285/55R22 tire size in inches

A 285/55R22 tire measures

34.3" tall × 11.2" wide

6.17" sidewall on a 22" wheel. 587 revolutions per mile.

285/55R22 means a tire 285 mm wide, with sidewalls 55% as tall as the tire is wide (157 mm), radial construction (R), for a 22 inch wheel.

34.3"22" rim6.2"11.2" wide
285/55R22: 34.3 inches tall, 11.2 inches wide, on a 22 inch rim, drawn to scale

285/55R22 specs

Overall diameter (height)34.34 inches (872 mm)
Section width11.22 inches (285 mm)
Sidewall height6.17 inches (157 mm)
Wheel (rim) diameter22 inches
Circumference107.9 inches (2,740 mm)
Revolutions per mile587
Revolutions per kilometer365
Approximate rim width8.0" to 9.5"
In inches (flotation style)34.3x11.2R22
Aspect ratio55%

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 285/55R22 on a 22" wheel

These 22" sizes are within 3% of 285/55R22's overall diameter, the range most tire shops treat as interchangeable.

SizeDiameterWidthDifferenceReal speed at 60
315/50R2234.40"12.40"+0.2%60.1 mphCompare
345/45R2234.22"13.58"−0.3%59.8 mphCompare
355/45R2234.58"13.98"+0.7%60.4 mphCompare
305/50R2234.01"12.01"−1.0%59.4 mphCompare
275/55R2233.91"10.83"−1.3%59.2 mphCompare
295/55R2234.78"11.61"+1.3%60.8 mphCompare
325/50R2234.80"12.80"+1.3%60.8 mphCompare
335/45R2233.87"13.19"−1.4%59.2 mphCompare
35x12.50R2235.00"12.50"+1.9%61.1 mphCompare
295/50R2233.61"11.61"−2.1%58.7 mphCompare
325/45R2233.52"12.80"−2.4%58.6 mphCompare
335/50R2235.19"13.19"+2.5%61.5 mphCompare

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

SizeWheelDiameterDifference
325/60R1919"34.35"0.0%Compare
315/70R1717"34.36"+0.1%Compare
355/55R1919"34.37"+0.1%Compare
275/85R1616"34.41"+0.2%Compare
305/60R2020"34.41"+0.2%Compare
295/75R1717"34.42"+0.2%Compare
295/70R1818"34.26"−0.2%Compare
275/75R1818"34.24"−0.3%Compare
325/40R2424"34.24"−0.3%Compare
305/55R2121"34.21"−0.4%Compare
335/50R2121"34.19"−0.4%Compare
335/55R2020"34.51"+0.5%Compare

One size up or down

Compare 285/55R22 with another size

With 295/55R22 tires, when your speedometer says 60 mph you are really going

60.8 mph

295/55R22 is +0.43 inches (+1.3%) in overall diameter. That is within the 3% most shops and makers allow.

285/55R22295/55R22Difference%
Overall diameter34.34"34.78"+0.43"+1.3%
Section width11.22"11.61"+0.39"+3.5%
Sidewall height6.17"6.39"+0.22"+3.5%
Circumference107.89"109.25"+1.36"+1.3%
Revolutions per mile587.3580.0−7.3−1.2%

Questions

How tall is a 285/55R22 tire?
A 285/55R22 tire is 34.3 inches tall (872 mm), calculated from the size. It is 11.2 inches wide with 6.2 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
What does 285/55R22 mean?
285/55R22 means a tire 285 mm wide, with sidewalls 55% as tall as the tire is wide (157 mm), radial construction (R), for a 22 inch wheel.
How many revolutions per mile does a 285/55R22 tire make?
About 587 revolutions per mile, based on a circumference of 107.9 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
What rim width fits a 285/55R22 tire?
Roughly 8.0" to 9.5". Check the tire maker's approved rim range for the exact model before buying wheels.
Can I use 315/50R22 instead of 285/55R22?
315/50R22 is +0.06 inches (+0.2%) in overall diameter, so at an indicated 60 mph you would be doing 60.1 mph. Differences under 3% are usually fine, but check clearance, load index and your vehicle's placard.

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