35.6" tall, 12.4" wide, 9.3" sidewall
A 315/75R17 tire is 35.6 inches (904 mm) tall and 12.4 inches wide. The sidewall is 75% of the width, 9.3 inches, on a 17-inch wheel, and the tire turns about 566 times per mile.
In flotation terms that is about 35.6x12.4R17. People often call it a 36-inch tire.
The size most often compared with it is 295/80R17, which is 0.0" shorter (−0.1%). At an indicated 60 mph you would be doing 60.0 mph on it.
| 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 315/75R17 | |
|---|---|---|---|---|---|
| 295/80R17 | 35.6" | 11.6" | 9.3" | −0.1% | |
| 305/75R17 | 35.0" | 12.0" | 9.0" | −1.7% | |
| 35x12.50R17 | 35.0" | 12.5" | 9.0" | −1.7% | |
| 325/70R17 | 34.9" | 12.8" | 9.0" | −1.9% | |
| 295/75R17 | 34.4" | 11.6" | 8.7" | −3.3% | |
| 315/70R17 | 34.4" | 12.4" | 8.7" | −3.5% | |
| 37x12.50R17 | 37.0" | 12.5" | 10.0" | +3.9% | |
| 305/70R17 | 33.8" | 12.0" | 8.4" | −5.0% | |
| 295/70R17 | 33.3" | 11.6" | 8.1" | −6.6% | |
| 315/65R17 | 33.1" | 12.4" | 8.1" | −7.0% |
Sizes within 2% of 35.6" on 18" or 19" or 16" wheels.
| Size | Diameter | Width | Sidewall | vs 315/75R17 | |
|---|---|---|---|---|---|
| 295/75R18 | 35.4" | 11.6" | 8.7" | −0.5% | |
| 305/70R19 | 35.8" | 12.0" | 8.4" | +0.6% | |
| 315/70R18 | 35.4" | 12.4" | 8.7" | −0.7% | |
| 315/80R16 | 35.8" | 12.4" | 9.9" | +0.7% | |
| 275/80R18 | 35.3" | 10.8" | 8.7" | −0.8% | |
| 325/70R18 | 35.9" | 12.8" | 9.0" | +0.9% |
Actual speed when the speedometer is calibrated for 315/75R17.
| Speedometer shows | on 295/80R17 | on 305/75R17 | on 35x12.50R17 |
|---|---|---|---|
| 30 mph | 30.0 mph | 29.5 mph | 29.5 mph |
| 45 mph | 45.0 mph | 44.3 mph | 44.2 mph |
| 60 mph | 60.0 mph | 59.0 mph | 59.0 mph |
| 70 mph | 70.0 mph | 68.8 mph | 68.8 mph |
35.6 inches (904 mm). The sidewall is 9.3 inches.
12.4 inches (315 mm) section width, measured sidewall to sidewall.
About 35.6x12.4R17.
295/80R17 is −0.1% in diameter, within the common 3% guideline. It is 0.8" narrower.