255/50R17 tire size in inches
A 255/50R17 tire measures
27.0" tall × 10.0" wide
5.02" sidewall on a 17" wheel. 746 revolutions per mile.
255/50R17 means a tire 255 mm wide, with sidewalls 50% as tall as the tire is wide (127 mm), radial construction (R), for a 17 inch wheel.
255/50R17 specs
| Overall diameter (height) | 27.04 inches (687 mm) |
|---|---|
| Section width | 10.04 inches (255 mm) |
| Sidewall height | 5.02 inches (127 mm) |
| Wheel (rim) diameter | 17 inches |
| Circumference | 84.9 inches (2,158 mm) |
| Revolutions per mile | 746 |
| Revolutions per kilometer | 463 |
| Approximate rim width | 7.5" to 9.0" |
| In inches (flotation style) | 27.0x10.0R17 |
| Aspect ratio | 50% |
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 255/50R17 on a 17" wheel
These 17" sizes are within 3% of 255/50R17's overall diameter, the range most tire shops treat as interchangeable.
| Size | Diameter | Width | Difference | Real speed at 60 | |
|---|---|---|---|---|---|
| 195/65R17 | 26.98" | 7.68" | −0.2% | 59.9 mph | Compare |
| 285/45R17 | 27.10" | 11.22" | +0.2% | 60.1 mph | Compare |
| 315/40R17 | 26.92" | 12.40" | −0.4% | 59.7 mph | Compare |
| 215/60R17 | 27.16" | 8.46" | +0.4% | 60.3 mph | Compare |
| 235/55R17 | 27.18" | 9.25" | +0.5% | 60.3 mph | Compare |
| 185/70R17 | 27.20" | 7.28" | +0.6% | 60.3 mph | Compare |
| 225/55R17 | 26.74" | 8.86" | −1.1% | 59.3 mph | Compare |
| 275/45R17 | 26.74" | 10.83" | −1.1% | 59.3 mph | Compare |
| 205/60R17 | 26.69" | 8.07" | −1.3% | 59.2 mph | Compare |
| 245/50R17 | 26.65" | 9.65" | −1.5% | 59.1 mph | Compare |
| 265/50R17 | 27.43" | 10.43" | +1.5% | 60.9 mph | Compare |
| 295/45R17 | 27.45" | 11.61" | +1.5% | 60.9 mph | Compare |
Same height on other wheel sizes (plus and minus sizing)
| Size | Wheel | Diameter | Difference | |
|---|---|---|---|---|
| 255/45R18 | 18" | 27.04" | 0.0% | Compare |
| 255/55R16 | 16" | 27.04" | 0.0% | Compare |
| 255/40R19 | 19" | 27.03" | 0.0% | Compare |
| 255/60R15 | 15" | 27.05" | 0.0% | Compare |
| 235/65R15 | 15" | 27.03" | 0.0% | Compare |
| 255/35R20 | 20" | 27.03" | 0.0% | Compare |
| 195/85R14 | 14" | 27.05" | 0.0% | Compare |
| 255/65R14 | 14" | 27.05" | 0.0% | Compare |
| 175/80R16 | 16" | 27.02" | −0.1% | Compare |
| 255/30R21 | 21" | 27.02" | −0.1% | Compare |
| 255/25R22 | 22" | 27.02" | −0.1% | Compare |
| 205/50R19 | 19" | 27.07" | +0.1% | Compare |
One size up or down
- 245/50R17narrower: 26.6" × 9.6"
- 265/50R17wider: 27.4" × 10.4"
- 255/45R17lower profile: 26.0" × 10.0"
- 255/55R17taller sidewall: 28.0" × 10.0"
Compare 255/50R17 with another size
Questions
- How tall is a 255/50R17 tire?
- A 255/50R17 tire is 27.0 inches tall (687 mm), calculated from the size. It is 10.0 inches wide with 5.0 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
- What does 255/50R17 mean?
- 255/50R17 means a tire 255 mm wide, with sidewalls 50% as tall as the tire is wide (127 mm), radial construction (R), for a 17 inch wheel.
- How many revolutions per mile does a 255/50R17 tire make?
- About 746 revolutions per mile, based on a circumference of 84.9 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
- What rim width fits a 255/50R17 tire?
- Roughly 7.5" to 9.0". Check the tire maker's approved rim range for the exact model before buying wheels.
- Can I use 195/65R17 instead of 255/50R17?
- 195/65R17 is −0.06 inches (−0.2%) in overall diameter, so at an indicated 60 mph you would be doing 59.9 mph. Differences under 3% are usually fine, but check clearance, load index and your vehicle's placard.