25.2" tall, 8.5" wide, 5.1" sidewall
A 215/60R15 tire is 25.2 inches (639 mm) tall and 8.5 inches wide. The sidewall is 60% of the width, 5.1 inches, on a 15-inch wheel, and the tire turns about 802 times per mile.
In flotation terms that is about 25.2x8.5R15. People often call it a 25-inch tire.
The size most often compared with it is 225/60R15, which is 0.5" taller (+1.9%). At an indicated 60 mph you would be doing 61.1 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 215/60R15 | |
|---|---|---|---|---|---|
| 225/60R15 | 25.6" | 8.9" | 5.3" | +1.9% | |
| 215/65R15 | 26.0" | 8.5" | 5.5" | +3.4% | |
| 235/60R15 | 26.1" | 9.3" | 5.6" | +3.8% | |
| 205/70R15 | 26.3" | 8.1" | 5.6" | +4.5% | |
| 215/70R15 | 26.9" | 8.5" | 5.9" | +6.7% | |
| 195/55R15 | 23.4" | 7.7" | 4.2" | −6.8% | |
| 235/65R15 | 27.0" | 9.3" | 6.0" | +7.4% | |
| 225/70R15 | 27.4" | 8.9" | 6.2" | +8.9% | |
| 235/70R15 | 28.0" | 9.3" | 6.5" | +11.1% |
Sizes within 2% of 25.2" on 17" or 16" or 14" wheels.
| Size | Diameter | Width | Sidewall | vs 215/60R15 | |
|---|---|---|---|---|---|
| 255/40R17 | 25.0" | 10.0" | 4.0" | −0.5% | |
| 185/55R17 | 25.0" | 7.3" | 4.0" | −0.6% | |
| 225/50R16 | 24.9" | 8.9" | 4.4" | −1.2% | |
| 195/75R14 | 25.5" | 7.7" | 5.8" | +1.4% | |
| 195/70R14 | 24.7" | 7.7" | 5.4" | −1.6% | |
| 245/40R17 | 24.7" | 9.6" | 3.9" | −1.8% |
Actual speed when the speedometer is calibrated for 215/60R15.
| Speedometer shows | on 225/60R15 | on 215/65R15 | on 235/60R15 |
|---|---|---|---|
| 30 mph | 30.6 mph | 31.0 mph | 31.1 mph |
| 45 mph | 45.8 mph | 46.5 mph | 46.7 mph |
| 60 mph | 61.1 mph | 62.0 mph | 62.3 mph |
| 70 mph | 71.3 mph | 72.4 mph | 72.6 mph |
25.2 inches (639 mm). The sidewall is 5.1 inches.
8.5 inches (215 mm) section width, measured sidewall to sidewall.
About 25.2x8.5R15.
225/60R15 is +1.9% in diameter, within the common 3% guideline. It is 0.4" wider.