tireheight.comEvery 305 size
28 sizes for 16″ to 24″ wheels, with the heights and widths their makers list.
| Size | Height ″ | Listed width ″ | Tires |
|---|---|---|---|
| 305/70R16 | 32.8–33.1 ≈33 | 12.0–12.3 | 7 |
| 305/65R17 | 32.6–32.9 ≈33 | 12.0–12.3 | 5 |
| 305/70R17 | 33.9 ≈34 | 12.2 | 3 |
| 305/35R18 | 26.4 | 12.3 | 3 |
| 305/60R18 | 32.4–32.7 ≈33 | 11.9–12.4 | 5 |
| 305/65R18 | 33.6–33.8 ≈34 | 12.2 | 4 |
| 305/70R18 | 34.8–35.3 ≈35 | 12.2–12.5 | 6 |
| 305/30R19 | 26.2–26.3 | 12.3 | 12 |
| 305/35R19 | 27.4 ≈27 | 12.3 | 2 |
| 305/25R20 | 26.0 | 12.3 | 1 |
| 305/30R20 | 27.2–27.4 ≈27 | 12.3–12.5 | 23 |
| 305/35R20 | 28.4 ≈28 | 12.3 | 9 |
| 305/40R20 | 29.6 ≈30 | 12.3 | 3 |
| 305/45R20 | 30.8 ≈31 | 11.9 | 2 |
| 305/50R20 | 32.0–32.2 ≈32 | 12.0–12.4 | 8 |
| 305/55R20 | 33.2–33.7 ≈33 | 12.2–12.5 | 14 |
| 305/25R21 | 27.0 ≈27 | 12.3 | 1 |
| 305/30R21 | 28.2 ≈28 | 12.3 | 6 |
| 305/35R21 | 29.4 ≈29 | 12.3 | 1 |
| 305/40R21 | 30.6 ≈31 | 12.3 | 1 |
| 305/30R22 | 29.3 ≈29 | 12.3 | 2 |
| 305/35R22 | 30.4 ≈30 | 12.3 | 1 |
| 305/40R22 | 31.6 ≈32 | 12.3 | 4 |
| 305/45R22 | 32.8–33.0 ≈33 | 11.9 | 9 |
| 305/50R22 | 34.1 ≈34 | 12.4 | 1 |
| 305/55R22 | 35.2 ≈35 | 12.4 | 2 |
| 305/40R23 | 32.6 ≈33 | – | 1 |
| 305/35R24 | 32.4 ≈32 | 12.3 | 2 |
305 against nearby widths
Nominal widths from the size code.
Questions about 305 tires
What size is a 305 tire in inches?
12.0 inches wide (305 mm). The 305 only gives the width. Height comes from the rest of the size, so the 28 sizes of this width here run from 26.0″ to 35.3″ tall: 305/55R20 is about 33.3″, 305/70R17 is about 33.9″ and 305/50R20 is about 32.1″.
Is a 305 tire a 33?
Some are. The 305 sizes that come out about 33″ tall are 305/55R20, 305/60R18, 305/45R22 and 305/70R16. 305s as a whole run from 26.0″ to 35.3″ tall, so check the full size, not just the width.
How much wider is a 305 than a 295?
10 mm, or 0.39″ on paper: about 0.20″ more on each side.
What widths do tire makers list for 305 tires?
The size code gives 12.0″. The widths the makers publish for the 124 305 tires here run from 11.9″ to 12.5″. Toyo publishes overall width; BFGoodrich, Michelin and Mickey Thompson publish section width.