285/45R18 tire size
A 285/45R18 tire is 28.10 in (713.7 mm) tall and 11.22 in (285.0 mm) wide, and turns 718 revolutions per mile.
- 28.10 inOverall diameter
- 5.05 inSidewall height
- 718Revolutions per mile
- 28.1x11.2R18Flotation equivalent
| Measurement | Inches | Millimeters |
|---|---|---|
| Overall diameter | 28.10 in | 713.7 mm |
| Section width | 11.22 in | 285.0 mm |
| Sidewall height | 5.05 in | 128.3 mm |
| Rim diameter | 18.00 in | 457.2 mm |
| Circumference | 88.27 in | 2,242 mm |
| Revolutions per mile | 718 | |
| Flotation equivalent | 28.1x11.2R18 (approx.) | |
285/45R18 is a 18-inch tire with a 285 mm (11.22 in) section width and a 45% aspect ratio, giving a 5.05-inch sidewall and a flotation-style size of about 28.1x11.2R18.
Its overall diameter is 28.10 inches, so it rolls 88.3 inches per revolution and turns about 718 times per mile.
73 other sizes in this list are within 3% of that diameter.
Compare 285/45R18 with plausible swaps
- 215/70R16 vs 285/45R18 (−0.88%)
- 235/65R16 vs 285/45R18 (−0.25%)
- 205/75R16 vs 285/45R18 (+0.03%)
- 225/70R16 vs 285/45R18 (+1.08%)
- 245/65R16 vs 285/45R18 (+1.57%)
- 215/65R17 vs 285/45R18 (−0.34%)
- 235/60R17 vs 285/45R18 (+0.01%)
- 285/40R18 vs 285/45R18 (−3.99%)
- 265/45R18 vs 285/45R18 (−2.52%)
- 275/45R18 vs 285/45R18 (−1.26%)
- 255/50R18 vs 285/45R18 (−0.21%)
- 285/45R18 vs 235/55R18 (+0.28%)
- 285/45R18 vs 225/50R19 (−0.85%)
- 285/45R18 vs 285/40R19 (−0.43%)
- 285/45R18 vs 255/45R19 (−0.22%)
- 285/45R18 vs 235/50R19 (+0.55%)
- 285/45R18 vs 295/40R19 (+0.69%)
- 285/45R18 vs 255/40R20 (−0.24%)
- 285/45R18 vs 295/35R20 (+0.11%)
- 285/45R18 vs 235/45R20 (+0.81%)
- 285/45R18 vs 265/40R20 (+0.88%)
Sizes within 3% of 28.10 in diameter
- 235/60R17 28.10 in (+0.01%)
- 205/75R16 28.11 in (+0.03%)
- 295/35R20 28.13 in (+0.11%)
- 255/50R18 28.04 in (−0.21%)
- 255/45R19 28.04 in (−0.22%)
- 255/40R20 28.03 in (−0.24%)
- 235/65R16 28.03 in (−0.25%)
- 255/35R21 28.03 in (−0.25%)
- 255/30R22 28.02 in (−0.27%)
- 235/55R18 28.18 in (+0.28%)
- 215/65R17 28.00 in (−0.34%)
- 305/30R21 28.20 in (+0.38%)
- 285/40R19 27.98 in (−0.43%)
- 295/30R21 27.97 in (−0.46%)
- 235/70R15 27.95 in (−0.52%)
- 235/50R19 28.25 in (+0.55%)
- 265/30R22 28.26 in (+0.57%)
- 225/75R15 28.29 in (+0.67%)
- 295/40R19 28.29 in (+0.69%)
- 265/35R21 28.30 in (+0.73%)
- 235/45R20 28.33 in (+0.81%)
- 225/50R19 27.86 in (−0.85%)
- 285/35R20 27.85 in (−0.87%)
- 265/40R20 28.35 in (+0.88%)
- 215/70R16 27.85 in (−0.88%)
- 265/45R19 28.39 in (+1.04%)
- 295/25R22 27.81 in (−1.04%)
- 225/70R16 28.40 in (+1.08%)
- 245/30R22 27.79 in (−1.11%)
- 265/50R18 28.43 in (+1.19%)
- 245/35R21 27.75 in (−1.23%)
- 225/55R18 27.74 in (−1.26%)
- 275/45R18 27.74 in (−1.26%)
- 245/40R20 27.72 in (−1.36%)
- 275/30R22 28.50 in (+1.42%)
- 215/75R15 27.70 in (−1.43%)
- 225/65R17 28.52 in (+1.49%)
- 245/45R19 27.68 in (−1.49%)
- 275/40R19 27.66 in (−1.56%)
- 245/65R16 28.54 in (+1.57%)
- 245/50R18 27.65 in (−1.61%)
- 225/60R17 27.63 in (−1.67%)
- 245/60R17 28.57 in (+1.70%)
- 275/35R21 28.58 in (+1.71%)
- 245/55R17 27.61 in (−1.74%)
- 245/55R18 28.61 in (+1.82%)
- 275/35R20 27.58 in (−1.85%)
- 245/60R16 27.57 in (−1.86%)
- 225/60R18 28.63 in (+1.89%)
- 245/50R19 28.65 in (+1.95%)
- 275/40R20 28.66 in (+2.00%)
- 325/30R21 28.68 in (+2.06%)
- 245/45R20 28.68 in (+2.07%)
- 315/35R20 28.68 in (+2.07%)
- 225/65R16 27.52 in (−2.07%)
- 215/75R16 28.70 in (+2.13%)
- 275/30R21 27.50 in (−2.14%)
- 245/40R21 28.72 in (+2.20%)
- 285/30R22 28.73 in (+2.26%)
- 225/55R19 28.74 in (+2.30%)
- 275/45R19 28.74 in (+2.30%)
- 245/35R22 28.75 in (+2.33%)
- 305/35R19 27.41 in (−2.47%)
- 225/70R15 27.40 in (−2.48%)
- 265/45R18 27.39 in (−2.52%)
- 265/40R19 27.35 in (−2.68%)
- 285/35R21 28.85 in (+2.69%)
- 235/45R19 27.33 in (−2.75%)
- 235/75R15 28.88 in (+2.77%)
- 215/55R18 27.31 in (−2.80%)
- 265/35R20 27.30 in (−2.83%)
- 295/40R18 27.29 in (−2.87%)
- 225/75R14 27.29 in (−2.89%)
Open 285/45R18 in the tire size calculator
Source: Calculated from standard tire geometry formulas. Verified . How these numbers are calculated.