245/55R20 tire size
A 245/55R20 tire is 30.61 in (777.5 mm) tall and 9.65 in (245.0 mm) wide, and turns 659 revolutions per mile.
- 30.61 inOverall diameter
- 5.31 inSidewall height
- 659Revolutions per mile
- 30.6x9.6R20Flotation equivalent
| Measurement | Inches | Millimeters |
|---|---|---|
| Overall diameter | 30.61 in | 777.5 mm |
| Section width | 9.65 in | 245.0 mm |
| Sidewall height | 5.31 in | 134.8 mm |
| Rim diameter | 20.00 in | 508.0 mm |
| Circumference | 96.16 in | 2,443 mm |
| Revolutions per mile | 659 | |
| Flotation equivalent | 30.6x9.6R20 (approx.) | |
245/55R20 is a 20-inch tire with a 245 mm (9.65 in) section width and a 55% aspect ratio, giving a 5.31-inch sidewall and a flotation-style size of about 30.6x9.6R20.
Its overall diameter is 30.61 inches, so it rolls 96.2 inches per revolution and turns about 659 times per mile.
63 other sizes in this list are within 3% of that diameter.
Compare 245/55R20 with plausible swaps
- 265/60R18 vs 245/55R20 (−0.30%)
- 245/65R18 vs 245/55R20 (−0.23%)
- 275/60R18 vs 245/55R20 (+1.25%)
- 265/55R19 vs 245/55R20 (−0.44%)
- 275/55R19 vs 245/55R20 (+0.98%)
- 245/50R20 vs 245/55R20 (−3.15%)
- 235/55R20 vs 245/55R20 (−1.41%)
- 265/50R20 vs 245/55R20 (−0.58%)
- 295/45R20 vs 245/55R20 (−0.51%)
- 245/55R20 vs 305/45R20 (+0.64%)
- 245/55R20 vs 275/50R20 (+0.71%)
- 245/55R20 vs 255/55R20 (+1.41%)
- 245/55R20 vs 265/55R20 (+2.83%)
- 245/55R20 vs 295/40R21 (−1.04%)
- 245/55R20 vs 265/45R21 (−0.72%)
- 245/55R20 vs 275/45R21 (+0.44%)
- 245/55R20 vs 265/40R22 (−0.86%)
- 245/55R20 vs 305/35R22 (−0.67%)
- 245/55R20 vs 275/40R22 (+0.17%)
- 245/55R20 vs 285/40R22 (+1.20%)
Sizes within 3% of 30.61 in diameter
- 265/70R16 30.61 in (−0.01%)
- 265/75R15 30.65 in (+0.13%)
- 265/65R17 30.56 in (−0.15%)
- 275/40R22 30.66 in (+0.17%)
- 245/65R18 30.54 in (−0.23%)
- 265/60R18 30.52 in (−0.30%)
- 245/70R17 30.50 in (−0.35%)
- 285/30R24 30.73 in (+0.40%)
- 275/45R21 30.74 in (+0.44%)
- 265/55R19 30.48 in (−0.44%)
- 245/75R16 30.47 in (−0.46%)
- 295/45R20 30.45 in (−0.51%)
- 265/50R20 30.43 in (−0.58%)
- 305/45R20 30.81 in (+0.64%)
- 305/35R22 30.41 in (−0.67%)
- 275/50R20 30.83 in (+0.71%)
- 215/85R16 30.39 in (−0.72%)
- 265/45R21 30.39 in (−0.72%)
- 265/40R22 30.35 in (−0.86%)
- 235/75R17 30.88 in (+0.87%)
- 275/55R19 30.91 in (+0.98%)
- 295/40R21 30.29 in (−1.04%)
- 225/75R17 30.29 in (−1.05%)
- 285/40R22 30.98 in (+1.20%)
- 275/60R18 30.99 in (+1.25%)
- 31x10.50R15 31.00 in (+1.27%)
- 31x10.50R16 31.00 in (+1.27%)
- 235/65R19 31.03 in (+1.36%)
- 255/50R21 31.04 in (+1.40%)
- 235/55R20 30.18 in (−1.41%)
- 255/55R20 31.04 in (+1.41%)
- 255/60R19 31.05 in (+1.43%)
- 255/65R18 31.05 in (+1.44%)
- 255/70R17 31.06 in (+1.45%)
- 275/65R17 31.07 in (+1.52%)
- 285/45R21 31.10 in (+1.59%)
- 235/60R19 30.10 in (−1.66%)
- 285/45R20 30.10 in (−1.67%)
- 255/70R16 30.06 in (−1.81%)
- 255/65R17 30.05 in (−1.83%)
- 255/60R18 30.05 in (−1.84%)
- 255/55R19 30.04 in (−1.85%)
- 255/50R20 30.04 in (−1.86%)
- 255/45R21 30.04 in (−1.88%)
- 255/40R22 30.03 in (−1.89%)
- 235/65R18 30.03 in (−1.90%)
- 305/30R24 31.20 in (+1.94%)
- 30x9.50R15 30.00 in (−1.99%)
- 285/50R20 31.22 in (+1.99%)
- 275/60R17 29.99 in (−2.02%)
- 285/40R21 29.98 in (−2.07%)
- 235/70R17 29.95 in (−2.15%)
- 295/40R22 31.29 in (+2.23%)
- 275/55R18 29.91 in (−2.29%)
- 235/75R16 29.88 in (−2.39%)
- 285/35R22 29.85 in (−2.47%)
- 265/45R22 31.39 in (+2.55%)
- 275/50R19 29.83 in (−2.56%)
- 265/50R21 31.43 in (+2.69%)
- 285/60R18 31.46 in (+2.79%)
- 245/75R17 31.47 in (+2.80%)
- 275/45R20 29.74 in (−2.83%)
- 265/55R20 31.48 in (+2.83%)
Open 245/55R20 in the tire size calculator
Source: Calculated from standard tire geometry formulas. Verified . How these numbers are calculated.