255/65R15 tire size in inches
A 255/65R15 tire measures
28.1" tall × 10.0" wide
6.53" sidewall on a 15" wheel. 719 revolutions per mile.
255/65R15 means a tire 255 mm wide, with sidewalls 65% as tall as the tire is wide (166 mm), radial construction (R), for a 15 inch wheel.
255/65R15 specs
| Overall diameter (height) | 28.05 inches (713 mm) |
|---|---|
| Section width | 10.04 inches (255 mm) |
| Sidewall height | 6.53 inches (166 mm) |
| Wheel (rim) diameter | 15 inches |
| Circumference | 88.1 inches (2,238 mm) |
| Revolutions per mile | 719 |
| Revolutions per kilometer | 447 |
| Approximate rim width | 7.0" to 8.5" |
| In inches (flotation style) | 28.1x10.0R15 |
| Aspect ratio | 65% |
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 255/65R15 on a 15" wheel
These 15" sizes are within 3% of 255/65R15's overall diameter, the range most tire shops treat as interchangeable.
| Size | Diameter | Width | Difference | Real speed at 60 | |
|---|---|---|---|---|---|
| 195/85R15 | 28.05" | 7.68" | 0.0% | 60.0 mph | Compare |
| 275/60R15 | 27.99" | 10.83" | −0.2% | 59.9 mph | Compare |
| 235/70R15 | 27.95" | 9.25" | −0.4% | 59.8 mph | Compare |
| 205/80R15 | 27.91" | 8.07" | −0.5% | 59.7 mph | Compare |
| 225/75R15 | 28.29" | 8.86" | +0.8% | 60.5 mph | Compare |
| 215/75R15 | 27.70" | 8.46" | −1.3% | 59.2 mph | Compare |
| 285/60R15 | 28.46" | 11.22" | +1.5% | 60.9 mph | Compare |
| 245/70R15 | 28.50" | 9.65" | +1.6% | 61.0 mph | Compare |
| 215/80R15 | 28.54" | 8.46" | +1.8% | 61.1 mph | Compare |
| 265/65R15 | 28.56" | 10.43" | +1.8% | 61.1 mph | Compare |
| 245/65R15 | 27.54" | 9.65" | −1.8% | 58.9 mph | Compare |
| 265/60R15 | 27.52" | 10.43" | −1.9% | 58.9 mph | Compare |
Same height on other wheel sizes (plus and minus sizing)
| Size | Wheel | Diameter | Difference | |
|---|---|---|---|---|
| 255/70R14 | 14" | 28.06" | 0.0% | Compare |
| 255/60R16 | 16" | 28.05" | 0.0% | Compare |
| 225/85R13 | 13" | 28.06" | 0.0% | Compare |
| 255/55R17 | 17" | 28.04" | 0.0% | Compare |
| 255/50R18 | 18" | 28.04" | 0.0% | Compare |
| 255/45R19 | 19" | 28.04" | −0.1% | Compare |
| 255/40R20 | 20" | 28.03" | −0.1% | Compare |
| 235/65R16 | 16" | 28.03" | −0.1% | Compare |
| 255/35R21 | 21" | 28.03" | −0.1% | Compare |
| 255/30R22 | 22" | 28.02" | −0.1% | Compare |
| 225/40R21 | 21" | 28.09" | +0.1% | Compare |
| 285/45R18 | 18" | 28.10" | +0.2% | Compare |
One size up or down
- 245/65R15narrower: 27.5" × 9.6"
- 265/65R15wider: 28.6" × 10.4"
- 255/60R15lower profile: 27.0" × 10.0"
- 255/70R15taller sidewall: 29.1" × 10.0"
Compare 255/65R15 with another size
Questions
- How tall is a 255/65R15 tire?
- A 255/65R15 tire is 28.1 inches tall (713 mm), calculated from the size. It is 10.0 inches wide with 6.5 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
- What does 255/65R15 mean?
- 255/65R15 means a tire 255 mm wide, with sidewalls 65% as tall as the tire is wide (166 mm), radial construction (R), for a 15 inch wheel.
- How many revolutions per mile does a 255/65R15 tire make?
- About 719 revolutions per mile, based on a circumference of 88.1 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
- What rim width fits a 255/65R15 tire?
- Roughly 7.0" to 8.5". Check the tire maker's approved rim range for the exact model before buying wheels.
- Can I use 195/85R15 instead of 255/65R15?
- 195/85R15 is 0.00 inches (0.0%) in overall diameter, so at an indicated 60 mph you would be doing 60.0 mph. Differences under 3% are usually fine, but check clearance, load index and your vehicle's placard.