265/50R20 tire size
A 265/50R20 tire is 30.43 inches (773.0 mm) tall, 10.43 in (265 mm) wide and fits a 20-inch wheel. In inch notation it is roughly a 30.4x10.4R20 — a "30-inch" tire.
| Overall diameter | 30.43 in | 773.0 mm |
|---|---|---|
| Section width | 10.43 in | 265 mm |
| Sidewall height | 5.22 in | 132.5 mm |
| Circumference | 95.61 in | 2,428 mm |
| Revolutions | 662.7 per mile | 411.8 per km |
| Rim diameter | 20 in | 508.0 mm |
Compare 265/50R20 with another size
Alternative sizes on the same 20-inch wheel
Sizes in use within ±3 % of the overall diameter of 265/50R20:
Plus and minus sizes for 265/50R20
| Size | Wheel | Diameter | Difference |
|---|---|---|---|
| 265/60R18 | Minus 2 (18 in) | 30.52 in | +0.28% |
| 285/55R18 | Minus 2 (18 in) | 30.34 in | −0.30% |
| 245/65R18 | Minus 2 (18 in) | 30.54 in | +0.35% |
| 255/60R18 | Minus 2 (18 in) | 30.05 in | −1.27% |
| 265/55R19 | Minus 1 (19 in) | 30.48 in | +0.14% |
| 235/60R19 | Minus 1 (19 in) | 30.10 in | −1.09% |
| 255/55R19 | Minus 1 (19 in) | 30.04 in | −1.28% |
| 275/55R19 | Minus 1 (19 in) | 30.91 in | +1.57% |
| 265/45R21 | Plus 1 (21 in) | 30.39 in | −0.14% |
| 295/40R21 | Plus 1 (21 in) | 30.29 in | −0.47% |
| 305/40R21 | Plus 1 (21 in) | 30.61 in | +0.57% |
| 235/50R21 | Plus 1 (21 in) | 30.25 in | −0.60% |
| 265/40R22 | Plus 2 (22 in) | 30.35 in | −0.28% |
| 275/40R22 | Plus 2 (22 in) | 30.66 in | +0.75% |
| 315/35R22 | Plus 2 (22 in) | 30.68 in | +0.82% |
| 295/35R22 | Plus 2 (22 in) | 30.13 in | −1.00% |
| 315/30R23 | Plus 3 (23 in) | 30.44 in | +0.03% |
| 275/35R23 | Plus 3 (23 in) | 30.58 in | +0.48% |
| 285/35R23 | Plus 3 (23 in) | 30.85 in | +1.38% |
| 255/40R23 | Plus 3 (23 in) | 31.03 in | +1.97% |
Vehicles approved with 265/50R20 tires
Models whose Swiss type approval lists 265/50R20 as a standard or optional size (627 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 20-inch sizes
- 245/40R20 (−8.9%)
- 245/45R20 (−5.8%)
- 245/50R20 (−2.6%)
- 255/40R20 (−7.9%)
- 255/45R20 (−4.6%)
- 255/50R20 (−1.3%)
- 255/55R20 (+2.0%)
- 255/60R20 (+5.3%)
- 265/40R20 (−6.9%)
- 265/45R20 (−3.4%)
- 265/60R20 (+6.9%)
- 275/40R20 (−5.8%)
- 275/45R20 (−2.3%)
- 275/50R20 (+1.3%)
- 275/55R20 (+4.9%)
- 275/60R20 (+8.4%)
- 285/40R20 (−4.8%)
- 285/45R20 (−1.1%)
- 285/50R20 (+2.6%)
- 285/55R20 (+6.3%)
- 285/60R20 (+10.0%)
Reading the 265/50R20 size
- 265 — section width in millimetres (10.43 in).
- 50 — aspect ratio: the sidewall is 50 % of the width, 132.5 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.