TireGeoCalc2026 Toyota Tundra Tire Size by Trim
The 2026 Toyota Tundra comes with 5 factory tire sizes in Toyota's specifications: 245/75R18, 265/70R18, 265/60R20, 285/65R18, 265/50R22. The size depends on the trim and the wheel. The table below lists each size with the trims it is printed for in the source, plus the overall diameter and revolutions per mile calculated from the size code.
| Trim | Factory tire size | Diameter | Revs per mile |
|---|---|---|---|
| SR (18-in. styled-steel wheels) | P245/75R18 | 32.5 in | 621 |
| Grades with 18-in. alloy wheels | P265/70R18 | 32.6 in | 619 |
| Grades with 20-in. alloy wheels | P265/60R20 | 32.5 in | 620 |
| TRD Pro | P285/65R18 | 32.6 in | 619 |
| Capstone | P265/50R22 | 32.4 in | 622 |
Note: The source lists the 18-in. and 20-in. alloy wheel sizes by wheel, not by every grade; check the wheel diameter on your truck.
How to find the size on your own Tundra
Trims, packages and model years can change the factory size. The size that applies to your vehicle is printed on the tire placard on the driver's door jamb and in the owner's manual. The size on the tires now fitted is molded into the sidewall, for example 245/75R18. If the placard and the tires do not match, a previous owner or a shop may have changed the size.
A "P" in front of the size means a P-metric passenger tire. "LT" means a light truck tire, which uses different load and inflation tables. Check the load index and speed rating on the placard before you buy replacements. How to read a tire sidewall explains each part of the code.
How much the factory sizes differ
The shortest factory size here is 265/50R22 (32.4 in) and the tallest is 265/70R18 (32.6 in). The difference in overall diameter is 0.53%. Each factory size goes with its own wheel, so this is not a reason to swap them. It shows how far a speedometer set for one size would be off on the other. Compare these two sizes in the calculator.
Tools and guides for these sizes
- 245/75R18: compare it with another size, find sizes with a similar diameter
- 265/70R18: compare it with another size, find sizes with a similar diameter , 265/70R18 vs 275/65R18, 265/70R18 vs 285/70R17
- 265/60R20: compare it with another size, find sizes with a similar diameter , 265/60R20 in inches
- 285/65R18: compare it with another size, find sizes with a similar diameter , 285/65R18 in inches, 275/70R18 vs 285/65R18, 275/65R18 vs 285/65R18
- 265/50R22: compare it with another size, find sizes with a similar diameter
Changing to a different size? Check the speedometer error and revolutions per mile tools, or convert a size to inches with the tire size converter.
Sources
- 2026 Toyota Tundra Product Information (PDF linked from the newsroom page) (Toyota USA Newsroom), checked 2026-11-11.
Sizes are copied from the manufacturer document above. Trims that the document does not print with a size code are not listed. Diameter and revolutions per mile are nominal values calculated from the size code, not measured values for a specific tire model. See how we calculate.