34.6" tall, 10.4" wide, 7.3" sidewall
A 265/70R20 tire is 34.6 inches (879 mm) tall and 10.4 inches wide. The sidewall is 70% of the width, 7.3 inches, on a 20-inch wheel, and the tire turns about 583 times per mile.
In flotation terms that is about 34.6x10.4R20, closest to the common 35x11.50R20 (35.0"). People often call it a 35-inch tire.
The size most often compared with it is 275/60R20, which is 1.6" shorter (−4.7%). At an indicated 60 mph you would be doing 57.2 mph on it, more than the 3% change many shops use as a limit.
| Current | New | Difference |
|---|
| Shows | Actual speed |
|---|
Same 20" wheel, within 20 mm of width and 10 points of aspect ratio.
| Size | Diameter | Width | Sidewall | vs 265/70R20 | |
|---|---|---|---|---|---|
| 285/65R20 | 34.6" | 11.2" | 7.3" | −0.1% | |
| 275/65R20 | 34.1" | 10.8" | 7.0" | −1.5% | |
| 275/70R20 | 35.2" | 10.8" | 7.6" | +1.6% | |
| 265/65R20 | 33.6" | 10.4" | 6.8" | −3.0% | |
| 265/75R20 | 35.6" | 10.4" | 7.8" | +3.0% | |
| 285/70R20 | 35.7" | 11.2" | 7.9" | +3.2% | |
| 285/60R20 | 33.5" | 11.2" | 6.7" | −3.3% | |
| 255/65R20 | 33.1" | 10.0" | 6.5" | −4.5% | |
| 275/60R20 | 33.0" | 10.8" | 6.5" | −4.7% | compare |
| 275/75R20 | 36.2" | 10.8" | 8.1" | +4.7% |
Sizes within 2% of 34.6" on 18" or 22" wheels.
| Size | Diameter | Width | Sidewall | vs 265/70R20 | |
|---|---|---|---|---|---|
| 325/65R18 | 34.6" | 12.8" | 8.3" | +0.1% | |
| 265/60R22 | 34.5" | 10.4" | 6.3" | −0.3% | |
| 265/80R18 | 34.7" | 10.4" | 8.3" | +0.3% | |
| 295/55R22 | 34.8" | 11.6" | 6.4" | +0.5% | |
| 325/50R22 | 34.8" | 12.8" | 6.4" | +0.5% | |
| 225/70R22 | 34.4" | 8.9" | 6.2" | −0.6% |
Actual speed when the speedometer is calibrated for 265/70R20.
| Speedometer shows | on 275/60R20 | on 285/65R20 | on 275/65R20 |
|---|---|---|---|
| 30 mph | 28.6 mph | 30.0 mph | 29.5 mph |
| 45 mph | 42.9 mph | 45.0 mph | 44.3 mph |
| 60 mph | 57.2 mph | 60.0 mph | 59.1 mph |
| 70 mph | 66.7 mph | 70.0 mph | 68.9 mph |
34.6 inches (879 mm). The sidewall is 7.3 inches.
10.4 inches (265 mm) section width, measured sidewall to sidewall.
About 34.6x10.4R20; the closest common flotation size is 35x11.50R20 at 35.0".
275/60R20 is −4.7% in diameter, more than the common 3% guideline, so expect a speedometer error and check clearance. It is 0.4" wider.