315/55R17 tire size in inches
A 315/55R17 tire measures
30.6" tall × 12.4" wide
6.82" sidewall on a 17" wheel. 658 revolutions per mile.
315/55R17 means a tire 315 mm wide, with sidewalls 55% as tall as the tire is wide (173 mm), radial construction (R), for a 17 inch wheel.
315/55R17 specs
| Overall diameter (height) | 30.64 inches (778 mm) |
|---|---|
| Section width | 12.40 inches (315 mm) |
| Sidewall height | 6.82 inches (173 mm) |
| Wheel (rim) diameter | 17 inches |
| Circumference | 96.3 inches (2,445 mm) |
| Revolutions per mile | 658 |
| Revolutions per kilometer | 409 |
| Approximate rim width | 9.0" to 10.5" |
| In inches (flotation style) | 30.6x12.4R17 |
| Aspect ratio | 55% |
Calculated from the size. Real tires differ by brand, model and tread depth, typically by a few tenths of an inch.
Sizes that can replace 315/55R17 on a 17" wheel
These 17" sizes are within 3% of 315/55R17's overall diameter, the range most tire shops treat as interchangeable.
| Size | Diameter | Width | Difference | Real speed at 60 | |
|---|---|---|---|---|---|
| 265/65R17 | 30.56" | 10.43" | −0.3% | 59.8 mph | Compare |
| 245/70R17 | 30.50" | 9.65" | −0.4% | 59.7 mph | Compare |
| 285/60R17 | 30.46" | 11.22" | −0.6% | 59.7 mph | Compare |
| 235/75R17 | 30.88" | 9.25" | +0.8% | 60.5 mph | Compare |
| 295/60R17 | 30.94" | 11.61" | +1.0% | 60.6 mph | Compare |
| 225/75R17 | 30.29" | 8.86" | −1.2% | 59.3 mph | Compare |
| 255/70R17 | 31.06" | 10.04" | +1.3% | 60.8 mph | Compare |
| 275/65R17 | 31.07" | 10.83" | +1.4% | 60.8 mph | Compare |
| 305/55R17 | 30.21" | 12.01" | −1.4% | 59.2 mph | Compare |
| 255/65R17 | 30.05" | 10.04" | −1.9% | 58.8 mph | Compare |
| 275/60R17 | 29.99" | 10.83" | −2.1% | 58.7 mph | Compare |
| 235/70R17 | 29.95" | 9.25" | −2.2% | 58.7 mph | Compare |
Same height on other wheel sizes (plus and minus sizing)
| Size | Wheel | Diameter | Difference | |
|---|---|---|---|---|
| 245/50R21 | 21" | 30.65" | 0.0% | Compare |
| 265/75R15 | 15" | 30.65" | 0.0% | Compare |
| 225/60R20 | 20" | 30.63" | 0.0% | Compare |
| 275/40R22 | 22" | 30.66" | +0.1% | Compare |
| 295/50R19 | 19" | 30.61" | −0.1% | Compare |
| 245/55R20 | 20" | 30.61" | −0.1% | Compare |
| 265/70R16 | 16" | 30.61" | −0.1% | Compare |
| 305/40R21 | 21" | 30.61" | −0.1% | Compare |
| 245/45R22 | 22" | 30.68" | +0.1% | Compare |
| 315/35R22 | 22" | 30.68" | +0.1% | Compare |
| 335/25R24 | 24" | 30.59" | −0.2% | Compare |
| 265/80R14 | 14" | 30.69" | +0.2% | Compare |
One size up or down
- 305/55R17narrower: 30.2" × 12.0"
- 315/50R17lower profile: 29.4" × 12.4"
- 315/60R17taller sidewall: 31.9" × 12.4"
Compare 315/55R17 with another size
Questions
- How tall is a 315/55R17 tire?
- A 315/55R17 tire is 30.6 inches tall (778 mm), calculated from the size. It is 12.4 inches wide with 6.8 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
- What does 315/55R17 mean?
- 315/55R17 means a tire 315 mm wide, with sidewalls 55% as tall as the tire is wide (173 mm), radial construction (R), for a 17 inch wheel.
- How many revolutions per mile does a 315/55R17 tire make?
- About 658 revolutions per mile, based on a circumference of 96.3 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
- What rim width fits a 315/55R17 tire?
- Roughly 9.0" to 10.5". Check the tire maker's approved rim range for the exact model before buying wheels.
- Can I use 265/65R17 instead of 315/55R17?
- 265/65R17 is −0.08 inches (−0.3%) in overall diameter, so at an indicated 60 mph you would be doing 59.8 mph. Differences under 3% are usually fine, but check clearance, load index and your vehicle's placard.