tireheight.com

225/75R16 in inches

A 225/75R16 tire is 29.3″ tall and 8.9″ wide, and fits a 16″ wheel. In inches it is written 29.3×8.9R16.

Diameter29.29″
Width8.86″
Sidewall6.64″
225/75R16 drawn to scale: 29.29 inch diameter, 6.64 inch sidewall, 16 inch wheel, 8.86 inch tread width16″ wheel6.64″29.29″ overall8.86″ wideSide view
Drawn to scale. Nominal dimensions calculated from the size code.
Manufacturer data

How tall 225/75R16 tires really are

Heights published by BFGoodrich, General, Michelin and Toyo for all 23 tires in this size. Their published revolutions per mile work out to 28.4–28.6″ under load (below).

Real 225/75R16 tires measure 29.29–29.45″, against 29.29″ from the size code. They run both taller and shorter than the size code.

  1. Toyo M-5529.45″ +0.16″
  2. Toyo Open Country WLT129.37″ +0.08″
  3. BFGoodrich All-Terrain T/A KO329.30″ +0.01″
  4. BFGoodrich Trail-Terrain T/A29.30″ +0.01″
  5. BFGoodrich Trail-Terrain T/A+29.30″ +0.01″
  6. General Grabber APT29.30″ +0.01″
  7. General Grabber H/T29.30″ +0.01″
  8. General Grabber HD · 229.30″ +0.01″
  9. General Grabber HTS29.30″ +0.01″
  10. General Grabber HTS6029.30″ +0.01″
  11. Michelin Agilis CrossClimate 2 · 229.30″ +0.01″
  12. Toyo Celsius Cargo · 229.29″ +0.00″
  13. Toyo M165 · 229.29″ +0.00″
  14. Toyo Observe G3-Ice29.29″ +0.00″
  15. Toyo Open Country A/T III · 229.29″ +0.00″
  16. Toyo Open Country C/T29.29″ +0.00″
  17. Toyo Open Country H/T II29.29″ +0.00″
  18. BFGoodrich HD Pro T/A29.29″ +0.00″
Each bar runs from the size code's 29.29″ (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 load28.4–28.6″

Published revs per mile (705–710) mean the tire rolls like a 28.4–28.6″ tire on the vehicle. Use this for speedometer calibration.

Weight spread28.8–45.2 lb

The lightest (General Grabber H/T, SL) is 16.4 lb lighter per corner than the heaviest (Toyo Open Country C/T, LT E).

23 tires in 225/75R16

Sort by the spec you care about.

LoadRevs/miSource
General Grabber H/THighwaySL · 104S29.3028.812.01,984709Spec page
General Grabber HTS60TouringSL · 104S29.3028.812.01,984709Spec page
Toyo Open Country A/T IIIAll-terrainSL · 104S29.2929.912.81,984709Spec page
Toyo Observe G3-IceWinterSL · 104H29.2932.012.51,984709Spec page
BFGoodrich Trail-Terrain T/AAll-terrainXL · 108T29.3034.412.52,205710Spec page
Toyo Celsius CargoLT E · 121/120R29.2935.813.13,195709Spec page
BFGoodrich HD Pro T/ACommercialLT E · 115/112R29.2936.513.02,680710Spec page
General Grabber HDCommercialLT E · 121R29.3037.212.03,195709Spec page
General Grabber HDCommercialLT E · 115R29.3037.814.02,680709Spec page
Toyo Open Country H/T IIHighwayLT E · 115/112S29.2938.114.12,680709Spec page
Toyo Open Country A/T IIIAll-terrainLT E · 115/112Q29.2938.215.92,680709Spec page
General Grabber HTSTouringLT E · 115S29.3038.413.02,680709Spec page
Toyo Celsius CargoLT E · 115/112R29.2938.514.12,680709Spec page
Toyo Open Country WLT1WinterLT E · 115/112Q29.3739.016.12,680707Spec page
Michelin Agilis CrossClimate 2CommercialSL · 121/120R29.3039.414.03,195710Spec page
Toyo M165CommercialLT E · 115/112R29.2939.913.62,680709Spec page
BFGoodrich Trail-Terrain T/A+XL · 108T29.3040.112.52,205710Spec page
Toyo M-55CommercialLT E · 115/112Q29.4540.117.02,680705Spec page
Toyo M165CommercialLT E · 121/120R29.2940.613.63,195709Spec page
Michelin Agilis CrossClimate 2CommercialLT E · 115/112R29.3041.914.02,680710Spec page
General Grabber APTAll-terrainLT E · 115R29.3042.016.02,680709Spec page
BFGoodrich All-Terrain T/A KO3All-terrainLT E · 115S29.3043.515.02,680710Spec page
Toyo Open Country C/TCommercialLT E · 115/112Q29.2945.217.02,680709Spec page

