185/55R15 tire size
A 185/55R15 tire is 23.01 inches (584.5 mm) tall, 7.28 in (185 mm) wide and fits a 15-inch wheel. In inch notation it is roughly a 23.0x7.3R15.
| Overall diameter | 23.01 in | 584.5 mm |
|---|---|---|
| Section width | 7.28 in | 185 mm |
| Sidewall height | 4.01 in | 101.8 mm |
| Circumference | 72.29 in | 1,836 mm |
| Revolutions | 876.4 per mile | 544.6 per km |
| Rim diameter | 15 in | 381.0 mm |
Compare 185/55R15 with another size
Alternative sizes on the same 15-inch wheel
Sizes in use within ±3 % of the overall diameter of 185/55R15:
Plus and minus sizes for 185/55R15
| Size | Wheel | Diameter | Difference |
|---|---|---|---|
| 185/70R13 | Minus 2 (13 in) | 23.20 in | +0.80% |
| 155/80R13 | Minus 2 (13 in) | 22.76 in | −1.08% |
| 205/60R13 | Minus 2 (13 in) | 22.69 in | −1.42% |
| 175/70R13 | Minus 2 (13 in) | 22.65 in | −1.59% |
| 175/65R14 | Minus 1 (14 in) | 22.96 in | −0.24% |
| 165/70R14 | Minus 1 (14 in) | 23.09 in | +0.36% |
| 195/60R14 | Minus 1 (14 in) | 23.21 in | +0.87% |
| 185/60R14 | Minus 1 (14 in) | 22.74 in | −1.18% |
| 195/45R16 | Plus 1 (16 in) | 22.91 in | −0.44% |
| 175/50R16 | Plus 1 (16 in) | 22.89 in | −0.53% |
| 215/40R16 | Plus 1 (16 in) | 22.77 in | −1.04% |
| 205/45R16 | Plus 1 (16 in) | 23.26 in | +1.09% |
| 195/40R17 | Plus 2 (17 in) | 23.14 in | +0.56% |
| 225/35R17 | Plus 2 (17 in) | 23.20 in | +0.82% |
| 205/40R17 | Plus 2 (17 in) | 23.46 in | +1.93% |
| 185/45R17 | Plus 2 (17 in) | 23.56 in | +2.36% |
Vehicles approved with 185/55R15 tires
Models whose Swiss type approval lists 185/55R15 as a standard or optional size (2,098 approvals in total). Always check your own vehicle's placard or papers.
- Fiat 500
- Skoda Fabia
- Volkswagen Up!
- Fiat Panda
- Skoda Roomster
- Skoda Citigo
- Hyundai i10
- Mazda 2
- Renault Twingo
- Kia Picanto
- Mitsubishi Colt
- SEAT Mii
- Volkswagen e-Up
- Lancia Ypsilon
- Renault Clio
- Fiat Punto
- Opel Karl
- Hyundai Getz
- SEAT Cordoba
- Fiat Brava
- Mercedes-Benz A-Class
- Peugeot 206
- Toyota Corolla
- Fiat Bravo
- Chevrolet Aveo
- Rover 25
- MG MGF
- Opel Corsa
- SEAT Ibiza
- Chevrolet Kalos
- Fiat Pandina
- Renault Megane
- Volkswagen Eco
- Opel Tigra
- Citroen C2
- Ford Fiesta
- Hyundai Accent
- Smart Forfour
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 15-inch sizes
Reading the 185/55R15 size
- 185 — section width in millimetres (7.28 in).
- 55 — aspect ratio: the sidewall is 55 % of the width, 101.8 mm.
- R — radial construction (ZR on the sidewall means a high-speed rated radial; the dimensions are the same).
- 15 — fits a 15-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.