27.8" tall, 11.6" wide, 6.4" sidewall
A 295/55R15 tire is 27.8 inches (706 mm) tall and 11.6 inches wide. The sidewall is 55% of the width, 6.4 inches, on a 15-inch wheel, and the tire turns about 726 times per mile.
In flotation terms that is about 27.8x11.6R15. People often call it a 28-inch tire.
The size most often compared with it is 275/60R15, which is 0.2" taller (+0.8%). At an indicated 60 mph you would be doing 60.5 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 295/55R15 | |
|---|---|---|---|---|---|
| 275/60R15 | 28.0" | 10.8" | 6.5" | +0.8% | compare |
| 315/50R15 | 27.4" | 12.4" | 6.2" | −1.3% | |
| 285/60R15 | 28.5" | 11.2" | 6.7" | +2.5% | |
| 305/50R15 | 27.0" | 12.0" | 6.0" | −2.8% | |
| 275/55R15 | 26.9" | 10.8" | 6.0" | −3.1% | |
| 295/50R15 | 26.6" | 11.6" | 5.8" | −4.2% | |
| 295/60R15 | 28.9" | 11.6" | 7.0" | +4.2% | |
| 275/50R15 | 25.8" | 10.8" | 5.4" | −7.0% | |
| 315/60R15 | 29.9" | 12.4" | 7.4" | +7.6% | |
| 295/65R15 | 30.1" | 11.6" | 7.5" | +8.4% |
Sizes within 2% of 27.8" on 17" wheels.
| Size | Diameter | Width | Sidewall | vs 295/55R15 | |
|---|---|---|---|---|---|
| 275/50R17 | 27.8" | 10.8" | 5.4" | +0.2% | |
| 245/55R17 | 27.6" | 9.6" | 5.3" | −0.6% | |
| 205/65R17 | 27.5" | 8.1" | 5.2" | −1.0% | |
| 265/50R17 | 27.4" | 10.4" | 5.2" | −1.2% |
Actual speed when the speedometer is calibrated for 295/55R15.
| Speedometer shows | on 275/60R15 | on 315/50R15 | on 285/60R15 |
|---|---|---|---|
| 30 mph | 30.2 mph | 29.6 mph | 30.7 mph |
| 45 mph | 45.4 mph | 44.4 mph | 46.1 mph |
| 60 mph | 60.5 mph | 59.2 mph | 61.5 mph |
| 70 mph | 70.5 mph | 69.1 mph | 71.7 mph |
27.8 inches (706 mm). The sidewall is 6.4 inches.
11.6 inches (295 mm) section width, measured sidewall to sidewall.
About 27.8x11.6R15.
275/60R15 is +0.8% in diameter, within the common 3% guideline. It is 0.8" narrower.