255/35R24 tire size in inches

A 255/35R24 tire measures

31.0" tall × 10.0" wide

3.51" sidewall on a 24" wheel. 650 revolutions per mile.

255/35R24 means a tire 255 mm wide, with sidewalls 35% as tall as the tire is wide (89 mm), radial construction (R), for a 24 inch wheel.

31.0"24" rim3.5"10.0" wide
255/35R24: 31.0 inches tall, 10.0 inches wide, on a 24 inch rim, drawn to scale

255/35R24 specs

Overall diameter (height)31.03 inches (788 mm)
Section width10.04 inches (255 mm)
Sidewall height3.51 inches (89 mm)
Wheel (rim) diameter24 inches
Circumference97.5 inches (2,476 mm)
Revolutions per mile650
Revolutions per kilometer404
Approximate rim width8.5" to 10.0"
In inches (flotation style)31.0x10.0R24
Aspect ratio35%

Calculated from the size. Real tires differ by brand, model and tread depth, typically by a few tenths of an inch.

Sizes that can replace 255/35R24 on a 24" wheel

These 24" sizes are within 3% of 255/35R24's overall diameter, the range most tire shops treat as interchangeable.

SizeDiameterWidthDifferenceReal speed at 60
355/25R2430.99"13.98"−0.1%59.9 mphCompare
295/30R2430.97"11.61"−0.2%59.9 mphCompare
305/30R2431.20"12.01"+0.6%60.3 mphCompare
345/25R2430.79"13.58"−0.8%59.5 mphCompare
265/35R2431.30"10.43"+0.9%60.5 mphCompare
285/30R2430.73"11.22"−1.0%59.4 mphCompare
315/30R2431.44"12.40"+1.3%60.8 mphCompare
335/25R2430.59"13.19"−1.4%59.2 mphCompare
275/30R2430.50"10.83"−1.7%59.0 mphCompare
275/35R2431.58"10.83"+1.8%61.1 mphCompare
325/25R2430.40"12.80"−2.0%58.8 mphCompare
325/30R2431.68"12.80"+2.1%61.3 mphCompare

Same height on other wheel sizes (plus and minus sizing)

SizeWheelDiameterDifference
235/65R1919"31.03"0.0%Compare
255/45R2222"31.04"0.0%Compare
255/50R2121"31.04"0.0%Compare
255/55R2020"31.04"+0.1%Compare
255/60R1919"31.05"+0.1%Compare
305/50R1919"31.01"−0.1%Compare
215/65R2020"31.00"−0.1%Compare
255/65R1818"31.05"+0.1%Compare
255/70R1717"31.06"+0.1%Compare
31x10.50R1515"31.00"−0.1%Compare
225/85R1616"31.06"+0.1%Compare
255/75R1616"31.06"+0.1%Compare

One size up or down

Compare 255/35R24 with another size

With 265/35R24 tires, when your speedometer says 60 mph you are really going

60.5 mph

265/35R24 is +0.28 inches (+0.9%) in overall diameter. That is within the 3% most shops and makers allow.

255/35R24265/35R24Difference%
Overall diameter31.03"31.30"+0.28"+0.9%
Section width10.04"10.43"+0.39"+3.9%
Sidewall height3.51"3.65"+0.14"+3.9%
Circumference97.48"98.34"+0.87"+0.9%
Revolutions per mile650.0644.3−5.7−0.9%

Questions

How tall is a 255/35R24 tire?
A 255/35R24 tire is 31.0 inches tall (788 mm), calculated from the size. It is 10.0 inches wide with 3.5 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
What does 255/35R24 mean?
255/35R24 means a tire 255 mm wide, with sidewalls 35% as tall as the tire is wide (89 mm), radial construction (R), for a 24 inch wheel.
How many revolutions per mile does a 255/35R24 tire make?
About 650 revolutions per mile, based on a circumference of 97.5 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
What rim width fits a 255/35R24 tire?
Roughly 8.5" to 10.0". Check the tire maker's approved rim range for the exact model before buying wheels.
Can I use 355/25R24 instead of 255/35R24?
355/25R24 is −0.04 inches (−0.1%) in overall diameter, so at an indicated 60 mph you would be doing 59.9 mph. Differences under 3% are usually fine, but check clearance, load index and your vehicle's placard.

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