1.99%)
• 255/35R20 27.03 in (+2.01%)
• 255/40R19 27.03 in (+2.02%)
• 255/45R18 27.04 in (+2.04%)
• 255/50R17 27.04 in (+2.05%)
• 225/40R20 27.09 in (+2.23%)
• 235/60R16 27.10 in (+2.29%)
• 205/75R15 27.11 in (+2.30%)
• 205/55R17 25.88 in (−2.33%)
• 295/35R19 27.13 in (+2.39%)
• 225/50R17 25.86 in (−2.41%)
• 285/35R18 25.85 in (−2.42%)
• 215/70R14 25.85 in (−2.44%)
• 215/60R17 27.16 in (+2.50%)
• 235/55R17 27.18 in (+2.57%)
• 245/35R19 25.75 in (−2.81%)
• 195/70R15 25.75 in (−2.82%)
• 225/55R16 25.74 in (−2.84%)
• 235/50R18 27.25 in (+2.85%)
• 285/30R19 25.73 in (−2.88%)
• 245/40R18 25.72 in (−2.94%)
• 225/75R14 27.29 in (+2.99%)

Open 275/30R20 in the tire size calculator

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