275/40R19 tire size
A 275/40R19 tire is 27.66 inches (702.6 mm) tall, 10.83 in (275 mm) wide and fits a 19-inch wheel. In inch notation it is roughly a 27.7x10.8R19 — a "28-inch" tire.
| Overall diameter | 27.66 in | 702.6 mm |
|---|---|---|
| Section width | 10.83 in | 275 mm |
| Sidewall height | 4.33 in | 110.0 mm |
| Circumference | 86.90 in | 2,207 mm |
| Revolutions | 729.1 per mile | 453.0 per km |
| Rim diameter | 19 in | 482.6 mm |
Compare 275/40R19 with another size
Alternative sizes on the same 19-inch wheel
Sizes in use within ±3 % of the overall diameter of 275/40R19:
Plus and minus sizes for 275/40R19
| Size | Wheel | Diameter | Difference |
|---|---|---|---|
| 245/55R17 | Minus 2 (17 in) | 27.61 in | −0.19% |
| 255/55R17 | Minus 2 (17 in) | 28.04 in | +1.38% |
| 245/50R18 | Minus 1 (18 in) | 27.65 in | −0.06% |
| 275/45R18 | Minus 1 (18 in) | 27.74 in | +0.30% |
| 265/45R18 | Minus 1 (18 in) | 27.39 in | −0.98% |
| 255/50R18 | Minus 1 (18 in) | 28.04 in | +1.37% |
| 325/30R20 | Plus 1 (20 in) | 27.68 in | +0.06% |
| 245/40R20 | Plus 1 (20 in) | 27.72 in | +0.20% |
| 275/35R20 | Plus 1 (20 in) | 27.58 in | −0.30% |
| 285/35R20 | Plus 1 (20 in) | 27.85 in | +0.70% |
| 285/30R21 | Plus 2 (21 in) | 27.73 in | +0.26% |
| 245/35R21 | Plus 2 (21 in) | 27.75 in | +0.33% |
| 275/30R21 | Plus 2 (21 in) | 27.50 in | −0.60% |
| 295/30R21 | Plus 2 (21 in) | 27.97 in | +1.11% |
Vehicles approved with 275/40R19 tires
Models whose Swiss type approval lists 275/40R19 as a standard or optional size (1,579 approvals in total). Always check your own vehicle's placard or papers.
- BMW 7 Series
- Mercedes-Benz S-Class
- BMW 6 Series
- BMW 5 Series
- BMW M8
- Ford Mustang
- Maserati Ghibli
- BMW M5
- Maserati Quattroporte
- Mercedes-Benz CL
- Jaguar XJ
- BMW X3
- BMW X4
- Cadillac STS
- Genesis G80
- MG IM5
- Bentley Continental
- Bentley Conti
- Bentley Cont
- BMW ActiveHybrid
- Cadillac CTS
- MG Cyberster
- Maserati Levante
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 19-inch sizes
- 255/30R19 (−9.5%)
- 255/35R19 (−5.9%)
- 255/40R19 (−2.3%)
- 255/45R19 (+1.4%)
- 255/50R19 (+5.0%)
- 265/30R19 (−8.7%)
- 265/35R19 (−4.9%)
- 265/40R19 (−1.1%)
- 265/45R19 (+2.6%)
- 265/50R19 (+6.4%)
- 275/30R19 (−7.8%)
- 275/35R19 (−3.9%)
- 275/45R19 (+3.9%)
- 275/50R19 (+7.8%)
- 285/30R19 (−7.0%)
- 285/35R19 (−2.9%)
- 285/40R19 (+1.1%)
- 285/45R19 (+5.2%)
- 295/30R19 (−6.1%)
- 295/35R19 (−1.9%)
- 295/40R19 (+2.3%)
- 295/45R19 (+6.5%)
Reading the 275/40R19 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).
- 19 — fits a 19-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.