Is 225/75R16 a 29-inch tire?

≈29″

Yes. The size code works out to 29.29″, and the 23 tires here publish 29.29–29.45″, so people call it a 29.

All 29-inch tire sizes, on every wheel size.

Compare with nearby sizes

Differences in overall diameter, calculated from each size code.

SizeDiameter ″vs 225/75R16Difference
225/70R1628.40-0.89″-3.0%
235/70R1628.95-0.33″-1.1%
255/60R1729.05-0.24″-0.8%
255/65R1629.05-0.24″-0.8%
255/70R1529.06-0.23″-0.8%
245/70R1629.50+0.22″+0.7%
265/60R1729.52+0.23″+0.8%
245/65R1729.54+0.25″+0.9%
235/75R1629.88+0.59″+2.0%
255/70R1630.06+0.77″+2.6%

How to read 225/75R16

How to read any tire size

LT225/75R16 115/112R as printed on the tire sidewall, with each part numberedLT225/75R16 115/112R1234567
How LT225/75R16 115/112R is printed on the sidewall. It's the most common code among the 23 tires here (4 of them); tires in this size come in other load and speed ratings too.
1LTLight truck

Marks a light truck (LT) tire.

2225Section width

225 mm across the widest point, or 8.86 inches. Every 225 size

375Aspect ratio

A percentage, not a measurement: the sidewall is 75% as tall as the tire is wide, which is 168.8 mm or 6.64 inches.

4RConstruction

Radial construction.

516Wheel diameter

Mounts on a 16-inch wheel. Approved wheel widths run 6.0″ to 7.5″.

6115/112Load index

Each tire carries up to 2,679 lb (1,215 kg) on its own, or 2,469 lb (1,120 kg) each when paired on a dual rear axle.

7RSpeed rating

Rated for up to 106 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 diameter29.29744 mm
Section width8.86225 mm
Sidewall height6.64168.8 mm
Circumference92.02,337 mm
Revolutions per mile (calculated, unloaded)688.6428 per km
Revolutions per mile (published by manufacturers)705–710438–441 per km
Approved wheel width6.0–7.5152–191 mm

Speedometer error after switching to 225/75R16

Your actual speed– mph

Questions about 225/75R16

What is 225/75R16 in inches?

29.29 inches tall, 8.86 inches wide, on a 16-inch wheel. Written in inches, that is roughly 29.3×8.9R16.

How much does a 225/75R16 tire weigh?

Between 28.8 lb and 45.2 lb for the 23 tires listed here. The lightest is the General Grabber H/T (SL); the heaviest is the Toyo Open Country C/T (LT E).

What wheel width do I need for 225/75R16?

Manufacturers approve 6.0–7.5″ wide wheels for this size.

How many revolutions per mile does a 225/75R16 make?

Published figures run 705–710 revolutions per mile. The calculated figure is 688.6, but manufacturers measure the tire under load, where it rolls on a smaller radius.

What is the difference between P225/75R16 and LT225/75R16?

Passenger tires (7 here) are built for passenger loads, with max loads of 1984–3195 lb. Light-truck tires (16 here) come in heavier load ranges with max loads of 2680–3195 lb, and are usually heavier with deeper tread.

How much taller is 225/75R16 than 255/65R16?

0.24 inches taller on paper (29.29″ vs 29.05″), which raises the axle about 0.12″. Your speedometer will read about 0.8% slow.