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285/45R22 in inches

A 285/45R22 tire is 32.1″ tall and 11.2″ wide, and fits a 22″ wheel. In inches it is written 32.1×11.2R22.

Diameter32.10″
Width11.22″
Sidewall5.05″
285/45R22 drawn to scale: 32.10 inch diameter, 5.05 inch sidewall, 22 inch wheel, 11.22 inch tread width22″ wheel5.05″32.10″ overall11.22″ wideSide view
Drawn to scale. Nominal dimensions calculated from the size code.
Manufacturer data

How tall 285/45R22 tires really are

Heights published by BFGoodrich, General, Michelin, Mickey Thompson and Toyo for all 24 tires in this size. Their published revolutions per mile work out to 31.1–31.2″ under load (below).

Real 285/45R22 tires measure 32.09–32.30″, against 32.10″ from the size code. They run both taller and shorter than the size code.

  1. Mickey Thompson Baja Boss A/T32.30″ +0.20″
  2. BFGoodrich Trail-Terrain T/A32.10″ +0.00″
  3. BFGoodrich Trail-Terrain T/A+32.10″ +0.00″
  4. General G-MAX AS0732.10″ +0.00″
  5. General Grabber APT32.10″ +0.00″
  6. General Grabber Arctic X32.10″ +0.00″
  7. General Grabber H/T32.10″ +0.00″
  8. General Grabber HTS6032.10″ +0.00″
  9. Michelin CrossClimate232.10″ +0.00″
  10. Michelin Defender LTX M/S 232.10″ +0.00″
  11. Michelin Pilot Sport 4 SUV32.10″ +0.00″
  12. Michelin Pilot Sport All-Season 432.10″ +0.00″
  13. Michelin Primacy All Season32.10″ +0.00″
  14. BFGoodrich Advantage Control HT32.09″ −0.01″
  15. Michelin X-Ice Snow32.09″ −0.01″
  16. Michelin X-Ice Snow+32.09″ −0.01″
  17. Toyo OPEN COUNTRY Q/T · 232.09–32.09″ −0.01″
  18. Toyo Celsius II32.09″ −0.01″
  19. Toyo Open Country A/T III32.09″ −0.01″
  20. Toyo Open Country R/T Trail32.09″ −0.01″
  21. Toyo Observe G3-Ice32.09″ −0.01″
  22. Toyo Open Country H/T II32.09″ −0.01″
  23. Toyo Proxes ST III32.09″ −0.01″
Each bar runs from the size code's 32.10″ (the orange line) to the model's published height. The track spans 1.0″. Where a model comes in several load ranges, the darker part shows its range of heights; the number after the name is how many versions it comes in.
Height under load31.1–31.2″

Published revs per mile (647–648) mean the tire rolls like a 31.1–31.2″ tire on the vehicle. Use this for speedometer calibration.

Weight spread36.5–49.0 lb

The lightest (General Grabber HTS60, XL) is 12.5 lb lighter per corner than the heaviest (Mickey Thompson Baja Boss A/T, XL).

24 tires in 285/45R22

Sort by the spec you care about.

LoadRevs/miSource
General Grabber HTS60TouringXL · 114H32.1036.510.02,601647Spec page
Michelin CrossClimate2All-seasonXL · 114H32.1036.910.02,601648Spec page
General G-MAX AS07PerformanceXL · 114V32.1037.111.02,601647Spec page
Michelin Pilot Sport 4 SUVPerformanceXL · 114Y32.1037.49.52,601648Spec page
Michelin X-Ice SnowWinterXL · 114T32.0937.910.52,601648Spec page
Michelin Defender LTX M/S 2All-seasonXL · 114H32.1038.111.02,601648Spec page
Michelin X-Ice Snow+WinterXL · 114H32.0938.210.52,601648Spec page
Michelin Pilot Sport All-Season 4PerformanceXL · 114Y32.1038.49.52,601648Spec page
Michelin Primacy All SeasonTouringXL · 114Y32.1038.58.52,601648Spec page
Toyo Observe G3-IceWinterXL · 114T32.0940.312.02,601647Spec page
Toyo Proxes ST IIIPerformanceXL · 114V32.0940.810.12,601647Spec page
Toyo Celsius IITouringXL · 114H32.0940.912.22,601647Spec page
Toyo OPEN COUNTRY Q/TAll-seasonXL · 114H32.0941.012.52,601647Spec page
General Grabber APTAll-terrainXL · 114H32.1041.313.02,601647Spec page
Toyo Open Country H/T IIHighwayXL · 114H32.0941.911.12,601647Spec page
General Grabber H/THighwayXL · 114H32.1042.612.02,601647Spec page
Toyo Open Country R/T TrailRugged-terrainXL · 114T32.0943.013.62,601647Spec page
BFGoodrich Advantage Control HTHighwayXL · 114H32.0943.112.02,601648Spec page
Toyo Open Country A/T IIIAll-terrainXL · 114H32.0944.013.62,601647Spec page
BFGoodrich Trail-Terrain T/A+XL · 114H32.1044.812.52,601648Spec page
BFGoodrich Trail-Terrain T/AAll-terrainXL · 114H32.1045.512.52,601648Spec page
Toyo OPEN COUNTRY Q/TAll-seasonSL · 110H32.0947.412.52,337647Spec page
Mickey Thompson Baja Boss A/TAll-terrainXL · 114T32.3049.016.02,601–Spec page
General Grabber Arctic XWinterSL · 114T32.10–12.02,601647Spec page

