185/55R15 tire size
A 185/55R15 tire is 23.01 in (584.5 mm) tall and 7.28 in (185.0 mm) wide, and turns 876 revolutions per mile.
- 23.01 inOverall diameter
- 4.01 inSidewall height
- 876Revolutions per mile
- 23.0x7.3R15Flotation equivalent
| Measurement | Inches | Millimeters |
|---|---|---|
| Overall diameter | 23.01 in | 584.5 mm |
| Section width | 7.28 in | 185.0 mm |
| Sidewall height | 4.01 in | 101.8 mm |
| Rim diameter | 15.00 in | 381.0 mm |
| Circumference | 72.29 in | 1,836 mm |
| Revolutions per mile | 876 | |
| Flotation equivalent | 23.0x7.3R15 (approx.) | |
185/55R15 is a 15-inch tire with a 185 mm (7.28 in) section width and a 55% aspect ratio, giving a 4.01-inch sidewall and a flotation-style size of about 23.0x7.3R15.
Its overall diameter is 23.01 inches, so it rolls 72.3 inches per revolution and turns about 876 times per mile.
25 other sizes in this list are within 3% of that diameter.
Compare 185/55R15 with plausible swaps
- 165/70R13 vs 185/55R15 (−3.99%)
- 145/80R13 vs 185/55R15 (−3.82%)
- 175/70R13 vs 185/55R15 (−1.59%)
- 155/80R13 vs 185/55R15 (−1.08%)
- 185/70R13 vs 185/55R15 (+0.80%)
- 165/80R13 vs 185/55R15 (+1.66%)
- 165/65R14 vs 185/55R15 (−2.46%)
- 185/60R14 vs 185/55R15 (−1.18%)
- 175/65R14 vs 185/55R15 (−0.24%)
- 165/70R14 vs 185/55R15 (+0.36%)
- 195/60R14 vs 185/55R15 (+0.87%)
- 175/55R15 vs 185/55R15 (−1.88%)
- 195/50R15 vs 185/55R15 (−1.45%)
- 185/55R15 vs 205/50R15 (+0.26%)
- 185/55R15 vs 175/60R15 (+1.11%)
- 185/55R15 vs 195/55R15 (+1.88%)
- 185/55R15 vs 185/60R15 (+3.17%)
- 185/55R15 vs 205/55R15 (+3.76%)
- 185/55R15 vs 195/45R16 (−0.44%)
- 185/55R15 vs 225/40R16 (+0.33%)
- 185/55R15 vs 205/45R16 (+1.09%)
- 185/55R15 vs 205/40R17 (+1.93%)
Sizes within 3% of 23.01 in diameter
- 175/65R14 22.96 in (−0.24%)
- 205/50R15 23.07 in (+0.26%)
- 225/40R16 23.09 in (+0.33%)
- 165/70R14 23.09 in (+0.36%)
- 195/45R16 22.91 in (−0.44%)
- 185/70R13 23.20 in (+0.80%)
- 195/60R14 23.21 in (+0.87%)
- 155/80R13 22.76 in (−1.08%)
- 205/45R16 23.26 in (+1.09%)
- 175/60R15 23.27 in (+1.11%)
- 185/60R14 22.74 in (−1.18%)
- 195/50R15 22.68 in (−1.45%)
- 175/70R13 22.65 in (−1.59%)
- 165/80R13 23.39 in (+1.66%)
- 175/55R15 22.58 in (−1.88%)
- 165/65R15 23.44 in (+1.88%)
- 195/55R15 23.44 in (+1.88%)
- 205/40R17 23.46 in (+1.93%)
- 215/50R15 23.46 in (+1.97%)
- 185/65R14 23.47 in (+1.98%)
- 165/65R14 22.44 in (−2.46%)
- 215/45R16 23.62 in (+2.63%)
- 175/70R14 23.65 in (+2.75%)
- 195/50R16 23.68 in (+2.89%)
- 205/60R14 23.69 in (+2.93%)
Open 185/55R15 in the tire size calculator
Source: Calculated from standard tire geometry formulas. Verified . How these numbers are calculated.