275/40R22 tire size
A 275/40R22 tire is 30.66 inches (778.8 mm) tall, 10.83 in (275 mm) wide and fits a 22-inch wheel. In inch notation it is roughly a 30.7x10.8R22 — a "31-inch" tire.
| Overall diameter | 30.66 in | 778.8 mm |
|---|---|---|
| Section width | 10.83 in | 275 mm |
| Sidewall height | 4.33 in | 110.0 mm |
| Circumference | 96.33 in | 2,447 mm |
| Revolutions | 657.8 per mile | 408.7 per km |
| Rim diameter | 22 in | 558.8 mm |
Compare 275/40R22 with another size
Alternative sizes on the same 22-inch wheel
Sizes in use within ±3 % of the overall diameter of 275/40R22:
Plus and minus sizes for 275/40R22
| Size | Wheel | Diameter | Difference |
|---|---|---|---|
| 275/50R20 | Minus 2 (20 in) | 30.83 in | +0.54% |
| 295/45R20 | Minus 2 (20 in) | 30.45 in | −0.68% |
| 265/50R20 | Minus 2 (20 in) | 30.43 in | −0.74% |
| 255/55R20 | Minus 2 (20 in) | 31.04 in | +1.25% |
| 305/40R21 | Minus 1 (21 in) | 30.61 in | −0.18% |
| 275/45R21 | Minus 1 (21 in) | 30.74 in | +0.27% |
| 315/40R21 | Minus 1 (21 in) | 30.92 in | +0.85% |
| 265/45R21 | Minus 1 (21 in) | 30.39 in | −0.89% |
| 325/30R23 | Plus 1 (23 in) | 30.68 in | +0.05% |
| 275/35R23 | Plus 1 (23 in) | 30.58 in | −0.27% |
| 285/35R23 | Plus 1 (23 in) | 30.85 in | +0.63% |
| 315/30R23 | Plus 1 (23 in) | 30.44 in | −0.72% |
Vehicles approved with 275/40R22 tires
Models whose Swiss type approval lists 275/40R22 as a standard or optional size (681 approvals in total). Always check your own vehicle's placard or papers.
Source: Swiss Federal Roads Office (FEDRO/ASTRA), open government data. Original data (downloaded 2026-09-29). Data processed by us; errors in processing are ours, not the publisher's.
Nearby 22-inch sizes
Reading the 275/40R22 size
- 275 — section width in millimetres (10.83 in).
- 40 — aspect ratio: the sidewall is 40 % of the width, 110.0 mm.
- R — radial construction (ZR on the sidewall means a high-speed rated radial; the dimensions are the same).
- 22 — fits a 22-inch diameter wheel.
The load index and speed rating (for example 91V) follow the size on the sidewall. They must meet at least the values on your vehicle's tire placard.