265/45R20 tire size

A 265/45R20 tire is 29.39 in (746.5 mm) tall and 10.43 in (265.0 mm) wide, and turns 686 revolutions per mile.

• 29.39 inOverall diameter
• 4.69 inSidewall height
• 686Revolutions per mile
• 29.4x10.4R20Flotation equivalent

265/45R20 is a 20-inch tire with a 265 mm (10.43 in) section width and a 45% aspect ratio, giving a 4.69-inch sidewall and a flotation-style size of about 29.4x10.4R20.

Its overall diameter is 29.39 inches, so it rolls 92.3 inches per revolution and turns about 686 times per mile.

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

Compare 265/45R20 with plausible swaps

• 235/60R18 vs 265/45R20 (−0.98%)
• 245/60R18 vs 265/45R20 (+0.63%)
• 235/55R19 vs 265/45R20 (−0.72%)
• 265/50R19 vs 265/45R20 (+0.15%)
• 245/55R19 vs 265/45R20 (+0.75%)
• 265/40R20 vs 265/45R20 (−3.55%)
• 245/45R20 vs 265/45R20 (−2.41%)
• 255/45R20 vs 265/45R20 (−1.21%)
• 295/40R20 vs 265/45R20 (−0.33%)
• 265/45R20 vs 305/40R20 (+0.74%)
• 265/45R20 vs 245/50R20 (+0.87%)
• 265/45R20 vs 275/45R20 (+1.21%)
• 265/45R20 vs 285/45R20 (+2.41%)
• 265/45R20 vs 265/50R20 (+3.55%)
• 265/45R20 vs 295/35R21 (−0.88%)
• 265/45R20 vs 235/45R21 (−0.21%)
• 265/45R20 vs 265/40R21 (−0.15%)
• 265/45R20 vs 275/40R21 (+0.92%)
• 265/45R20 vs 245/45R21 (+0.99%)
• 265/45R20 vs 315/35R21 (+0.99%)
• 265/45R20 vs 265/35R22 (−0.29%)
• 265/45R20 vs 315/30R22 (+0.17%)

Sizes within 3% of 29.39 in diameter

• 275/25R24 29.41 in (+0.08%)
• 265/50R19 29.43 in (+0.15%)
• 265/40R21 29.35 in (−0.15%)
• 315/30R22 29.44 in (+0.17%)
• 235/45R21 29.33 in (−0.21%)
• 245/75R15 29.47 in (+0.27%)
• 265/35R22 29.30 in (−0.29%)
• 295/40R20 29.29 in (−0.33%)
• 225/75R16 29.29 in (−0.35%)
• 245/70R16 29.50 in (+0.39%)
• 265/60R17 29.52 in (+0.44%)
• 245/65R17 29.54 in (+0.51%)
• 245/60R18 29.57 in (+0.63%)
• 235/55R19 29.18 in (−0.72%)
• 265/70R15 29.61 in (+0.74%)
• 305/40R20 29.61 in (+0.74%)
• 245/55R19 29.61 in (+0.75%)
• 245/50R20 29.65 in (+0.87%)
• 295/35R21 29.13 in (−0.88%)
• 275/40R21 29.66 in (+0.92%)
• 235/60R18 29.10 in (−0.98%)
• 245/45R21 29.68 in (+0.99%)
• 315/35R21 29.68 in (+0.99%)
• 285/45R19 29.10 in (−0.99%)
• 255/70R15 29.06 in (−1.14%)
• 255/65R16 29.05 in (−1.15%)
• 255/60R17 29.05 in (−1.17%)
• 255/55R18 29.04 in (−1.18%)
• 255/50R19 29.04 in (−1.19%)
• 255/45R20 29.04 in (−1.21%)
• 275/45R20 29.74 in (+1.21%)
• 255/40R21 29.03 in (−1.22%)
• 235/65R17 29.03 in (−1.23%)
• 255/35R22 29.03 in (−1.23%)
• 285/40R20 28.98 in (−1.41%)
• 295/30R22 28.97 in (−1.43%)
• 275/50R19 29.83 in (+1.49%)
• 235/70R16 28.95 in (−1.49%)
• 285/35R22 29.85 in (+1.58%)
• 235/75R16 29.88 in (+1.66%)
• 235/75R15 28.88 in (−1.74%)
• 275/55R18 29.91 in (+1.77%)
• 285/35R21 28.85 in (−1.82%)
• 235/70R17 29.95 in (+1.92%)
• 285/40R21 29.98 in (+2.00%)
• 275/60R17 29.99 in (+2.05%)
• 30x9.50R15 30.00 in (+2.08%)
• 235/65R18 30.03 in (+2.17%)
• 245/35R22 28.75 in (−2.17%)
• 255/40R22 30.03 in (+2.18%)
• 255/45R21 30.04 in (+2.20%)
• 225/55R19 28.74 in (−2.20%)
• 275/45R19 28.74 in (−2.20%)
• 255/50R20 30.04 in (+2.21%)
• 255/55R19 30.04 in (+2.22%)
• 255/60R18 30.05 in (+2.24%)
• 285/30R22 28.73 in (−2.24%)
• 255/65R17 30.05 in (+2.25%)
• 255/70R16 30.06 in (+2.26%)
• 245/40R21 28.72 in (−2.29%)
• 215/75R16 28.70 in (−2.36%)
• 245/45R20 28.68 in (−2.41%)
• 315/35R20 28.68 in (−2.41%)
• 285/45R20 30.10 in (+2.41%)
• 235/60R19 30.10 in (+2.42%)
• 325/30R21 28.68 in (−2.42%)
• 275/40R20 28.66 in (−2.48%)
• 245/50R19 28.65 in (−2.53%)
• 225/60R18 28.63 in (−2.59%)
• 245/55R18 28.61 in (−2.65%)
• 235/55R20 30.18 in (+2.68%)
• 275/35R21 28.58 in (−2.76%)
• 245/60R17 28.57 in (−2.77%)
• 245/65R16 28.54 in (−2.89%)
• 225/65R17 28.52 in (−2.97%)

Open 265/45R20 in the tire size calculator

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