Metric tire size
275/60R20 tire size
A 275/60R20 tire is 33.0 inches (838 mm) tall and 10.8 in wide, for a 20-inch wheel, with a 6.5 in sidewall. That is the nominal size worked out from the code. Makers publish 32.8–33.23 in for real 275/60R20 tires (5 makers).
Compare 275/60R20 with other sizes
Set up for: comparing 275/60R20 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 275/60R20 tires: published diameters
Figures from the makers' own data books. They differ from the 33.0 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 | 33–33.2 in | 627–642 | 7.5–9.5 in | 6 |
| Goodyear | 33–33.2 in | 626–634 | 7.5–9.5 in | 4 |
| Hankook | 32.8–33.1 in | 629–635 | 7.5–9.5 in | 5 |
| Nitto | 32.99–33.23 in | — | 7.5–9.5 in | 3 |
| Toyo | 33 in | 630 | 7.5–9.5 in | 1 |
Equivalent sizes on other wheels
Sizes that appear in the maker data books with a diameter within 3% of 275/60R20. Same diameter is only one part of fitting a different size.
| Wheel | Real sizes within 3% (closest first) |
|---|---|
| 15-inch | 33x10.50R15 , 33x12.50R15 , 33x13.50R15 |
| 16-inch | 255/85R16 , 285/75R16 , 305/70R16 |
| 17-inch | 33x11.50R17 , 33x12.50R17 , 255/80R17 |
| 18-inch | 33x11.50R18 , 33x12.50R18 , 295/65R18 |
| 20-inch | 33x11.50R20 , 33x12.50R20 , 325/50R20 |
| 22-inch | 33x12.50R22 , 275/50R22 , 315/45R22 |
Popular comparisons with 275/60R20
FAQ
How tall is a 275/60R20 tire?
33.0 inches (838 mm) calculated from the size code. Makers publish 32.8–33.23 in for real tires in this size; the difference comes from tread design and construction.
How do you work out the 275/60R20 diameter?
Sidewall = 275 mm × 60% = 165.0 mm. Diameter = 20 in wheel + 2 × 165.0 mm ÷ 25.4 = 32.99 in.
Is 275/60R20 a 33-inch tire?
It is about 33.0 in tall nominally, so it is close to 33 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 275/60R20?
Real sizes within 3% of its diameter include 255/85R16 (+0.2%), 33x11.50R17 (±0.0%) and 33x11.50R18 (±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 275/60R20 make?
About 611 calculated from its unloaded diameter. Makers publish 626–642 revs per mile, measured under load (a loaded tire rolls on a slightly smaller radius), which is why published figures are higher.
Open 275/60R20 in the converter · Tire size chart · 33-inch tires