245/65R18 tire size
A 245/65R18 tire is 30.54 in (775.7 mm) tall and 9.65 in (245.0 mm) wide, and turns 660 revolutions per mile.
- 30.54 inOverall diameter
- 6.27 inSidewall height
- 660Revolutions per mile
- 30.5x9.6R18Flotation equivalent
| Measurement | Inches | Millimeters |
|---|---|---|
| Overall diameter | 30.54 in | 775.7 mm |
| Section width | 9.65 in | 245.0 mm |
| Sidewall height | 6.27 in | 159.3 mm |
| Rim diameter | 18.00 in | 457.2 mm |
| Circumference | 95.94 in | 2,437 mm |
| Revolutions per mile | 660 | |
| Flotation equivalent | 30.5x9.6R18 (approx.) | |
245/65R18 is a 18-inch tire with a 245 mm (9.65 in) section width and a 65% aspect ratio, giving a 6.27-inch sidewall and a flotation-style size of about 30.5x9.6R18.
Its overall diameter is 30.54 inches, so it rolls 95.9 inches per revolution and turns about 660 times per mile.
64 other sizes in this list are within 3% of that diameter.
Compare 245/65R18 with plausible swaps
- 215/85R16 vs 245/65R18 (−0.49%)
- 245/75R16 vs 245/65R18 (−0.23%)
- 265/70R16 vs 245/65R18 (+0.22%)
- 31x10.50R16 vs 245/65R18 (+1.51%)
- 225/75R17 vs 245/65R18 (−0.83%)
- 245/70R17 vs 245/65R18 (−0.12%)
- 265/65R17 vs 245/65R18 (+0.08%)
- 235/75R17 vs 245/65R18 (+1.11%)
- 245/60R18 vs 245/65R18 (−3.16%)
- 235/65R18 vs 245/65R18 (−1.68%)
- 265/60R18 vs 245/65R18 (−0.06%)
- 245/65R18 vs 255/65R18 (+1.68%)
- 245/65R18 vs 265/65R18 (+3.35%)
- 245/65R18 vs 265/55R19 (−0.21%)
- 245/65R18 vs 265/50R20 (−0.35%)
- 245/65R18 vs 295/45R20 (−0.28%)
- 245/65R18 vs 245/55R20 (+0.23%)
- 245/65R18 vs 305/45R20 (+0.88%)
- 245/65R18 vs 275/50R20 (+0.94%)
Sizes within 3% of 30.54 in diameter
- 265/60R18 30.52 in (−0.06%)
- 265/65R17 30.56 in (+0.08%)
- 245/70R17 30.50 in (−0.12%)
- 265/55R19 30.48 in (−0.21%)
- 265/70R16 30.61 in (+0.22%)
- 245/55R20 30.61 in (+0.23%)
- 245/75R16 30.47 in (−0.23%)
- 295/45R20 30.45 in (−0.28%)
- 265/50R20 30.43 in (−0.35%)
- 265/75R15 30.65 in (+0.36%)
- 275/40R22 30.66 in (+0.40%)
- 305/35R22 30.41 in (−0.44%)
- 215/85R16 30.39 in (−0.49%)
- 265/45R21 30.39 in (−0.49%)
- 285/30R24 30.73 in (+0.63%)
- 265/40R22 30.35 in (−0.63%)
- 275/45R21 30.74 in (+0.67%)
- 295/40R21 30.29 in (−0.81%)
- 225/75R17 30.29 in (−0.83%)
- 305/45R20 30.81 in (+0.88%)
- 275/50R20 30.83 in (+0.94%)
- 235/75R17 30.88 in (+1.11%)
- 235/55R20 30.18 in (−1.19%)
- 275/55R19 30.91 in (+1.21%)
- 285/40R22 30.98 in (+1.43%)
- 235/60R19 30.10 in (−1.43%)
- 285/45R20 30.10 in (−1.44%)
- 275/60R18 30.99 in (+1.48%)
- 31x10.50R15 31.00 in (+1.51%)
- 31x10.50R16 31.00 in (+1.51%)
- 255/70R16 30.06 in (−1.59%)
- 235/65R19 31.03 in (+1.60%)
- 255/65R17 30.05 in (−1.60%)
- 255/60R18 30.05 in (−1.61%)
- 255/55R19 30.04 in (−1.62%)
- 255/50R21 31.04 in (+1.64%)
- 255/50R20 30.04 in (−1.64%)
- 255/55R20 31.04 in (+1.65%)
- 255/45R21 30.04 in (−1.65%)
- 255/60R19 31.05 in (+1.66%)
- 255/40R22 30.03 in (−1.66%)
- 235/65R18 30.03 in (−1.68%)
- 255/65R18 31.05 in (+1.68%)
- 255/70R17 31.06 in (+1.69%)
- 275/65R17 31.07 in (+1.75%)
- 30x9.50R15 30.00 in (−1.77%)
- 275/60R17 29.99 in (−1.79%)
- 285/45R21 31.10 in (+1.83%)
- 285/40R21 29.98 in (−1.84%)
- 235/70R17 29.95 in (−1.92%)
- 275/55R18 29.91 in (−2.06%)
- 235/75R16 29.88 in (−2.17%)
- 305/30R24 31.20 in (+2.18%)
- 285/50R20 31.22 in (+2.23%)
- 285/35R22 29.85 in (−2.24%)
- 275/50R19 29.83 in (−2.33%)
- 295/40R22 31.29 in (+2.46%)
- 275/45R20 29.74 in (−2.60%)
- 265/45R22 31.39 in (+2.78%)
- 245/45R21 29.68 in (−2.81%)
- 315/35R21 29.68 in (−2.81%)
- 275/40R21 29.66 in (−2.87%)
- 265/50R21 31.43 in (+2.93%)
- 245/50R20 29.65 in (−2.93%)
Open 245/65R18 in the tire size calculator
Source: Calculated from standard tire geometry formulas. Verified . How these numbers are calculated.