30.6" tall, 10.4" wide, 6.8" sidewall
A 265/65R17 tire is 30.6 inches (776 mm) tall and 10.4 inches wide. The sidewall is 65% of the width, 6.8 inches, on a 17-inch wheel, and the tire turns about 660 times per mile.
In flotation terms that is about 30.6x10.4R17. People often call it a 31-inch tire.
The size most often compared with it is 265/70R17, which is 1.0" taller (+3.4%). At an indicated 60 mph you would be doing 62.0 mph on it, more than the 3% change many shops use as a limit.
| Current | New | Difference |
|---|
| Shows | Actual speed |
|---|
Same 17" wheel, within 20 mm of width and 10 points of aspect ratio.
| Size | Diameter | Width | Sidewall | vs 265/65R17 | |
|---|---|---|---|---|---|
| 245/70R17 | 30.5" | 9.6" | 6.8" | −0.2% | |
| 285/60R17 | 30.5" | 11.2" | 6.7" | −0.3% | |
| 255/70R17 | 31.1" | 10.0" | 7.0" | +1.6% | |
| 255/65R17 | 30.1" | 10.0" | 6.5" | −1.7% | compare |
| 275/65R17 | 31.1" | 10.8" | 7.0" | +1.7% | |
| 275/60R17 | 30.0" | 10.8" | 6.5" | −1.9% | |
| 245/75R17 | 31.5" | 9.6" | 7.2" | +3.0% | |
| 285/65R17 | 31.6" | 11.2" | 7.3" | +3.3% | |
| 265/60R17 | 29.5" | 10.4" | 6.3" | −3.4% | |
| 265/70R17 | 31.6" | 10.4" | 7.3" | +3.4% | compare |
Sizes within 2% of 30.6" on 18" or 16" or 15" wheels.
| Size | Diameter | Width | Sidewall | vs 265/65R17 | |
|---|---|---|---|---|---|
| 245/65R18 | 30.5" | 9.6" | 6.3" | −0.1% | |
| 285/65R16 | 30.6" | 11.2" | 7.3" | +0.1% | |
| 265/70R16 | 30.6" | 10.4" | 7.3" | +0.1% | |
| 265/75R15 | 30.6" | 10.4" | 7.8" | +0.3% | |
| 245/75R16 | 30.5" | 9.6" | 7.2" | −0.3% | |
| 285/70R15 | 30.7" | 11.2" | 7.9" | +0.5% |
Actual speed when the speedometer is calibrated for 265/65R17.
| Speedometer shows | on 265/70R17 | on 255/65R17 | on 245/70R17 |
|---|---|---|---|
| 30 mph | 31.0 mph | 29.5 mph | 29.9 mph |
| 45 mph | 46.5 mph | 44.2 mph | 44.9 mph |
| 60 mph | 62.0 mph | 59.0 mph | 59.9 mph |
| 70 mph | 72.4 mph | 68.8 mph | 69.9 mph |
30.6 inches (776 mm). The sidewall is 6.8 inches.
10.4 inches (265 mm) section width, measured sidewall to sidewall.
About 30.6x10.4R17.
265/70R17 is +3.4% in diameter, more than the common 3% guideline, so expect a speedometer error and check clearance. It is 0.0" wider.