315/70R17 tire size

A 315/70R17 tire is 34.36 in (872.8 mm) tall and 12.40 in (315.0 mm) wide, and turns 587 revolutions per mile.

• 34.36 inOverall diameter
• 8.68 inSidewall height
• 587Revolutions per mile
• 34.4x12.4R17Flotation equivalent

315/70R17 is a 17-inch tire with a 315 mm (12.40 in) section width and a 70% aspect ratio, giving a 8.68-inch sidewall and a flotation-style size of about 34.4x12.4R17.

Its overall diameter is 34.36 inches, so it rolls 108.0 inches per revolution and turns about 587 times per mile.

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

Compare 315/70R17 with plausible swaps

• 35x12.50R15 vs 315/70R17 (+1.86%)
• 315/75R16 vs 315/70R17 (+0.70%)
• 33x12.50R17 vs 315/70R17 (−3.96%)
• 295/70R17 vs 315/70R17 (−3.21%)
• 285/75R17 vs 315/70R17 (−1.55%)
• 315/70R17 vs 35x11.50R17 (+1.86%)
• 315/70R17 vs 35x12.50R17 (+1.86%)
• 315/70R17 vs 315/75R17 (+3.61%)
• 315/70R17 vs 275/70R18 (−3.51%)
• 315/70R17 vs 285/70R18 (−1.90%)
• 315/70R17 vs 295/70R18 (−0.30%)
• 315/70R17 vs 305/70R18 (+1.31%)
• 315/70R17 vs 285/75R18 (+1.36%)
• 315/70R17 vs 35x12.50R18 (+1.86%)
• 315/70R17 vs 315/70R18 (+2.91%)

Sizes within 3% of 34.36 in diameter

• 295/70R18 34.26 in (−0.30%)
• 315/75R16 34.60 in (+0.70%)
• 275/65R20 34.07 in (−0.84%)
• 295/60R20 33.94 in (−1.24%)
• 325/50R22 34.80 in (+1.26%)
• 305/70R18 34.81 in (+1.31%)
• 285/75R18 34.83 in (+1.36%)
• 315/60R20 34.88 in (+1.51%)
• 285/75R17 33.83 in (−1.55%)
• 35x11.50R17 35.00 in (+1.86%)
• 35x12.50R24 35.00 in (+1.86%)
• 35x12.50R15 35.00 in (+1.86%)
• 35x12.50R17 35.00 in (+1.86%)
• 35x12.50R18 35.00 in (+1.86%)
• 35x12.50R20 35.00 in (+1.86%)
• 35x13.50R20 35.00 in (+1.86%)
• 35x12.50R22 35.00 in (+1.86%)
• 285/70R18 33.71 in (−1.90%)
• 325/45R22 33.52 in (−2.46%)
• 285/60R20 33.46 in (−2.61%)
• 325/60R20 35.35 in (+2.89%)
• 315/70R18 35.36 in (+2.91%)

Open 315/70R17 in the tire size calculator

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