215/55R18 tire size
A 215/55R18 tire is 27.31 inches (693.7 mm) tall, 8.46 in (215 mm) wide and fits a 18-inch wheel. In inch notation it is roughly a 27.3x8.5R18.
| Overall diameter | 27.31 in | 693.7 mm |
|---|---|---|
| Section width | 8.46 in | 215 mm |
| Sidewall height | 4.66 in | 118.3 mm |
| Circumference | 85.80 in | 2,179 mm |
| Revolutions | 738.5 per mile | 458.9 per km |
| Rim diameter | 18 in | 457.2 mm |
Compare 215/55R18 with another size
Alternative sizes on the same 18-inch wheel
Sizes in use within ±3 % of the overall diameter of 215/55R18:
Plus and minus sizes for 215/55R18
| Size | Wheel | Diameter | Difference |
|---|---|---|---|
| 205/70R16 | Minus 2 (16 in) | 27.30 in | −0.04% |
| 225/65R16 | Minus 2 (16 in) | 27.52 in | +0.75% |
| 235/60R16 | Minus 2 (16 in) | 27.10 in | −0.76% |
| 245/60R16 | Minus 2 (16 in) | 27.57 in | +0.97% |
| 235/55R17 | Minus 1 (17 in) | 27.18 in | −0.49% |
| 215/60R17 | Minus 1 (17 in) | 27.16 in | −0.56% |
| 205/65R17 | Minus 1 (17 in) | 27.49 in | +0.66% |
| 245/55R17 | Minus 1 (17 in) | 27.61 in | +1.10% |
| 235/45R19 | Plus 1 (19 in) | 27.33 in | +0.06% |
| 265/40R19 | Plus 1 (19 in) | 27.35 in | +0.13% |
| 195/55R19 | Plus 1 (19 in) | 27.44 in | +0.49% |
| 215/50R19 | Plus 1 (19 in) | 27.46 in | +0.56% |
| 265/35R20 | Plus 2 (20 in) | 27.30 in | −0.03% |
| 235/40R20 | Plus 2 (20 in) | 27.40 in | +0.33% |
| 225/40R20 | Plus 2 (20 in) | 27.09 in | −0.82% |
| 255/35R20 | Plus 2 (20 in) | 27.03 in | −1.04% |
| 265/30R21 | Plus 3 (21 in) | 27.26 in | −0.19% |
| 245/35R21 | Plus 3 (21 in) | 27.75 in | +1.61% |
| 255/35R21 | Plus 3 (21 in) | 28.03 in | +2.62% |
Vehicles approved with 215/55R18 tires
Models whose Swiss type approval lists 215/55R18 as a standard or optional size (1,733 approvals in total). Always check your own vehicle's placard or papers.
- Nissan Qashqai
- DS DS3
- Peugeot 2008
- Mercedes-Benz GLA
- Opel Mokka
- Renault Captur
- Mazda CX-30
- Volkswagen ID.3
- Renault Kadjar
- Jeep Compass
- Jeep Avenger
- Opel Mokka-X
- Alfa Romeo Junior
- Fiat 600
- Peugeot E-2008
- Renault Arkana
- Volvo V60
- Cupra Born
- Hyundai Kona
- Chevrolet Trax
- Dodge Caliber
- Mitsubishi ASX
- BYD Atto
- Chrysler Sebring
- Jeep Patriot
- Dodge Avenger
- Nissan X-Trail
- Renault Symbioz
- Kia Seltos
- Mazda MX-30
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 18-inch sizes
Reading the 215/55R18 size
- 215 — section width in millimetres (8.46 in).
- 55 — aspect ratio: the sidewall is 55 % of the width, 118.3 mm.
- R — radial construction (ZR on the sidewall means a high-speed rated radial; the dimensions are the same).
- 18 — fits a 18-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.