33x12.50R15 equivalent tire sizes
Close match
275/70R18 is the closest TireFitLab equivalent for 33x12.50R15 in the opposite size format, with an overall-diameter difference of +0.48%. Treat it as a conversion starting point, not a vehicle fitment guarantee.
| Candidate size | Format | Overall diameter | Section width | Diameter difference | Compare |
|---|---|---|---|---|---|
| 33x12.50R15 | flotation | 33.00 in | 318 mm | 0% | Open calculator |
| 275/70R18 | metric | 33.16 in | 275 mm | +0.48% | Compare |
| 285/75R16 | metric | 32.83 in | 285 mm | -0.51% | Compare |
| 305/45R22 | metric | 32.81 in | 305 mm | -0.58% | Compare |
| 285/65R18 | metric | 32.59 in | 285 mm | -1.25% | Compare |
| 285/45R22 | metric | 32.10 in | 285 mm | -2.73% | Compare |
| 275/65R18 | metric | 32.07 in | 275 mm | -2.80% | Compare |
| 275/55R20 | metric | 31.91 in | 275 mm | -3.30% | Compare |
| 275/45R22 | metric | 31.74 in | 275 mm | -3.81% | Compare |
Reference pages are limited to the public TireFitLab size corpus. The long tail stays gated until demand data supports expansion.
How to use equivalent sizes
Equivalent size pages translate between metric and flotation-style tire markings by comparing computed overall diameter and section width. A close equivalent can still be unsuitable if load rating, rim width, offset, vehicle clearance or local approval rules do not match.
Related references
Seasonal check
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