275/50R20 tire size
A 275/50R20 tire is 30.83 inches (783.0 mm) tall, 10.83 in (275 mm) wide and fits a 20-inch wheel. In inch notation it is roughly a 30.8x10.8R20 — a "31-inch" tire.
| Overall diameter | 30.83 in | 783.0 mm |
|---|---|---|
| Section width | 10.83 in | 275 mm |
| Sidewall height | 5.41 in | 137.5 mm |
| Circumference | 96.85 in | 2,460 mm |
| Revolutions | 654.2 per mile | 406.5 per km |
| Rim diameter | 20 in | 508.0 mm |
Compare 275/50R20 with another size
Alternative sizes on the same 20-inch wheel
Sizes in use within ±3 % of the overall diameter of 275/50R20:
Plus and minus sizes for 275/50R20
| Size | Wheel | Diameter | Difference |
|---|---|---|---|
| 275/60R18 | Minus 2 (18 in) | 30.99 in | +0.54% |
| 255/65R18 | Minus 2 (18 in) | 31.05 in | +0.73% |
| 245/65R18 | Minus 2 (18 in) | 30.54 in | −0.93% |
| 265/60R18 | Minus 2 (18 in) | 30.52 in | −1.00% |
| 275/55R19 | Minus 1 (19 in) | 30.91 in | +0.27% |
| 255/60R19 | Minus 1 (19 in) | 31.05 in | +0.72% |
| 265/55R19 | Minus 1 (19 in) | 30.48 in | −1.14% |
| 255/55R19 | Minus 1 (19 in) | 30.04 in | −2.54% |
| 275/45R21 | Plus 1 (21 in) | 30.74 in | −0.27% |
| 315/40R21 | Plus 1 (21 in) | 30.92 in | +0.31% |
| 255/50R21 | Plus 1 (21 in) | 31.04 in | +0.69% |
| 305/40R21 | Plus 1 (21 in) | 30.61 in | −0.72% |
| 325/35R22 | Plus 2 (22 in) | 30.96 in | +0.42% |
| 315/35R22 | Plus 2 (22 in) | 30.68 in | −0.47% |
| 285/40R22 | Plus 2 (22 in) | 30.98 in | +0.49% |
| 275/40R22 | Plus 2 (22 in) | 30.66 in | −0.54% |
| 285/35R23 | Plus 3 (23 in) | 30.85 in | +0.09% |
| 325/30R23 | Plus 3 (23 in) | 30.68 in | −0.49% |
| 255/40R23 | Plus 3 (23 in) | 31.03 in | +0.66% |
| 275/35R23 | Plus 3 (23 in) | 30.58 in | −0.80% |
Vehicles approved with 275/50R20 tires
Models whose Swiss type approval lists 275/50R20 as a standard or optional size (749 approvals in total). Always check your own vehicle's placard or papers.
- Mercedes-Benz GLE
- Audi Q8
- BMW X7
- Mercedes-Benz G-Class
- Bentley Bentayga
- Mercedes-Benz GL
- Mercedes-Benz GLS
- Hyundai Ioniq
- Kia EV9
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 20-inch sizes
- 255/40R20 (−9.1%)
- 255/45R20 (−5.8%)
- 255/50R20 (−2.6%)
- 255/55R20 (+0.7%)
- 255/60R20 (+4.0%)
- 265/40R20 (−8.0%)
- 265/45R20 (−4.7%)
- 265/50R20 (−1.3%)
- 265/60R20 (+5.5%)
- 275/40R20 (−7.0%)
- 275/45R20 (−3.5%)
- 275/55R20 (+3.5%)
- 275/60R20 (+7.0%)
- 285/40R20 (−6.0%)
- 285/45R20 (−2.4%)
- 285/50R20 (+1.3%)
- 285/55R20 (+4.9%)
- 285/60R20 (+8.6%)
- 295/40R20 (−5.0%)
- 295/45R20 (−1.2%)
Reading the 275/50R20 size
- 275 — section width in millimetres (10.83 in).
- 50 — aspect ratio: the sidewall is 50 % of the width, 137.5 mm.
- R — radial construction (ZR on the sidewall means a high-speed rated radial; the dimensions are the same).
- 20 — fits a 20-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.