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315/35R17 tire size

315/35R17 is a metric size: 25.7" tall, 12.4" wide, on a 17" rim — about a 25.5x12.50R17. The sidewall is 4.3" and the tire turns 785 times per mile.

Diameter 25.7" sidewall 4.34" 17" rim width 315 mm (12.4")
315/35R17: 315 mm wide, sidewall 35% of the width (4.34"), on a 17" rim → 25.68" tall.

315/35R17 specs

Overall diameter (height)25.68" · 652 mm
Section width12.40" · 315 mm
Sidewall height4.34" · 110 mm (35% of width)
Rim diameter17"
Circumference80.68" · 2.049 m
Revolutions per mile785 (488 per km)
Inch (flotation) equivalent25.5x12.50R17

Equivalent sizes on a 17" rim

Sizes within ±5% of the overall diameter. Green rows are inside the usual ±3% limit for keeping the speedometer, ABS and gearing right; red rows are bigger changes that need clearance checks.

SizeDiameterDifferenceWidthSpeedo at 60
225/45R17 common24.97"-2.76%-90 mm58.3 mphcompare →
225/50R17 common25.86"+0.69%-90 mm60.4 mphcompare →
225/55R17 common26.74"+4.14%-90 mm62.5 mphcompare →
215/45R17 common24.62"-4.14%-100 mm57.5 mphcompare →
205/50R17 common25.07"-2.38%-110 mm58.6 mphcompare →
215/55R17 common26.31"+2.45%-100 mm61.5 mphcompare →
215/50R17 common25.46"-0.84%-100 mm59.5 mphcompare →
235/45R17 common25.33"-1.38%-80 mm59.2 mphcompare →
245/45R17 common25.68"0.00%-70 mm60.0 mphcompare →
245/40R17 common24.72"-3.76%-70 mm57.7 mphcompare →
235/50R17 common26.25"+2.22%-80 mm61.3 mphcompare →
255/40R17 common25.03"-2.53%-60 mm58.5 mphcompare →
205/55R1725.88"+0.77%-110 mm60.5 mphcompare →
275/40R1725.66"-0.08%-40 mm60.0 mphcompare →
245/50R1726.65"+3.76%-70 mm62.3 mphcompare →
235/40R1724.40"-4.98%-80 mm57.0 mphcompare →
255/45R1726.04"+1.38%-60 mm60.8 mphcompare →
335/35R1726.23"+2.15%+20 mm61.3 mphcalculate →
275/35R1724.58"-4.29%-40 mm57.4 mphcalculate →
155/70R1725.54"-0.54%-160 mm59.7 mphcalculate →
285/40R1725.98"+1.15%-30 mm60.7 mphcalculate →
265/40R1725.35"-1.30%-50 mm59.2 mphcalculate →
195/60R1726.21"+2.07%-120 mm61.2 mphcalculate →
175/65R1725.96"+1.07%-140 mm60.6 mphcalculate →
145/80R1726.13"+1.76%-170 mm61.1 mphcalculate →
295/35R1725.13"-2.15%-20 mm58.7 mphcalculate →
155/80R1726.76"+4.22%-160 mm62.5 mphcalculate →
185/60R1725.74"+0.23%-130 mm60.1 mphcalculate →
26x6.00R1726.00"+1.24%-163 mm60.7 mphcalculate →
145/70R1724.99"-2.68%-170 mm58.4 mphcalculate →
165/70R1726.09"+1.61%-150 mm61.0 mphcalculate →
295/40R1726.29"+2.38%-20 mm61.4 mphcalculate →
205/60R1726.69"+3.91%-110 mm62.3 mphcalculate →

Plus / minus sizing: 16" and 18" rims

Same overall height on a different rim. Check wheel width and clearance before switching.

SizeDiameterDifferenceWidthSpeedo at 60
245/40R18 common25.72"+0.14%-70 mm60.1 mphcompare →
205/60R16 common25.69"+0.02%-110 mm60.0 mphcompare →
275/35R18 common25.58"-0.40%-40 mm59.8 mphcompare →
215/45R18 common25.62"-0.25%-100 mm59.9 mphcompare →
225/55R1625.74"+0.25%-90 mm60.1 mphcompare →
285/35R1825.85"+0.67%-30 mm60.4 mphcompare →
315/30R1825.44"-0.94%0 mm59.4 mphcompare →
335/30R1825.91"+0.90%+20 mm60.5 mphcompare →
245/50R1625.65"-0.14%-70 mm59.9 mphcompare →
275/45R1625.74"+0.25%-40 mm60.1 mphcalculate →
315/40R1625.92"+0.94%0 mm60.6 mphcalculate →

Try another size against 315/35R17

Questions

What size is 315/35R17 in inches?

315/35R17 is about 25.7" tall and 12.4" wide on a 17-inch rim — roughly a 25.5x12.50R17 in inch sizing.

What does 315/35R17 mean?

315 mm section width, sidewall 35% of the width (4.34"), radial construction, 17-inch rim.

What tire sizes are equivalent to 315/35R17?

On the same 17" rim, within 3% of the diameter: 245/45R17 (0.00%), 275/40R17 (-0.08%), 185/60R17 (+0.23%), 155/70R17 (-0.54%), 225/50R17 (+0.69%), 205/55R17 (+0.77%).

How many revolutions per mile does a 315/35R17 tire make?

About 785 revolutions per mile (circumference 80.7").

How these numbers are computed

Diameter = rim + 2 × sidewall, sidewall = width × aspect ÷ 100, circumference = π × diameter, revolutions per mile = 63,360 ÷ circumference. Real tires differ by brand by a few tenths of an inch. Last reviewed October 14, 2026.