285/45R17 tire size in inches
A 285/45R17 tire measures
27.1" tall × 11.2" wide
5.05" sidewall on a 17" wheel. 744 revolutions per mile.
285/45R17 means a tire 285 mm wide, with sidewalls 45% as tall as the tire is wide (128 mm), radial construction (R), for a 17 inch wheel.
285/45R17 specs
| Overall diameter (height) | 27.10 inches (688 mm) |
|---|---|
| Section width | 11.22 inches (285 mm) |
| Sidewall height | 5.05 inches (128 mm) |
| Wheel (rim) diameter | 17 inches |
| Circumference | 85.1 inches (2,162 mm) |
| Revolutions per mile | 744 |
| Revolutions per kilometer | 462 |
| Approximate rim width | 9.5" to 11.0" |
| In inches (flotation style) | 27.1x11.2R17 |
| Aspect ratio | 45% |
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 285/45R17 on a 17" wheel
These 17" sizes are within 3% of 285/45R17's overall diameter, the range most tire shops treat as interchangeable.
| Size | Diameter | Width | Difference | Real speed at 60 | |
|---|---|---|---|---|---|
| 215/60R17 | 27.16" | 8.46" | +0.2% | 60.1 mph | Compare |
| 255/50R17 | 27.04" | 10.04" | −0.2% | 59.9 mph | Compare |
| 235/55R17 | 27.18" | 9.25" | +0.3% | 60.2 mph | Compare |
| 185/70R17 | 27.20" | 7.28" | +0.4% | 60.2 mph | Compare |
| 195/65R17 | 26.98" | 7.68" | −0.4% | 59.7 mph | Compare |
| 315/40R17 | 26.92" | 12.40" | −0.7% | 59.6 mph | Compare |
| 265/50R17 | 27.43" | 10.43" | +1.2% | 60.7 mph | Compare |
| 225/55R17 | 26.74" | 8.86" | −1.3% | 59.2 mph | Compare |
| 275/45R17 | 26.74" | 10.83" | −1.3% | 59.2 mph | Compare |
| 295/45R17 | 27.45" | 11.61" | +1.3% | 60.8 mph | Compare |
| 205/65R17 | 27.49" | 8.07" | +1.5% | 60.9 mph | Compare |
| 205/60R17 | 26.69" | 8.07" | −1.5% | 59.1 mph | Compare |
Same height on other wheel sizes (plus and minus sizing)
| Size | Wheel | Diameter | Difference | |
|---|---|---|---|---|
| 235/60R16 | 16" | 27.10" | 0.0% | Compare |
| 205/75R15 | 15" | 27.11" | 0.0% | Compare |
| 225/40R20 | 20" | 27.09" | 0.0% | Compare |
| 205/50R19 | 19" | 27.07" | −0.1% | Compare |
| 295/35R19 | 19" | 27.13" | +0.1% | Compare |
| 195/85R14 | 14" | 27.05" | −0.2% | Compare |
| 255/65R14 | 14" | 27.05" | −0.2% | Compare |
| 255/60R15 | 15" | 27.05" | −0.2% | Compare |
| 345/30R19 | 19" | 27.15" | +0.2% | Compare |
| 255/55R16 | 16" | 27.04" | −0.2% | Compare |
| 255/45R18 | 18" | 27.04" | −0.2% | Compare |
| 255/40R19 | 19" | 27.03" | −0.2% | Compare |
One size up or down
- 275/45R17narrower: 26.7" × 10.8"
- 295/45R17wider: 27.5" × 11.6"
- 285/40R17lower profile: 26.0" × 11.2"
- 285/50R17taller sidewall: 28.2" × 11.2"
Compare 285/45R17 with another size
Questions
- How tall is a 285/45R17 tire?
- A 285/45R17 tire is 27.1 inches tall (688 mm), calculated from the size. It is 11.2 inches wide with 5.0 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
- What does 285/45R17 mean?
- 285/45R17 means a tire 285 mm wide, with sidewalls 45% as tall as the tire is wide (128 mm), radial construction (R), for a 17 inch wheel.
- How many revolutions per mile does a 285/45R17 tire make?
- About 744 revolutions per mile, based on a circumference of 85.1 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
- What rim width fits a 285/45R17 tire?
- Roughly 9.5" to 11.0". Check the tire maker's approved rim range for the exact model before buying wheels.
- Can I use 215/60R17 instead of 285/45R17?
- 215/60R17 is +0.06 inches (+0.2%) in overall diameter, so at an indicated 60 mph you would be doing 60.1 mph. Differences under 3% are usually fine, but check clearance, load index and your vehicle's placard.