
The 205/55R16 Tire and 275/65R18 Tire are most easily told apart by their overall size. On height, the 275/65R18 Tire measures 815.0 mm against the 205/55R16 Tire's 632.0 mm — about 183.0 mm more. On width, the 275/65R18 Tire measures 815.0 mm against the 205/55R16 Tire's 632.0 mm — about 183.0 mm more. On thickness, the 275/65R18 Tire measures 275.0 mm against the 205/55R16 Tire's 205.0 mm — about 70.0 mm more.
The 275/65R18 Tire is the heavier of the two at 23.00 kg, compared with 9.00 kg for the 205/55R16 Tire. That is a 14.00 kg difference (156%). The weight gap is modest and rarely the headline difference between them.
| Metric | 205/55R16 Tire | 275/65R18 Tire | Diff |
|---|---|---|---|
| Width | 632.0 mm | 815.0 mm | -183.0 mm |
| Height | 632.0 mm | 815.0 mm | -183.0 mm |
| Depth | 205.0 mm | 275.0 mm | -70.0 mm |
| Weight | 9.00 kg | 23.00 kg | -14.00 kg |