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285/35R24 tire size

285/35R24 is a metric size: 31.9" tall, 11.2" wide, on a 24" rim — about a 32x11.00R24. The sidewall is 3.9" and the tire turns 633 times per mile.

Diameter 31.9" sidewall 3.93" 24" rim width 285 mm (11.2")
285/35R24: 285 mm wide, sidewall 35% of the width (3.93"), on a 24" rim → 31.85" tall.

285/35R24 specs

Overall diameter (height)31.85" · 809 mm
Section width11.22" · 285 mm
Sidewall height3.93" · 100 mm (35% of width)
Rim diameter24"
Circumference100.07" · 2.542 m
Revolutions per mile633 (393 per km)
Inch (flotation) equivalent32x11.00R24

Equivalent sizes on a 24" 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
305/35R2432.41"+1.73%+20 mm61.0 mphcalculate →
295/35R2432.13"+0.87%+10 mm60.5 mphcalculate →
295/30R2430.97"-2.78%+10 mm58.3 mphcalculate →
335/30R2431.91"+0.19%+50 mm60.1 mphcalculate →
315/35R2432.68"+2.60%+30 mm61.6 mphcalculate →
405/25R2431.97"+0.37%+120 mm60.2 mphcalculate →

Try another size against 285/35R24

Questions

What size is 285/35R24 in inches?

285/35R24 is about 31.9" tall and 11.2" wide on a 24-inch rim — roughly a 32x11.00R24 in inch sizing.

What does 285/35R24 mean?

285 mm section width, sidewall 35% of the width (3.93"), radial construction, 24-inch rim.

What tire sizes are equivalent to 285/35R24?

On the same 24" rim, within 3% of the diameter: 335/30R24 (+0.19%), 405/25R24 (+0.37%), 295/35R24 (+0.87%), 305/35R24 (+1.73%), 315/35R24 (+2.60%), 295/30R24 (-2.78%).

How many revolutions per mile does a 285/35R24 tire make?

About 633 revolutions per mile (circumference 100.1").

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.