Flotation tire size
37x12.50R17 in metric
A 37x12.50R17 is a flotation size: 37.0 inches tall and 12.5 in wide, for a 17-inch wheel (940 × 318 mm). Makers publish 36.54–37 in for real 37x12.50R17 tires (5 makers).
Compare 37x12.50R17 with other sizes
Set up for: comparing 37x12.50R17 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 37x12.50R17 tires: published diameters
Figures from the makers' own data books. They differ from the 37.0 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 | 36.7–37 in | 573–577 | 8.5–11 in | 3 |
| Goodyear | 36.8 in | 566 | 8–10.5 in | 1 |
| Hankook | 36.6 in | 572 | 8–10.5 in | 1 |
| Nitto | 36.54–36.85 in | — | 8–10.5 in | 3 |
| Toyo | 36.8 in | 565 | 8.5–11 in | 1 |
Equivalent sizes on other wheels
Sizes that appear in the maker data books with a diameter within 3% of 37x12.50R17. Same diameter is only one part of fitting a different size.
| Wheel | Real sizes within 3% (closest first) |
|---|---|
| 15-inch | 37x14.50R15 , 38x15.50R15 |
| 16-inch | 385/70R16 |
| 17-inch | 37x11.50R17 , 37x13.50R17 , 38x12.50R17 |
| 18-inch | 37x11.50R18 , 37x12.50R18 , 37x13.50R18 |
| 20-inch | 37x11.50R20 , 37x12.50R20 , 37x13.50R20 |
| 22-inch | 37x12.50R22 , 37x13.50R22 , 38x13.50R22 |
Popular comparisons with 37x12.50R17
FAQ
How tall is a 37x12.50R17 tire?
37.0 inches (940 mm) calculated from the size code. Makers publish 36.54–37 in for real tires in this size; the difference comes from tread design and construction.
Is 37x12.50R17 a 37-inch tire?
It is about 37.0 in tall nominally, so it is close to 37 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 37x12.50R17?
Real sizes within 3% of its diameter include 385/70R16 (+0.6%), 37x11.50R18 (±0.0%) and 37x11.50R20 (±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 37x12.50R17 make?
About 545 calculated from its unloaded diameter. Makers publish 565–577 revs per mile, measured under load (a loaded tire rolls on a slightly smaller radius), which is why published figures are higher.
Open 37x12.50R17 in the converter · Tire size chart · 37-inch tires