Tires
225/55R18 Tires
Shop 225/55R18 tires for cars, SUVs, and crossovers. Compare all-season, winter, and all-weather options from top brands with free shipping across the USA.
225/55R18 Tires — Buying Guide for American Drivers
225/55R18 is a popular tire size for cars, SUVs, and crossovers in the USA. You may also see this size written as 225/55R18, 225 55 R18, 225-55-18, or 2255518 — all of those refer to the same tire. When shopping 225/55R18 tires, look for a load index that matches your vehicle's placard rating (typically 91–110 for passenger and light truck applications) and a speed rating of H or V for highway driving. All-season 225/55R18 tires are built for spring, summer, and fall driving when average temperatures stay above 7 °C — they harden in real American winter cold, so they're not a substitute for proper winter rubber. For sub-zero temperatures, snow, and ice you want a dedicated winter tire in 225/55R18 with the Three-Peak Mountain Snowflake (3PMSF) symbol, which is also a legal requirement in Quebec from December 1 to March 15. All-weather 225/55R18 tires split the difference — 3PMSF-certified for winter use but designed to run year-round without a seasonal swap, which is the right call for milder American climates. Filter by season, brand, speed rating, and load index above to find the right 225/55R18 tire for your vehicle. Autrex ships across the USA with free shipping on orders over $99.
225/55R18 tire size specifications
225/55R18 is a metric tire size: a 225 mm section width, a sidewall 55% as tall as that width, on a 18-inch rim.
| Specification | Value | Source |
|---|---|---|
| Tire size | 225/55R18 | From the size |
| Sizing system | Metric | From the size |
| Section width | 225 mm (8.9 in) | From the size |
| Aspect ratio | 55% | From the size |
| Sidewall height | 124 mm (4.9 in) | Calculated |
| Rim diameter | 18 in | From the size |
| Overall diameter | 705 mm (27.7 in) | Calculated |
| Circumference | 2,214 mm (87.2 in) | Calculated |
| Revolutions per km | 452 | Calculated |
Vehicles that come with 225/55R18 tires
Our fitment reference lists 225/55R18 as a factory tire size on these vehicles. Check the placard in your door jamb for your exact trim before you order.
- Acura ADX (2025 to 2027)Trims: Base
- Alfa Romeo Tonale (2023 to 2026)Trims: Base, Sprint, TI, Tributo
- BMW 530i xDrive (2024 to 2025)Trims: Base
- BMW 540i xDrive (2024)Trims: Base
- BMW X1 (2023 to 2027)Trims: xDrive28i
- Buick Encore GX (2020 to 2027)Trims: Essence, Preferred, Select, Sport Touring
- Buick Envista (2024 to 2027)Trims: Avenir, Sport Touring
- Chevrolet Trailblazer (2021 to 2026)Trims: ACTIV, L, LS, LT
- Chevrolet Trax (2024 to 2026)Trims: ACTIV, LS, LT, RS
- Dodge Hornet (2023 to 2025)Trims: GT, GT Plus, R/T, R/T Plus
- Honda HR-V (2023 to 2027)Trims: EX-L, Sport
- Hyundai Ioniq 6 (2023 to 2025)Trims: Limited, Preferred, SE
- Hyundai Tucson (2020 to 2021)Trims: Limited, Luxury, SEL, Ultimate
- Jeep Cherokee (2020 to 2021)Trims: Altitude, High Altitude, Latitude Plus, Limited
- Jeep Compass (2020 to 2026)Trims: Altitude, Latitude, Latitude Lux, Limited
- Jeep Renegade (2020 to 2023)Trims: Altitude, High Altitude, Latitude, Limited
- Kia Sportage (2020 to 2022)Trims: EX, EX Premium, EX Premium S, EX S
- Mercedes-Benz E350 (2024 to 2026)Trims: 4Matic, Base
- Mercedes-Benz E450 (2024 to 2026)Trims: 4Matic
- Mini Countryman (2025 to 2027)Trims: S ALL4, SE ALL4
- Mitsubishi Eclipse Cross (2022 to 2026)Trims: Black Edition, Carbon Edition, ES, GT
- Mitsubishi Outlander (2022)Trims: SE Launch Edition
- Mitsubishi Outlander PHEV (2021 to 2022)Trims: Black Edition, GT, LE, SE
- Mitsubishi Outlander Sport (2021 to 2026)Trims: BE, ES, GT, GT Special Edition
- Mitsubishi RVR (2021 to 2026)Trims: ES, GT, LE, SE
- Subaru Crosstrek (2021 to 2026)Trims: Base, Hybrid, Hybrid Limited, Limited
- Subaru Forester (2021 to 2027)Trims: Base, Convenience, Limited, Limited Hybrid
- Toyota Corolla Cross (2022 to 2027)Trims: Hybrid Nightshade, Hybrid S, Hybrid SE, Hybrid XSE
- Volvo EX30 (2025 to 2027)Trims: Core, Plus
The list is capped, so older model years of some vehicles may be missing.
225/55R18 tire questions
- What does 225/55R18 mean?
- 225/55R18 describes a tire 225 mm wide at its widest point, with a sidewall 55% as tall as it is wide, built for a 18-inch rim.
- How tall is a 225/55R18 tire?
- Calculated from the size, a 225/55R18 tire stands about 705 mm (27.7 inches) tall.
- Which vehicles use 225/55R18 tires?
- Our fitment reference lists 225/55R18 as a factory size on vehicles including Acura ADX, Alfa Romeo Tonale, BMW 530i xDrive, BMW 540i xDrive and BMW X1. Confirm the placard size for your trim before you order.