225/55R18 is a tire size notation. It describes geometry but does not establish the load, speed, tire class, wheel approval or fit of a particular replacement.
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How to read this size
- Nominal width: 225 mm
- Aspect ratio: 55 %
- Wheel diameter: 18.0 in
- Calculated nominal diameter: 704.7 mm
Calculated nominal diameter is an arithmetic estimate from the size code; actual product measurements vary.
Before ordering tires
Read the driver-door tire placard. Match the installed wheel, axle, tire class, load index, speed rating and any OE marking. The size alone cannot approve a replacement SKU. Tire-sidewall maximum pressure is not your vehicle’s cold inflation pressure.
Vehicles recorded with this size
| Model year and vehicle | Trim / option | Axle | Service |
|---|---|---|---|
| 2025 Alfa Romeo Tonale | Gas | unspecified | Not documented |
| 2025 Alfa Romeo Tonale | Hybrid | unspecified | Not documented |
| 2025 Chevrolet Trax | 1RS | front_rear | Not documented |
| 2025 Chevrolet Trax | ACTIV | front_rear | Not documented |
| 2025 Dodge Hornet | GT | unspecified | Not documented |
| 2025 Dodge Hornet | GT Plus | unspecified | Not documented |
| 2025 Dodge Hornet | R/T Plug-In Hybrid | unspecified | Not documented |
| 2025 Dodge Hornet | R/T Plus Plug-In Hybrid | unspecified | Not documented |
| 2025 Hyundai IONIQ 6 | SE AWD | front_rear | Not documented |
| 2025 Hyundai IONIQ 6 | SE RWD | front_rear | Not documented |
| 2025 Hyundai IONIQ 6 | SE Standard Range | front_rear | Not documented |
| 2023 Jeep Renegade | Altitude | unspecified | Not documented |
| 2023 Jeep Renegade | Limited | unspecified | Not documented |
| 2025 Mitsubishi Eclipse Cross | LE | unspecified | Not documented |
| 2025 Mitsubishi Eclipse Cross | SE | unspecified | Not documented |
| 2025 Mitsubishi Eclipse Cross | SEL | unspecified | Not documented |
| 2025 Subaru Crosstrek | Limited | front_rear | 98V |
| 2025 Subaru Crosstrek | Sport | front_rear | 98V |
| 2025 Subaru Forester | Limited | unspecified | Not documented |
| 2025 Subaru Forester | Limited Hybrid | unspecified | Not documented |
| 2025 Subaru Forester | Premium Hybrid | unspecified | Not documented |
| 2025 Toyota Corolla Cross | Hybrid Nightshade | front_rear | Not documented |
| 2025 Toyota Corolla Cross | Hybrid XSE | front_rear | Not documented |
| 2025 Toyota Corolla Cross | XLE AWD | front_rear | Not documented |
| 2025 Toyota Corolla Cross | XLE FWD | front_rear | Not documented |
Exact product variants in research
No source-backed rows are available for this exact selection.
Explore 225/55R18 tires on Amazon
Amazon search results may mix tire classes, load and speed ratings, OE markings and package quantities. Match the full requirement on your actual vehicle before ordering.
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Search 225/55R18 tires on AmazonCompare sizes with the tire size calculator. It is an educational geometry comparison, not a fitment ruling.
Sources and scope
- Goodyear — 2025 Subaru Forester: version/option and tire size (checked 2026-11-01)
- Subaru of America — 2025 Subaru Crosstrek Specifications (checked 2026-11-01)
- Goodyear — 2025 Hyundai IONIQ 6 tire size by trim (checked 2026-11-01)
- Goodyear — 2025 Toyota Corolla Cross tire size by version (checked 2026-11-01)
- Goodyear — 2025 Chevrolet Trax tire size by version (checked 2026-11-01)
- Goodyear — Find 2023 Jeep Renegade Tires | Goodyear (checked 2026-11-01)
- Goodyear — Find 2025 Dodge Hornet Tires | Goodyear (checked 2026-11-01)
- Goodyear — Find 2025 Mitsubishi Eclipse Cross Tires | Goodyear (checked 2026-11-01)
- Goodyear — Find 2025 Alfa Romeo Tonale Tires | Goodyear (checked 2026-11-01)
Research checked November 2, 2026. A source-observed size is not final product fitment. Confirm the actual vehicle and current manufacturer guidance.