33-inch tire sizes
These 16 sizes measure between 32.5 and 33.5 inches tall (nominal), so they're all called 33-inch tires.
| Size | Diameter | Width | Rim |
|---|---|---|---|
| 265/60R20 | 32.52 in | 10.43 in | 20 in |
| 33x12.50R15 | 32.52 in | 12.52 in | 15 in |
| 285/65R18 | 32.59 in | 11.22 in | 18 in |
| 265/70R18 | 32.61 in | 10.43 in | 18 in |
| 285/70R17 | 32.71 in | 11.22 in | 17 in |
| 295/55R20 | 32.78 in | 11.61 in | 20 in |
| 305/70R16 | 32.81 in | 12.01 in | 16 in |
| 285/75R16 | 32.83 in | 11.22 in | 16 in |
| 275/60R20 | 32.99 in | 10.83 in | 20 in |
| 33x12.50R17 | 33.00 in | 12.50 in | 17 in |
| 255/85R16 | 33.07 in | 10.04 in | 16 in |
| 275/70R18 | 33.16 in | 10.83 in | 18 in |
| 305/55R20 | 33.21 in | 12.01 in | 20 in |
| 295/70R17 | 33.26 in | 11.61 in | 17 in |
| 295/75R16 | 33.42 in | 11.61 in | 16 in |
| 285/60R20 | 33.46 in | 11.22 in | 20 in |
A "33-inch tire" is a rounded name. A real new tire can differ from nominal within the official tolerance shown on each size page; check the maker's published diameter. See inch tire sizes.
Printed from https://tiresizecalc.net/inch/33-inch-tires/. Figures as published on 2026-11-01. The sources are listed below.
Sources
- UN Regulation No. 30 - Uniform provisions concerning the approval of pneumatic tyres for motor vehicles and their trailers (Revision 3). United Nations Economic Commission for Europe (UNECE). E/ECE/324 E/ECE/TRANS/505 Rev.1/Add.29/Rev.3. 2007-03-29. Para 2.15 and 6.1.2.1: aspect ratio and outer diameter, D = d + 2H. Retrieved 2026-11-01.
- UN Regulation No. 54 - Uniform provisions concerning the approval of pneumatic tyres for commercial vehicles and their trailers (Revision 2). United Nations Economic Commission for Europe (UNECE). E/ECE/324 E/ECE/TRANS/505 Rev.1/Add.53/Rev.2. 2004-04-16. Para 6.1.2.1: the same formula for light truck tires. Retrieved 2026-11-01.
- UN Regulation No. 30 - Uniform provisions concerning the approval of pneumatic tyres for motor vehicles and their trailers (Revision 3). United Nations Economic Commission for Europe (UNECE). E/ECE/324 E/ECE/TRANS/505 Rev.1/Add.29/Rev.3. 2007-03-29. Para 6.1.5: allowed outer diameter, Dmin = d + 2H x 0.97, Dmax = d + 2H x 1.04. Retrieved 2026-11-01.
- UN Regulation No. 54 - Uniform provisions concerning the approval of pneumatic tyres for commercial vehicles and their trailers (Revision 2). United Nations Economic Commission for Europe (UNECE). E/ECE/324 E/ECE/TRANS/505 Rev.1/Add.53/Rev.2. 2004-04-16. Annex 5 Part II Table B: design outer diameter and section width of 33x12.50R15LT. Retrieved 2026-11-01.
- UN Regulation No. 54 - Uniform provisions concerning the approval of pneumatic tyres for commercial vehicles and their trailers (Revision 2). United Nations Economic Commission for Europe (UNECE). E/ECE/324 E/ECE/TRANS/505 Rev.1/Add.53/Rev.2. 2004-04-16. Para 6.1.5.1, 6.1.5.3.1 and Table B note 2: allowed outer diameter for table sizes. Retrieved 2026-11-01.
- Computed by tiresizecalc.net from the cited formula. Sri Murugan Systems. Not in UN R54 Annex 5 Table B: diameter and width of 33x12.50R17 are the numbers in the size. Retrieved 2026-11-01.
- Computed by tiresizecalc.net from the cited formula. Sri Murugan Systems. Circumference = pi x diameter; revolutions per mile = 63,360 / circumference; 1 in = 25.4 mm exactly. Retrieved 2026-11-01.
Last reviewed 2026-11-01. The full source list, with dates and file checksums, is in How the numbers are calculated. To report an error, email contactus@tiresizecalc.net.