A tire size does not pick one rim. It picks a rim-width window. A 275 section commonly sits on an 8.0 to 9.5 inch wheel. Bolt pattern, offset and centre bore are vehicle questions this site does not answer. Diameter is a tire question; the calculator handles that.
Typical approved windows
These ranges are the usual industry windows for radial tires. A manufacturer can publish a tighter one. When the sidewall and this table disagree, the sidewall wins.
| Section width | Typical rim window |
|---|---|
| 215 to 225 mm | 6.0 to 8.0 in |
| 235 to 245 mm | 7.0 to 8.5 in |
| 255 to 265 mm | 7.5 to 9.5 in |
| 275 mm | 8.0 to 9.5 in |
| 285 mm | 8.0 to 10.0 in |
| 305 to 315 mm | 9.0 to 11.0 in |
| 12.50 in flotation | 8.5 to 11.0 in |
Width vs diameter
The last number on a metric stamp is the rim diameter. That one is exact: a 20-inch tire mounts on a 20-inch wheel. The window above is rim width, the measurement between the flanges. Mixing those two words is how a "20 inch rim" conversation skips the part that actually pinches the bead.
Plus sizing often pairs a wider rim with a wider tire. That is a choice inside the window, not a reason to leave it. The plus sizing page is the diameter half of that choice.
We do not have a fitment dataset and will not invent one. A 275 that fits the width window can still not bolt to the hub. Take the window to a shop with the vehicle in the bay.