315/60R20 tire size

A 315/60R20 tire is 34.88 in (886.0 mm) tall and 12.40 in (315.0 mm) wide, and turns 578 revolutions per mile.

• 34.88 inOverall diameter
• 7.44 inSidewall height
• 578Revolutions per mile
• 34.9x12.4R20Flotation equivalent

315/60R20 is a 20-inch tire with a 315 mm (12.40 in) section width and a 60% aspect ratio, giving a 7.44-inch sidewall and a flotation-style size of about 34.9x12.4R20.

Its overall diameter is 34.88 inches, so it rolls 109.6 inches per revolution and turns about 578 times per mile.

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

Compare 315/60R20 with plausible swaps

• 285/70R18 vs 315/60R20 (−3.36%)
• 295/70R18 vs 315/60R20 (−1.78%)
• 305/70R18 vs 315/60R20 (−0.20%)
• 285/75R18 vs 315/60R20 (−0.15%)
• 35x12.50R18 vs 315/60R20 (+0.34%)
• 315/70R18 vs 315/60R20 (+1.38%)
• 295/60R20 vs 315/60R20 (−2.71%)
• 275/65R20 vs 315/60R20 (−2.31%)
• 315/60R20 vs 35x12.50R20 (+0.34%)
• 315/60R20 vs 35x13.50R20 (+0.34%)
• 315/60R20 vs 325/60R20 (+1.35%)
• 315/60R20 vs 325/45R22 (−3.92%)
• 315/60R20 vs 325/50R22 (−0.25%)
• 315/60R20 vs 35x12.50R22 (+0.34%)

Sizes within 3% of 34.88 in diameter

• 285/75R18 34.83 in (−0.15%)
• 305/70R18 34.81 in (−0.20%)
• 325/50R22 34.80 in (−0.25%)
• 35x11.50R17 35.00 in (+0.34%)
• 35x12.50R24 35.00 in (+0.34%)
• 35x12.50R15 35.00 in (+0.34%)
• 35x12.50R17 35.00 in (+0.34%)
• 35x12.50R18 35.00 in (+0.34%)
• 35x12.50R20 35.00 in (+0.34%)
• 35x13.50R20 35.00 in (+0.34%)
• 35x12.50R22 35.00 in (+0.34%)
• 315/75R16 34.60 in (−0.80%)
• 325/60R20 35.35 in (+1.35%)
• 315/70R18 35.36 in (+1.38%)
• 315/70R17 34.36 in (−1.49%)
• 295/70R18 34.26 in (−1.78%)
• 315/75R17 35.60 in (+2.07%)
• 275/65R20 34.07 in (−2.31%)
• 295/60R20 33.94 in (−2.71%)

Open 315/60R20 in the tire size calculator

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