tireheight.com

285/50R22 in inches

A 285/50R22 tire is 33.2″ tall and 11.2″ wide, and fits a 22″ wheel. In inches it is written 33.2×11.2R22.

Diameter33.22″
Width11.22″
Sidewall5.61″
285/50R22 drawn to scale: 33.22 inch diameter, 5.61 inch sidewall, 22 inch wheel, 11.22 inch tread width22″ wheel5.61″33.22″ overall11.22″ wideSide view
Drawn to scale. Nominal dimensions calculated from the size code.
Manufacturer data

How tall 285/50R22 tires really are

Heights published by BFGoodrich and Toyo for all 4 tires in this size. Their published revolutions per mile work out to 32.3″ under load (below).

Real 285/50R22 tires measure 33.27–33.30″, against 33.22″ from the size code. Every one runs taller than the size code.

Height under load32.3″

Published revs per mile (624–625) mean the tire rolls like a 32.3″ tire on the vehicle. Use this for speedometer calibration.

Weight spread55.6–61.5 lb

The lightest (Toyo Open Country A/T III, LT E) is 5.9 lb lighter per corner than the heaviest (BFGoodrich All-Terrain T/A KO3, LT E).

4 tires in 285/50R22

Sort by the spec you care about.

LoadRevs/miSource
Toyo Open Country A/T IIIAll-terrainLT E · 121/118R33.2755.616.53,195624Spec page
Toyo Open Country R/T TrailRugged-terrainLT E · 121/118S33.2760.716.53,195624Spec page
BFGoodrich All-Terrain T/A KO3All-terrainLT E · 121S33.3061.515.03,195625Spec page
Toyo Open Country R/T ProRugged-terrainLT E · 121/118Q33.3061.517.13,195624Spec page

Is 285/50R22 a 33-inch tire?

≈33″

Yes. The size code works out to 33.22″, and the 4 tires here publish 33.27–33.30″, so people call it a 33.

All 33-inch tire sizes, on every wheel size.

A true 33×12.50R22 is 0.22″ shorter on paper and 1.3″ wider.

Compare with nearby sizes

Differences in overall diameter, calculated from each size code.

SizeDiameter ″vs 285/50R22Difference
285/45R2232.10-1.12″-3.4%
325/40R2232.24-0.98″-3.0%
265/50R2232.43-0.79″-2.4%
305/45R2232.81-0.41″-1.2%
275/50R2232.83-0.39″-1.2%
275/55R2132.91-0.31″-0.9%
33×12.50R2233.00-0.22″-0.7%
355/40R2233.18-0.04″-0.1%
295/50R2233.61+0.39″+1.2%
305/50R2234.01+0.79″+2.4%

How to read 285/50R22

How to read any tire size

LT285/50R22 121S as printed on the tire sidewall, with each part numberedLT285/50R22 121S1234567
How LT285/50R22 121S is printed on the sidewall. It's the most common code among the 4 tires here (1 of them); tires in this size come in other load and speed ratings too.
1LTLight truck

Marks a light truck (LT) tire.

2285Section width

285 mm across the widest point, or 11.22 inches. Every 285 size

350Aspect ratio

A percentage, not a measurement: the sidewall is 50% as tall as the tire is wide, which is 142.5 mm or 5.61 inches.

4RConstruction

Radial construction.

522Wheel diameter

Mounts on a 22-inch wheel. Approved wheel widths run 8.0″ to 10.0″.

6121Load index

Each tire carries up to 3,195 lb (1,450 kg) at its maximum pressure.

7SSpeed rating

Rated for up to 112 mph sustained.

ELoad range

Printed separately as "LOAD RANGE E": a 10-ply rating, inflated up to 80 psi (standard load-range table). The load range E tires here carry up to 3,195 lb each, as published.

SpecificationInchesMetric
Overall diameter33.22844 mm
Section width11.22285 mm
Sidewall height5.61142.5 mm
Circumference104.42,651 mm
Revolutions per mile (calculated, unloaded)607.1377 per km
Revolutions per mile (published by manufacturers)624–625388 per km
Approved wheel width8.0–10.0203–254 mm

Speedometer error after switching to 285/50R22

Your actual speed– mph

Questions about 285/50R22

What is 285/50R22 in inches?

33.22 inches tall, 11.22 inches wide, on a 22-inch wheel. Written in inches, that is roughly 33.2×11.2R22.

How much does a 285/50R22 tire weigh?

Between 55.6 lb and 61.5 lb for the 4 tires listed here. The lightest is the Toyo Open Country A/T III (LT E); the heaviest is the BFGoodrich All-Terrain T/A KO3 (LT E).

What wheel width do I need for 285/50R22?

Manufacturers approve 8.0–10.0″ wide wheels for this size.

How many revolutions per mile does a 285/50R22 make?

Published figures run 624–625 revolutions per mile. The calculated figure is 607.1, but manufacturers measure the tire under load, where it rolls on a smaller radius.

How much taller is 285/50R22 than 355/40R22?

0.04 inches taller on paper (33.22″ vs 33.18″), which raises the axle about 0.02″. Your speedometer will read about 0.1% slow.