225/50R18 tire size
A 225/50R18 tire is 26.86 in (682.2 mm) tall and 8.86 in (225.0 mm) wide, and turns 751 revolutions per mile.
- 26.86 inOverall diameter
- 4.43 inSidewall height
- 751Revolutions per mile
- 26.9x8.9R18Flotation equivalent
| Measurement | Inches | Millimeters |
|---|---|---|
| Overall diameter | 26.86 in | 682.2 mm |
| Section width | 8.86 in | 225.0 mm |
| Sidewall height | 4.43 in | 112.5 mm |
| Rim diameter | 18.00 in | 457.2 mm |
| Circumference | 84.38 in | 2,143 mm |
| Revolutions per mile | 751 | |
| Flotation equivalent | 26.9x8.9R18 (approx.) | |
225/50R18 is a 18-inch tire with a 225 mm (8.86 in) section width and a 50% aspect ratio, giving a 4.43-inch sidewall and a flotation-style size of about 26.9x8.9R18.
Its overall diameter is 26.86 inches, so it rolls 84.4 inches per revolution and turns about 751 times per mile.
66 other sizes in this list are within 3% of that diameter.
Compare 225/50R18 with plausible swaps
- 225/60R16 vs 225/50R18 (−0.85%)
- 215/65R16 vs 225/50R18 (+0.54%)
- 235/60R16 vs 225/50R18 (+0.91%)
- 245/50R17 vs 225/50R18 (−0.79%)
- 225/55R17 vs 225/50R18 (−0.43%)
- 255/50R17 vs 225/50R18 (+0.67%)
- 225/45R18 vs 225/50R18 (−3.30%)
- 215/50R18 vs 225/50R18 (−1.47%)
- 275/40R18 vs 225/50R18 (−0.73%)
- 245/45R18 vs 225/50R18 (−0.66%)
- 225/50R18 vs 285/40R18 (+0.44%)
- 225/50R18 vs 255/45R18 (+0.66%)
- 225/50R18 vs 235/50R18 (+1.47%)
- 225/50R18 vs 245/50R18 (+2.93%)
- 225/50R18 vs 225/55R18 (+3.30%)
- 225/50R18 vs 245/40R19 (−0.53%)
- 225/50R18 vs 285/35R19 (−0.01%)
- 225/50R18 vs 225/45R19 (+0.43%)
- 225/50R18 vs 255/40R19 (+0.64%)
- 225/50R18 vs 285/30R20 (−0.47%)
- 225/50R18 vs 245/35R20 (−0.40%)
- 225/50R18 vs 295/30R20 (+0.41%)
- 225/50R18 vs 255/35R20 (+0.63%)
- 225/50R18 vs 225/40R20 (+0.85%)
Sizes within 3% of 26.86 in diameter
- 285/35R19 26.85 in (−0.01%)
- 215/70R15 26.85 in (−0.03%)
- 245/35R20 26.75 in (−0.40%)
- 295/30R20 26.97 in (+0.41%)
- 225/45R19 26.97 in (+0.43%)
- 225/55R17 26.74 in (−0.43%)
- 285/40R18 26.98 in (+0.44%)
- 285/30R20 26.73 in (−0.47%)
- 27x8.50R14 27.00 in (+0.53%)
- 245/40R19 26.72 in (−0.53%)
- 215/65R16 27.00 in (+0.54%)
- 215/75R14 26.70 in (−0.60%)
- 255/35R20 27.03 in (+0.63%)
- 255/40R19 27.03 in (+0.64%)
- 245/45R18 26.68 in (−0.66%)
- 255/45R18 27.04 in (+0.66%)
- 255/50R17 27.04 in (+0.67%)
- 275/40R18 26.66 in (−0.73%)
- 245/50R17 26.65 in (−0.79%)
- 225/40R20 27.09 in (+0.85%)
- 225/60R16 26.63 in (−0.85%)
- 235/60R16 27.10 in (+0.91%)
- 205/75R15 27.11 in (+0.92%)
- 295/35R19 27.13 in (+1.01%)
- 275/35R19 26.58 in (−1.04%)
- 215/60R17 27.16 in (+1.11%)
- 235/55R17 27.18 in (+1.19%)
- 225/65R15 26.52 in (−1.28%)
- 275/30R20 26.50 in (−1.35%)
- 205/65R16 26.49 in (−1.36%)
- 235/35R20 26.48 in (−1.42%)
- 215/50R18 26.46 in (−1.47%)
- 235/50R18 27.25 in (+1.47%)
- 225/75R14 27.29 in (+1.60%)
- 295/40R18 27.29 in (+1.61%)
- 265/35R20 27.30 in (+1.66%)
- 215/55R18 27.31 in (+1.69%)
- 225/70R14 26.40 in (−1.70%)
- 235/40R19 26.40 in (−1.70%)
- 235/45R19 27.33 in (+1.74%)
- 265/40R19 27.35 in (+1.82%)
- 265/40R18 26.35 in (−1.91%)
- 235/45R18 26.33 in (−1.98%)
- 265/45R18 27.39 in (+1.98%)
- 225/70R15 27.40 in (+2.02%)
- 305/35R19 27.41 in (+2.04%)
- 215/55R17 26.31 in (−2.04%)
- 265/35R19 26.30 in (−2.07%)
- 205/70R15 26.30 in (−2.08%)
- 265/30R20 26.26 in (−2.23%)
- 235/50R17 26.25 in (−2.26%)
- 275/30R21 27.50 in (+2.37%)
- 305/30R19 26.20 in (−2.43%)
- 225/65R16 27.52 in (+2.45%)
- 225/35R20 26.20 in (−2.45%)
- 215/60R16 26.16 in (−2.61%)
- 245/60R16 27.57 in (+2.67%)
- 275/35R20 27.58 in (+2.68%)
- 295/35R18 26.13 in (−2.71%)
- 245/55R17 27.61 in (+2.80%)
- 205/75R14 26.11 in (−2.80%)
- 235/60R15 26.10 in (−2.81%)
- 225/60R17 27.63 in (+2.87%)
- 225/40R19 26.09 in (−2.87%)
- 245/50R18 27.65 in (+2.93%)
- 275/40R19 27.66 in (+2.99%)
Open 225/50R18 in the tire size calculator
Source: Calculated from standard tire geometry formulas. Verified . How these numbers are calculated.