Is 285/45R22 a 32-inch tire?

≈32″

Yes. The size code works out to 32.10″, and the 24 tires here publish 32.09–32.30″, so people call it a 32.

All 32-inch tire sizes, on every wheel size.

Compare with nearby sizes

Differences in overall diameter, calculated from each size code.

SizeDiameter ″vs 285/45R22Difference
295/40R2231.29-0.81″-2.5%
305/40R2231.61-0.49″-1.5%
275/45R2231.74-0.35″-1.1%
325/35R2331.96-0.14″-0.4%
285/40R2331.98-0.12″-0.4%
325/40R2232.24+0.14″+0.4%
265/50R2232.43+0.33″+1.0%
305/45R2232.81+0.71″+2.2%
275/50R2232.83+0.73″+2.3%
33×12.50R2233.00+0.90″+2.8%

How to read 285/45R22

How to read any tire size

285/45R22 114H as printed on the tire sidewall, with each part numbered285/45R22 114H123456
How 285/45R22 114H is printed on the sidewall. It's the most common code among the 24 tires here (13 of them); tires in this size come in other load and speed ratings too.
1285Section width

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

245Aspect ratio

A percentage, not a measurement: the sidewall is 45% as tall as the tire is wide, which is 128.3 mm or 5.05 inches.

3RConstruction

Radial construction.

422Wheel diameter

Mounts on a 22-inch wheel. Approved wheel widths run 9.0″ to 10.5″.

5114Load index

Each tire carries up to 2,601 lb (1,180 kg) at its maximum pressure.

6HSpeed rating

Rated for up to 130 mph sustained.

XLExtra load

Printed after the size. In this size the XL tires carry up to 2,601 lb each and the standard-load tires up to 2,601 lb, as published.

SpecificationInchesMetric
Overall diameter32.10815 mm
Section width11.22285 mm
Sidewall height5.05128.3 mm
Circumference100.82,561 mm
Revolutions per mile (calculated, unloaded)628.3390 per km
Revolutions per mile (published by manufacturers)647–648402–403 per km
Approved wheel width9.0–10.5229–267 mm

Speedometer error after switching to 285/45R22

Your actual speed– mph

Questions about 285/45R22

What is 285/45R22 in inches?

32.10 inches tall, 11.22 inches wide, on a 22-inch wheel. Written in inches, that is roughly 32.1×11.2R22.

How much does a 285/45R22 tire weigh?

Between 36.5 lb and 49.0 lb for the 23 tires listed here. The lightest is the General Grabber HTS60 (XL); the heaviest is the Mickey Thompson Baja Boss A/T (XL).

What wheel width do I need for 285/45R22?

Manufacturers approve 9.0–10.5″ wide wheels for this size.

How many revolutions per mile does a 285/45R22 make?

Published figures run 647–648 revolutions per mile. The calculated figure is 628.3, but manufacturers measure the tire under load, where it rolls on a smaller radius.

How much taller is 285/45R22 than 275/45R22?

0.35 inches taller on paper (32.10″ vs 31.74″), which raises the axle about 0.18″. Your speedometer will read about 1.1% slow.