255/50R18 tire size
A 255/50R18 tire is 28.04 in (712.2 mm) tall and 10.04 in (255.0 mm) wide, and turns 719 revolutions per mile.
- 28.04 inOverall diameter
- 5.02 inSidewall height
- 719Revolutions per mile
- 28.0x10.0R18Flotation equivalent
| Measurement | Inches | Millimeters |
|---|---|---|
| Overall diameter | 28.04 in | 712.2 mm |
| Section width | 10.04 in | 255.0 mm |
| Sidewall height | 5.02 in | 127.5 mm |
| Rim diameter | 18.00 in | 457.2 mm |
| Circumference | 88.09 in | 2,237 mm |
| Revolutions per mile | 719 | |
| Flotation equivalent | 28.0x10.0R18 (approx.) | |
255/50R18 is a 18-inch tire with a 255 mm (10.04 in) section width and a 50% aspect ratio, giving a 5.02-inch sidewall and a flotation-style size of about 28.0x10.0R18.
Its overall diameter is 28.04 inches, so it rolls 88.1 inches per revolution and turns about 719 times per mile.
74 other sizes in this list are within 3% of that diameter.
Compare 255/50R18 with plausible swaps
- 215/70R16 vs 255/50R18 (−0.67%)
- 235/65R16 vs 255/50R18 (−0.04%)
- 205/75R16 vs 255/50R18 (+0.24%)
- 225/70R16 vs 255/50R18 (+1.29%)
- 215/65R17 vs 255/50R18 (−0.13%)
- 235/60R17 vs 255/50R18 (+0.22%)
- 255/45R18 vs 255/50R18 (−3.58%)
- 235/50R18 vs 255/50R18 (−2.81%)
- 245/50R18 vs 255/50R18 (−1.40%)
- 255/50R18 vs 285/45R18 (+0.21%)
- 255/50R18 vs 235/55R18 (+0.49%)
- 255/50R18 vs 265/50R18 (+1.40%)
- 255/50R18 vs 255/55R18 (+3.58%)
- 255/50R18 vs 225/50R19 (−0.65%)
- 255/50R18 vs 285/40R19 (−0.22%)
- 255/50R18 vs 255/45R19 (−0.01%)
- 255/50R18 vs 235/50R19 (+0.76%)
- 255/50R18 vs 295/40R19 (+0.90%)
- 255/50R18 vs 285/35R20 (−0.66%)
- 255/50R18 vs 255/40R20 (−0.03%)
- 255/50R18 vs 295/35R20 (+0.32%)
Sizes within 3% of 28.04 in diameter
- 255/45R19 28.04 in (−0.01%)
- 255/40R20 28.03 in (−0.03%)
- 235/65R16 28.03 in (−0.04%)
- 255/35R21 28.03 in (−0.04%)
- 255/30R22 28.02 in (−0.06%)
- 215/65R17 28.00 in (−0.13%)
- 285/45R18 28.10 in (+0.21%)
- 235/60R17 28.10 in (+0.22%)
- 285/40R19 27.98 in (−0.22%)
- 205/75R16 28.11 in (+0.24%)
- 295/30R21 27.97 in (−0.25%)
- 235/70R15 27.95 in (−0.31%)
- 295/35R20 28.13 in (+0.32%)
- 235/55R18 28.18 in (+0.49%)
- 305/30R21 28.20 in (+0.59%)
- 225/50R19 27.86 in (−0.65%)
- 285/35R20 27.85 in (−0.66%)
- 215/70R16 27.85 in (−0.67%)
- 235/50R19 28.25 in (+0.76%)
- 265/30R22 28.26 in (+0.79%)
- 295/25R22 27.81 in (−0.83%)
- 225/75R15 28.29 in (+0.88%)
- 295/40R19 28.29 in (+0.90%)
- 245/30R22 27.79 in (−0.90%)
- 265/35R21 28.30 in (+0.94%)
- 235/45R20 28.33 in (+1.02%)
- 245/35R21 27.75 in (−1.02%)
- 225/55R18 27.74 in (−1.05%)
- 275/45R18 27.74 in (−1.05%)
- 265/40R20 28.35 in (+1.10%)
- 245/40R20 27.72 in (−1.15%)
- 215/75R15 27.70 in (−1.22%)
- 265/45R19 28.39 in (+1.25%)
- 245/45R19 27.68 in (−1.28%)
- 225/70R16 28.40 in (+1.29%)
- 275/40R19 27.66 in (−1.35%)
- 245/50R18 27.65 in (−1.40%)
- 265/50R18 28.43 in (+1.40%)
- 225/60R17 27.63 in (−1.46%)
- 245/55R17 27.61 in (−1.53%)
- 275/30R22 28.50 in (+1.63%)
- 275/35R20 27.58 in (−1.64%)
- 245/60R16 27.57 in (−1.66%)
- 225/65R17 28.52 in (+1.70%)
- 245/65R16 28.54 in (+1.78%)
- 225/65R16 27.52 in (−1.87%)
- 245/60R17 28.57 in (+1.91%)
- 275/35R21 28.58 in (+1.92%)
- 275/30R21 27.50 in (−1.94%)
- 245/55R18 28.61 in (+2.04%)
- 225/60R18 28.63 in (+2.11%)
- 245/50R19 28.65 in (+2.16%)
- 275/40R20 28.66 in (+2.22%)
- 305/35R19 27.41 in (−2.26%)
- 325/30R21 28.68 in (+2.27%)
- 225/70R15 27.40 in (−2.27%)
- 245/45R20 28.68 in (+2.29%)
- 315/35R20 28.68 in (+2.29%)
- 265/45R18 27.39 in (−2.32%)
- 215/75R16 28.70 in (+2.34%)
- 245/40R21 28.72 in (+2.42%)
- 285/30R22 28.73 in (+2.47%)
- 265/40R19 27.35 in (−2.47%)
- 225/55R19 28.74 in (+2.51%)
- 275/45R19 28.74 in (+2.51%)
- 245/35R22 28.75 in (+2.54%)
- 235/45R19 27.33 in (−2.54%)
- 215/55R18 27.31 in (−2.60%)
- 265/35R20 27.30 in (−2.63%)
- 295/40R18 27.29 in (−2.67%)
- 225/75R14 27.29 in (−2.68%)
- 235/50R18 27.25 in (−2.81%)
- 285/35R21 28.85 in (+2.91%)
- 235/75R15 28.88 in (+2.99%)
Open 255/50R18 in the tire size calculator
Source: Calculated from standard tire geometry formulas. Verified . How these numbers are calculated.