205/70R16 vs 215/55R18
215/55R18 is 1.0 mm taller than 205/70R16 in overall diameter (+0.1%), within the usual 3% limit, so it can replace it where the wheels and clearance allow. With 215/55R18 fitted, the speedometer reads 100 km/h when you are doing 100.1 km/h.
Dimensions side by side
| 205/70R16 | 215/55R18 | |
|---|---|---|
| Overall diameter | 693 mm (27.3″) | 694 mm (27.3″) |
| Section width | 205 mm | 215 mm |
| Sidewall height | 144 mm | 118 mm |
| Rim | 16″ | 18″ |
| Revolutions per km | 459 | 459 |
| In stock | 12 tires from $135.00 | 17 tires from $159.00 |
What changes
- Overall diameter: 215/55R18 is 1.0 mm taller (+0.1%).
- Speedometer: reads 100 km/h at an actual 100.1 km/h with 215/55R18.
- 215/55R18 is 10 mm wider, so check clearance and the recommended rim width.
- Wheel size changes from 16″ 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 205/70R16
Vehicles that use 215/55R18
See every alternate size for 205/70R16
Frequently asked questions
Can I use 215/55R18 instead of 205/70R16?
Usually, yes: 215/55R18 is within 3% of the overall diameter of 205/70R16 (+0.1%). 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 205/70R16 and 215/55R18?
With 215/55R18 instead of 205/70R16, the speedometer shows 100 km/h when you are actually doing 100.1 km/h.
Which vehicles came with both 205/70R16 and 215/55R18?
Both sizes were original equipment, on different trims or packages, on the 2018–2022 Chevrolet Trax, 2016–2017 Jeep Compass, 2013 Buick Encore.