30.1" tall, 11.6" wide, 7.5" sidewall
A 295/65R15 tire is 30.1 inches (765 mm) tall and 11.6 inches wide. The sidewall is 65% of the width, 7.5 inches, on a 15-inch wheel, and the tire turns about 670 times per mile.
In flotation terms that is about 30.1x11.6R15, closest to the common 30x9.50R15 (30.0"). People often call it a 30-inch tire.
The size most often compared with it is 275/70R15, which is 0.1" taller (+0.2%). At an indicated 60 mph you would be doing 60.1 mph on it.
| Current | New | Difference |
|---|
| Shows | Actual speed |
|---|
Same 15" wheel, within 20 mm of width and 10 points of aspect ratio.
| Size | Diameter | Width | Sidewall | vs 295/65R15 | |
|---|---|---|---|---|---|
| 275/70R15 | 30.2" | 10.8" | 7.6" | +0.2% | |
| 315/60R15 | 29.9" | 12.4" | 7.4" | −0.7% | |
| 285/70R15 | 30.7" | 11.2" | 7.9" | +2.0% | |
| 275/75R15 | 31.2" | 10.8" | 8.1" | +3.8% | |
| 295/70R15 | 31.3" | 11.6" | 8.1" | +3.9% | |
| 295/60R15 | 28.9" | 11.6" | 7.0" | −3.9% | |
| 285/60R15 | 28.5" | 11.2" | 6.7" | −5.4% | |
| 305/70R15 | 31.8" | 12.0" | 8.4" | +5.7% | |
| 285/75R15 | 31.8" | 11.2" | 8.4" | +5.8% | |
| 32x11.50R15 | 32.0" | 11.5" | 8.5" | +6.3% |
Sizes within 2% of 30.1" on 16" or 14" or 17" wheels.
| Size | Diameter | Width | Sidewall | vs 295/65R15 | |
|---|---|---|---|---|---|
| 275/65R16 | 30.1" | 10.8" | 7.0" | −0.1% | |
| 255/80R14 | 30.1" | 10.0" | 8.0" | −0.1% | |
| 255/70R16 | 30.1" | 10.0" | 7.0" | −0.1% | |
| 255/65R17 | 30.1" | 10.0" | 6.5" | −0.2% | |
| 275/60R17 | 30.0" | 10.8" | 6.5" | −0.4% | |
| 305/55R17 | 30.2" | 12.0" | 6.6" | +0.4% |
Actual speed when the speedometer is calibrated for 295/65R15.
| Speedometer shows | on 275/70R15 | on 315/60R15 | on 285/70R15 |
|---|---|---|---|
| 30 mph | 30.1 mph | 29.8 mph | 30.6 mph |
| 45 mph | 45.1 mph | 44.7 mph | 45.9 mph |
| 60 mph | 60.1 mph | 59.6 mph | 61.2 mph |
| 70 mph | 70.1 mph | 69.5 mph | 71.4 mph |
30.1 inches (765 mm). The sidewall is 7.5 inches.
11.6 inches (295 mm) section width, measured sidewall to sidewall.
About 30.1x11.6R15; the closest common flotation size is 30x9.50R15 at 30.0".
275/70R15 is +0.2% in diameter, within the common 3% guideline. It is 0.8" narrower.