215/55R16 is 0.4″ taller than 205/55R16 on average, going by the heights their makers list (24.9″ vs 25.3″). On paper the gap is 0.43″.
Going from 205/55R16 to 215/55R16.
Lift is half the height difference, since the axle sits at the middle of the tire. The speedometer figure assumes it was set for 205/55R16 and uses the revolutions per mile the makers publish: at an indicated 60 mph you'd be doing 61.0 mph.
The same model in each size, by the heights the maker lists. Averages where a model comes in several load ranges.
| Tire | 205/55R16 ″ | 215/55R16 ″ | Taller by | Heavier by |
|---|---|---|---|---|
| BFGoodrich Advantage Control | 24.88 | 25.28 | +0.40″ | +1.2 lb |
| General AltiMAX Arctic X | 24.90 | 25.30 | +0.40″ | +2.4 lb |
| General AltiMAX RT45 | 24.90 | 25.30 | +0.40″ | +1.5 lb |
| General AltiMAX365 AW | 24.90 | 25.30 | +0.40″ | +0.8 lb |
| General G-MAX AS07 | 24.90 | 25.30 | +0.40″ | +1.3 lb |
| Michelin CrossClimate2 | 24.90 | 25.30 | +0.40″ | −0.1 lb |
| Michelin Defender2 | 24.80 | 25.20 | +0.40″ | +1.0 lb |
| Michelin X-Ice Snow | 24.88 | 25.28 | +0.40″ | +1.4 lb |
| Toyo Celsius II | 24.88 | 25.28 | +0.40″ | +1.5 lb |
| Toyo Extensa A/S II | 24.88 | 25.27 | +0.39″ | +2.6 lb |
| Toyo Extensa HP II | 24.88 | 25.27 | +0.39″ | +1.5 lb |
| Toyo Observe G3-Ice | 24.88 | 25.27 | +0.39″ | +2.0 lb |
0.39″ on average, going by the heights tire makers list: 205/55R16 tires are listed at 24.78–25.10″ and 215/55R16 at 25.20–25.30″. The size codes work out to 24.88″ and 25.31″, a 0.43″ difference.
The tire's radius grows by 0.19″, so the axle sits about 0.19″ higher, and the top of the tread comes 0.19″ closer to the fender. 215/55R16 is also 0.39″ wider on paper, 0.20″ per side on the same wheel. Whether it fits depends on your vehicle, lift and wheel offset.
Yes. If it's set for 205/55R16, it will read about 1.6% slow: at an indicated 60 mph you'll be doing 61.0 mph. Worked out from the revolutions per mile the makers publish.
Both fit a 16-inch wheel. Wheel widths approved for both run from 6.0″ to 7.5″.