215/60R17 vs 225/55R18
225/55R18 is 15.0 mm taller than 215/60R17 in overall diameter (+2.2%), within the usual 3% limit, so it can replace it where the wheels and clearance allow. With 225/55R18 fitted, the speedometer reads 100 km/h when you are doing 102.2 km/h.
Dimensions side by side
| 215/60R17 | 225/55R18 | |
|---|---|---|
| Overall diameter | 690 mm (27.2″) | 705 mm (27.8″) |
| Section width | 215 mm | 225 mm |
| Sidewall height | 129 mm | 124 mm |
| Rim | 17″ | 18″ |
| Revolutions per km | 461 | 452 |
| In stock | 40 tires from $108.00 | 44 tires from $156.00 |
What changes
- Overall diameter: 225/55R18 is 15.0 mm taller (+2.2%).
- Speedometer: reads 100 km/h at an actual 102.2 km/h with 225/55R18.
- 225/55R18 is 10 mm wider, so check clearance and the recommended rim width.
- Wheel size changes from 17″ to 18″: you need wheels in the new size.
- Choose a load index at least as high as the one on your door placard.
Vehicles that came with both sizes
Vehicles that use 215/60R17
Vehicles that use 225/55R18
See every alternate size for 215/60R17
Frequently asked questions
Can I use 225/55R18 instead of 215/60R17?
Usually, yes: 225/55R18 is within 3% of the overall diameter of 215/60R17 (+2.2%). Use wheels of the right size and width, match or exceed the original load index, and check clearance at full steering lock.
How much does the speedometer change between 215/60R17 and 225/55R18?
With 225/55R18 instead of 215/60R17, the speedometer shows 100 km/h when you are actually doing 102.2 km/h.
Which vehicles came with both 215/60R17 and 225/55R18?
Both sizes were original equipment, on different trims or packages, on the 2024 Dodge Hornet, 2015–2017, 2019–2020 Jeep Renegade, 2008–2009 Ford Taurus, 2007 Ford Five Hundred.