295/40R20 tire size
A 295/40R20 tire is 29.29 inches (744.0 mm) tall, 11.61 in (295 mm) wide and fits a 20-inch wheel. In inch notation it is roughly a 29.3x11.6R20 — a "29-inch" tire.
| Overall diameter | 29.29 in | 744.0 mm |
|---|---|---|
| Section width | 11.61 in | 295 mm |
| Sidewall height | 4.65 in | 118.0 mm |
| Circumference | 92.02 in | 2,337 mm |
| Revolutions | 688.5 per mile | 427.8 per km |
| Rim diameter | 20 in | 508.0 mm |
Compare 295/40R20 with another size
Alternative sizes on the same 20-inch wheel
Sizes in use within ±3 % of the overall diameter of 295/40R20:
Plus and minus sizes for 295/40R20
| Size | Wheel | Diameter | Difference |
|---|---|---|---|
| 285/50R18 | Minus 2 (18 in) | 29.22 in | −0.24% |
| 265/50R19 | Minus 1 (19 in) | 29.43 in | +0.48% |
| 295/45R19 | Minus 1 (19 in) | 29.45 in | +0.55% |
| 285/45R19 | Minus 1 (19 in) | 29.10 in | −0.66% |
| 275/50R19 | Minus 1 (19 in) | 29.83 in | +1.83% |
| 265/40R21 | Plus 1 (21 in) | 29.35 in | +0.19% |
| 305/35R21 | Plus 1 (21 in) | 29.41 in | +0.39% |
| 345/30R21 | Plus 1 (21 in) | 29.15 in | −0.48% |
| 295/35R21 | Plus 1 (21 in) | 29.13 in | −0.55% |
| 265/35R22 | Plus 2 (22 in) | 29.30 in | +0.04% |
| 305/30R22 | Plus 2 (22 in) | 29.20 in | −0.30% |
| 315/30R22 | Plus 2 (22 in) | 29.44 in | +0.51% |
| 275/35R22 | Plus 2 (22 in) | 29.58 in | +0.98% |
Vehicles approved with 295/40R20 tires
Models whose Swiss type approval lists 295/40R20 as a standard or optional size (328 approvals in total). Always check your own vehicle's placard or papers.
- Porsche Macan
- Maserati Levante
- Mercedes-Benz GLC
- Audi Q7
- Bentley Continental
- Maserati Grecale
- Mercedes-Benz ML
- Bentley Conti
- Bentley Flying
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
- 275/30R20 (−9.5%)
- 275/35R20 (−5.8%)
- 275/40R20 (−2.2%)
- 275/45R20 (+1.5%)
- 275/50R20 (+5.2%)
- 285/30R20 (−8.7%)
- 285/35R20 (−4.9%)
- 285/40R20 (−1.1%)
- 285/45R20 (+2.8%)
- 285/50R20 (+6.6%)
- 295/30R20 (−7.9%)
- 295/35R20 (−4.0%)
- 295/45R20 (+4.0%)
- 305/30R20 (−7.1%)
- 305/35R20 (−3.0%)
- 305/40R20 (+1.1%)
- 315/30R20 (−6.3%)
- 315/35R20 (−2.1%)
Reading the 295/40R20 size
- 295 — section width in millimetres (11.61 in).
- 40 — aspect ratio: the sidewall is 40 % of the width, 118.0 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.