265 mm tire sizes
A 265 mm wide tire is 10.43 inches wide (nominal section width). This site lists 10 sizes with a 265 width, from 30.43 to 32.61 inches tall.
265 mm ÷ 25.4 = 10.43 in. The first number in a metric size is the section width in millimetres. A real tire can be slightly wider. For passenger tires, FMVSS No. 139 permits up to 7 percent over the specified width.
Height of each 265 size, in inches
Each row is an aspect ratio and each column a rim diameter. Select a height to open that size.
| Size | 15 in | 16 in | 17 in | 18 in | 20 in |
|---|---|---|---|---|---|
| 265/50 | – | – | – | – | 30.43 |
| 265/60 | – | – | – | 30.52 | 32.52 |
| 265/65 | – | – | 30.56 | 31.56 | – |
| 265/70 | – | 30.61 | 31.61 | 32.61 | – |
| 265/75 | 30.65 | 31.65 | – | – | – |
265 mm compared with the next widths
A change of 10 mm in section width moves each sidewall about 5 mm (0.20 in), if the wheel offset stays the same.
| Width | Inches | Change | Each side |
|---|---|---|---|
| 255 mm | 10.04 | −0.39 | −0.20 |
| 275 mm | 10.83 | +0.39 | +0.20 |
To see where the sidewalls go on your wheel, use the wheel offset calculator. To keep the diameter on a different rim, use the plus-size calculator.
265 sizes by inch class
- 30-inch (all 30-inch sizes): 265/50R20
- 31-inch (all 31-inch sizes): 265/60R18, 265/65R17, 265/70R16, 265/75R15
- 32-inch (all 32-inch sizes): 265/65R18, 265/70R17, 265/75R16
- 33-inch (all 33-inch sizes): 265/60R20, 265/70R18
Inch-class names round the nominal diameter to the nearest inch. See inch tire sizes.
Printed from https://tiresizecalc.net/width/265-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.
- 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.
- 49 CFR 571.139 - Standard No. 139; New pneumatic radial tires for light vehicles. National Highway Traffic Safety Administration (NHTSA), Code of Federal Regulations (eCFR). 49 CFR 571.139. eCFR up to date as of 2026-10-15. S6.1.2: passenger tire width up to 7 percent (or 10 mm) over the specified width. Retrieved 2026-11-01.
- Computed by tiresizecalc.net from the cited formula. Sri Murugan Systems. Inches = mm / 25.4; each sidewall moves half of the width change when the offset stays the same. 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.