Flotation tire size
35x12.50R18 in metric
A 35x12.50R18 is a flotation size: 35.0 inches tall and 12.5 in wide, for a 18-inch wheel (889 × 318 mm). The closest metric sizes on the same 18-inch wheel are 285/75R18 (34.8 in), 305/70R18 (34.8 in) and 325/65R18 (34.6 in). Makers publish 34.5–35.1 in for real 35x12.50R18 tires (5 makers).
Compare 35x12.50R18 with other sizes
Set up for: comparing 35x12.50R18 with a size you're considering · Different situation?
Your current size
e.g. 265/70R17, 2657017 or 33x12.50R20
Where do I find my size?
It's on the tire sidewall, e.g. P265/70R17 115T, and on the tire placard sticker on the driver's door jamb (also in the owner's manual). The placard shows the size the vehicle came with; the sidewall shows what is fitted now. If they differ, use the placard as your starting point. Digits are enough here: 2657017 or 33125020.
Size you're considering
Real 35x12.50R18 tires: published diameters
Figures from the makers' own data books. They differ from the 35.0 in calculated figure because each tread design and construction measures slightly differently.
| Maker (data book) | Published diameter | Revs per mile | Approved wheel width | Listings |
|---|---|---|---|---|
| Falken | 34.7–35.1 in | 601–607 | 8.5–11 in | 3 |
| Goodyear | 34.8 in | 598 | 8.5–11 in | 1 |
| Hankook | 34.5 in | 605–606 | 8.5–11 in | 2 |
| Nitto | 34.53–35.04 in | — | 8.5–11 in | 3 |
| Toyo | 34.5–35 in | 593–602 | 8.5–11 in | 3 |
Equivalent sizes on other wheels
Sizes that appear in the maker data books with a diameter within 3% of 35x12.50R18. Same diameter is only one part of fitting a different size.
| Wheel | Real sizes within 3% (closest first) |
|---|---|
| 15-inch | 35x12.50R15 , 35x13.50R15 , 35x14.50R15 |
| 16-inch | 315/75R16 , 35x11.50R16 |
| 17-inch | 315/70R17 , 35x11.50R17 , 35x12.50R17 |
| 18-inch | 285/75R18 , 305/70R18 , 325/65R18 |
| 20-inch | 295/65R20 , 315/60R20 , 325/60R20 |
| 22-inch | 325/50R22 , 305/55R22 , 295/55R22 |
Popular comparisons with 35x12.50R18
FAQ
How tall is a 35x12.50R18 tire?
35.0 inches (889 mm) calculated from the size code. Makers publish 34.5–35.1 in for real tires in this size; the difference comes from tread design and construction.
Is 35x12.50R18 a 35-inch tire?
It is about 35.0 in tall nominally, so it is close to 35 inches. Real tires in a size vary slightly by model; check the maker's spec sheet for the exact tire.
What sizes are equivalent to 35x12.50R18?
Real sizes within 3% of its diameter include 35x11.50R16 (±0.0%), 35x11.50R17 (±0.0%) and 35x11.50R20 (±0.0%). Equal diameter alone doesn't make a size suitable: wheel width, offset, clearance and load rating all matter.
How many revolutions per mile does a 35x12.50R18 make?
About 576 calculated from its unloaded diameter. Makers publish 593–607 revs per mile, measured under load (a loaded tire rolls on a slightly smaller radius), which is why published figures are higher.
Open 35x12.50R18 in the converter · Tire size chart · 35-inch tires