255/35R21 tire size
A 255/35R21 tire is 28.03 in (711.9 mm) tall and 10.04 in (255.0 mm) wide, and turns 720 revolutions per mile.
- 28.03 inOverall diameter
- 3.51 inSidewall height
- 720Revolutions per mile
- 28.0x10.0R21Flotation equivalent
| Measurement | Inches | Millimeters |
|---|---|---|
| Overall diameter | 28.03 in | 711.9 mm |
| Section width | 10.04 in | 255.0 mm |
| Sidewall height | 3.51 in | 89.3 mm |
| Rim diameter | 21.00 in | 533.4 mm |
| Circumference | 88.05 in | 2,236 mm |
| Revolutions per mile | 720 | |
| Flotation equivalent | 28.0x10.0R21 (approx.) | |
255/35R21 is a 21-inch tire with a 255 mm (10.04 in) section width and a 35% aspect ratio, giving a 3.51-inch sidewall and a flotation-style size of about 28.0x10.0R21.
Its overall diameter is 28.03 inches, so it rolls 88.1 inches per revolution and turns about 720 times per mile.
73 other sizes in this list are within 3% of that diameter.
Compare 255/35R21 with plausible swaps
- 225/50R19 vs 255/35R21 (−0.60%)
- 285/40R19 vs 255/35R21 (−0.18%)
- 255/45R19 vs 255/35R21 (+0.03%)
- 235/50R19 vs 255/35R21 (+0.80%)
- 295/40R19 vs 255/35R21 (+0.94%)
- 285/35R20 vs 255/35R21 (−0.62%)
- 255/40R20 vs 255/35R21 (+0.01%)
- 295/35R20 vs 255/35R21 (+0.37%)
- 245/35R21 vs 255/35R21 (−0.98%)
- 295/30R21 vs 255/35R21 (−0.21%)
- 255/35R21 vs 305/30R21 (+0.63%)
- 255/35R21 vs 265/35R21 (+0.98%)
- 255/35R21 vs 275/35R21 (+1.97%)
- 255/35R21 vs 255/40R21 (+3.58%)
- 255/35R21 vs 245/30R22 (−0.86%)
- 255/35R21 vs 295/25R22 (−0.79%)
- 255/35R21 vs 255/30R22 (−0.01%)
- 255/35R21 vs 265/30R22 (+0.83%)
Sizes within 3% of 28.03 in diameter
- 235/65R16 28.03 in (0.00%)
- 255/40R20 28.03 in (+0.01%)
- 255/30R22 28.02 in (−0.01%)
- 255/45R19 28.04 in (+0.03%)
- 255/50R18 28.04 in (+0.04%)
- 215/65R17 28.00 in (−0.08%)
- 285/40R19 27.98 in (−0.18%)
- 295/30R21 27.97 in (−0.21%)
- 285/45R18 28.10 in (+0.25%)
- 235/70R15 27.95 in (−0.27%)
- 235/60R17 28.10 in (+0.27%)
- 205/75R16 28.11 in (+0.28%)
- 295/35R20 28.13 in (+0.37%)
- 235/55R18 28.18 in (+0.53%)
- 225/50R19 27.86 in (−0.60%)
- 285/35R20 27.85 in (−0.62%)
- 215/70R16 27.85 in (−0.63%)
- 305/30R21 28.20 in (+0.63%)
- 295/25R22 27.81 in (−0.79%)
- 235/50R19 28.25 in (+0.80%)
- 265/30R22 28.26 in (+0.83%)
- 245/30R22 27.79 in (−0.86%)
- 225/75R15 28.29 in (+0.93%)
- 295/40R19 28.29 in (+0.94%)
- 245/35R21 27.75 in (−0.98%)
- 265/35R21 28.30 in (+0.98%)
- 225/55R18 27.74 in (−1.01%)
- 275/45R18 27.74 in (−1.01%)
- 235/45R20 28.33 in (+1.07%)
- 245/40R20 27.72 in (−1.11%)
- 265/40R20 28.35 in (+1.14%)
- 215/75R15 27.70 in (−1.18%)
- 245/45R19 27.68 in (−1.24%)
- 265/45R19 28.39 in (+1.29%)
- 275/40R19 27.66 in (−1.31%)
- 225/70R16 28.40 in (+1.33%)
- 245/50R18 27.65 in (−1.36%)
- 225/60R17 27.63 in (−1.42%)
- 265/50R18 28.43 in (+1.45%)
- 245/55R17 27.61 in (−1.49%)
- 275/35R20 27.58 in (−1.60%)
- 245/60R16 27.57 in (−1.62%)
- 275/30R22 28.50 in (+1.67%)
- 225/65R17 28.52 in (+1.74%)
- 225/65R16 27.52 in (−1.83%)
- 245/65R16 28.54 in (+1.83%)
- 275/30R21 27.50 in (−1.90%)
- 245/60R17 28.57 in (+1.95%)
- 275/35R21 28.58 in (+1.97%)
- 245/55R18 28.61 in (+2.08%)
- 225/60R18 28.63 in (+2.15%)
- 245/50R19 28.65 in (+2.21%)
- 305/35R19 27.41 in (−2.22%)
- 225/70R15 27.40 in (−2.23%)
- 275/40R20 28.66 in (+2.26%)
- 265/45R18 27.39 in (−2.28%)
- 325/30R21 28.68 in (+2.32%)
- 245/45R20 28.68 in (+2.33%)
- 315/35R20 28.68 in (+2.33%)
- 215/75R16 28.70 in (+2.39%)
- 265/40R19 27.35 in (−2.43%)
- 245/40R21 28.72 in (+2.46%)
- 235/45R19 27.33 in (−2.50%)
- 285/30R22 28.73 in (+2.51%)
- 215/55R18 27.31 in (−2.56%)
- 225/55R19 28.74 in (+2.56%)
- 275/45R19 28.74 in (+2.56%)
- 265/35R20 27.30 in (−2.58%)
- 245/35R22 28.75 in (+2.58%)
- 295/40R18 27.29 in (−2.63%)
- 225/75R14 27.29 in (−2.64%)
- 235/50R18 27.25 in (−2.77%)
- 285/35R21 28.85 in (+2.95%)
Open 255/35R21 in the tire size calculator
Source: Calculated from standard tire geometry formulas. Verified . How these numbers are calculated.