255/45R19 tire size
A 255/45R19 tire is 28.04 inches (712.1 mm) tall, 10.04 in (255 mm) wide and fits a 19-inch wheel. In inch notation it is roughly a 28.0x10.0R19 — a "28-inch" tire.
| Overall diameter | 28.04 in | 712.1 mm |
|---|---|---|
| Section width | 10.04 in | 255 mm |
| Sidewall height | 4.52 in | 114.7 mm |
| Circumference | 88.08 in | 2,237 mm |
| Revolutions | 719.4 per mile | 447.0 per km |
| Rim diameter | 19 in | 482.6 mm |
Compare 255/45R19 with another size
Alternative sizes on the same 19-inch wheel
Sizes in use within ±3 % of the overall diameter of 255/45R19:
Plus and minus sizes for 255/45R19
| Size | Wheel | Diameter | Difference |
|---|---|---|---|
| 255/55R17 | Minus 2 (17 in) | 28.04 in | +0.03% |
| 235/60R17 | Minus 2 (17 in) | 28.10 in | +0.24% |
| 225/60R17 | Minus 2 (17 in) | 27.63 in | −1.45% |
| 245/55R17 | Minus 2 (17 in) | 27.61 in | −1.52% |
| 255/50R18 | Minus 1 (18 in) | 28.04 in | +0.01% |
| 285/45R18 | Minus 1 (18 in) | 28.10 in | +0.22% |
| 235/55R18 | Minus 1 (18 in) | 28.18 in | +0.51% |
| 275/45R18 | Minus 1 (18 in) | 27.74 in | −1.04% |
| 255/40R20 | Plus 1 (20 in) | 28.03 in | −0.01% |
| 295/35R20 | Plus 1 (20 in) | 28.13 in | +0.34% |
| 285/35R20 | Plus 1 (20 in) | 27.85 in | −0.65% |
| 235/45R20 | Plus 1 (20 in) | 28.33 in | +1.04% |
| 255/35R21 | Plus 2 (21 in) | 28.03 in | −0.03% |
| 295/30R21 | Plus 2 (21 in) | 27.97 in | −0.24% |
| 305/30R21 | Plus 2 (21 in) | 28.20 in | +0.60% |
| 265/35R21 | Plus 2 (21 in) | 28.30 in | +0.95% |
| 285/30R22 | Plus 3 (22 in) | 28.73 in | +2.49% |
Vehicles approved with 255/45R19 tires
Models whose Swiss type approval lists 255/45R19 as a standard or optional size (1,884 approvals in total). Always check your own vehicle's placard or papers.
- Volkswagen Tiguan
- Audi A8
- Audi Q3
- Mercedes-Benz S-Class
- Porsche Panamera
- Mercedes-Benz GLK
- Audi A6
- Tesla Model Y
- SEAT Tarraco
- Audi S8
- Volvo XC40
- Bentley Arnage
- Volvo C40
- Volvo EX40
- BYD Seal
- Mercedes-Benz EQE
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
- 235/35R19 (−9.1%)
- 235/40R19 (−5.8%)
- 235/45R19 (−2.5%)
- 235/50R19 (+0.8%)
- 235/55R19 (+4.1%)
- 245/35R19 (−8.1%)
- 245/40R19 (−4.7%)
- 245/45R19 (−1.3%)
- 245/50R19 (+2.2%)
- 255/35R19 (−7.2%)
- 255/40R19 (−3.6%)
- 255/50R19 (+3.6%)
- 255/55R19 (+7.2%)
- 265/35R19 (−6.2%)
- 265/40R19 (−2.5%)
- 265/45R19 (+1.3%)
- 265/50R19 (+5.0%)
- 265/55R19 (+8.7%)
- 275/35R19 (−5.2%)
- 275/40R19 (−1.3%)
- 275/45R19 (+2.5%)
- 275/50R19 (+6.4%)
- 275/55R19 (+10.3%)
Reading the 255/45R19 size
- 255 — section width in millimetres (10.04 in).
- 45 — aspect ratio: the sidewall is 45 % of the width, 114.7 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.