265/40R20 tire size

A 265/40R20 tire is 28.35 in (720.0 mm) tall and 10.43 in (265.0 mm) wide, and turns 711 revolutions per mile.

• 28.35 inOverall diameter
• 4.17 inSidewall height
• 711Revolutions per mile
• 28.3x10.4R20Flotation equivalent

265/40R20 is a 20-inch tire with a 265 mm (10.43 in) section width and a 40% aspect ratio, giving a 4.17-inch sidewall and a flotation-style size of about 28.3x10.4R20.

Its overall diameter is 28.35 inches, so it rolls 89.1 inches per revolution and turns about 711 times per mile.

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

Compare 265/40R20 with plausible swaps

• 285/45R18 vs 265/40R20 (−0.87%)
• 235/55R18 vs 265/40R20 (−0.60%)
• 265/50R18 vs 265/40R20 (+0.31%)
• 245/55R18 vs 265/40R20 (+0.93%)
• 235/50R19 vs 265/40R20 (−0.33%)
• 295/40R19 vs 265/40R20 (−0.19%)
• 265/45R19 vs 265/40R20 (+0.15%)
• 265/35R20 vs 265/40R20 (−3.68%)
• 245/40R20 vs 265/40R20 (−2.22%)
• 255/40R20 vs 265/40R20 (−1.11%)
• 295/35R20 vs 265/40R20 (−0.76%)
• 235/45R20 vs 265/40R20 (−0.07%)
• 265/40R20 vs 275/40R20 (+1.11%)
• 265/40R20 vs 285/40R20 (+2.22%)
• 265/40R20 vs 265/45R20 (+3.68%)
• 265/40R20 vs 305/30R21 (−0.50%)
• 265/40R20 vs 265/35R21 (−0.15%)
• 265/40R20 vs 275/35R21 (+0.82%)
• 265/40R20 vs 255/30R22 (−1.14%)
• 265/40R20 vs 265/30R22 (−0.31%)
• 265/40R20 vs 275/30R22 (+0.53%)

Sizes within 3% of 28.35 in diameter

• 235/45R20 28.33 in (−0.07%)
• 265/45R19 28.39 in (+0.15%)
• 265/35R21 28.30 in (−0.15%)
• 225/70R16 28.40 in (+0.19%)
• 295/40R19 28.29 in (−0.19%)
• 225/75R15 28.29 in (−0.21%)
• 265/50R18 28.43 in (+0.31%)
• 265/30R22 28.26 in (−0.31%)
• 235/50R19 28.25 in (−0.33%)
• 305/30R21 28.20 in (−0.50%)
• 275/30R22 28.50 in (+0.53%)
• 225/65R17 28.52 in (+0.60%)
• 235/55R18 28.18 in (−0.60%)
• 245/65R16 28.54 in (+0.68%)
• 295/35R20 28.13 in (−0.76%)
• 245/60R17 28.57 in (+0.81%)
• 275/35R21 28.58 in (+0.82%)
• 205/75R16 28.11 in (−0.85%)
• 235/60R17 28.10 in (−0.86%)
• 285/45R18 28.10 in (−0.87%)
• 245/55R18 28.61 in (+0.93%)
• 225/60R18 28.63 in (+1.00%)
• 245/50R19 28.65 in (+1.06%)
• 255/50R18 28.04 in (−1.08%)
• 255/45R19 28.04 in (−1.10%)
• 255/40R20 28.03 in (−1.11%)
• 275/40R20 28.66 in (+1.11%)
• 235/65R16 28.03 in (−1.12%)
• 255/35R21 28.03 in (−1.12%)
• 255/30R22 28.02 in (−1.14%)
• 325/30R21 28.68 in (+1.17%)
• 245/45R20 28.68 in (+1.18%)
• 315/35R20 28.68 in (+1.18%)
• 215/65R17 28.00 in (−1.21%)
• 215/75R16 28.70 in (+1.24%)
• 245/40R21 28.72 in (+1.31%)
• 285/40R19 27.98 in (−1.31%)
• 295/30R21 27.97 in (−1.33%)
• 285/30R22 28.73 in (+1.36%)
• 235/70R15 27.95 in (−1.39%)
• 225/55R19 28.74 in (+1.40%)
• 275/45R19 28.74 in (+1.40%)
• 245/35R22 28.75 in (+1.43%)
• 225/50R19 27.86 in (−1.72%)
• 285/35R20 27.85 in (−1.74%)
• 215/70R16 27.85 in (−1.75%)
• 285/35R21 28.85 in (+1.79%)
• 235/75R15 28.88 in (+1.88%)
• 295/25R22 27.81 in (−1.90%)
• 245/30R22 27.79 in (−1.97%)
• 245/35R21 27.75 in (−2.10%)
• 225/55R18 27.74 in (−2.12%)
• 275/45R18 27.74 in (−2.12%)
• 235/70R16 28.95 in (+2.14%)
• 295/30R22 28.97 in (+2.19%)
• 245/40R20 27.72 in (−2.22%)
• 285/40R20 28.98 in (+2.22%)
• 215/75R15 27.70 in (−2.29%)
• 245/45R19 27.68 in (−2.35%)
• 235/65R17 29.03 in (+2.40%)
• 255/35R22 29.03 in (+2.40%)
• 255/40R21 29.03 in (+2.42%)
• 275/40R19 27.66 in (−2.42%)
• 255/45R20 29.04 in (+2.43%)
• 255/50R19 29.04 in (+2.44%)
• 255/55R18 29.04 in (+2.46%)
• 255/60R17 29.05 in (+2.47%)
• 245/50R18 27.65 in (−2.47%)
• 255/65R16 29.05 in (+2.49%)
• 255/70R15 29.06 in (+2.50%)
• 225/60R17 27.63 in (−2.53%)
• 245/55R17 27.61 in (−2.60%)
• 285/45R19 29.10 in (+2.65%)
• 235/60R18 29.10 in (+2.67%)
• 275/35R20 27.58 in (−2.71%)
• 245/60R16 27.57 in (−2.72%)
• 295/35R21 29.13 in (+2.76%)
• 235/55R19 29.18 in (+2.93%)
• 225/65R16 27.52 in (−2.93%)

Open 265/40R20 in the tire size calculator

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