255/85R16 tire size in inches
A 255/85R16 tire measures
33.1" tall × 10.0" wide
8.53" sidewall on a 16" wheel. 610 revolutions per mile.
255/85R16 means a tire 255 mm wide, with sidewalls 85% as tall as the tire is wide (217 mm), radial construction (R), for a 16 inch wheel.
255/85R16 specs
| Overall diameter (height) | 33.07 inches (840 mm) |
|---|---|
| Section width | 10.04 inches (255 mm) |
| Sidewall height | 8.53 inches (217 mm) |
| Wheel (rim) diameter | 16 inches |
| Circumference | 103.9 inches (2,639 mm) |
| Revolutions per mile | 610 |
| Revolutions per kilometer | 379 |
| Approximate rim width | 7.0" to 8.5" |
| In inches (flotation style) | 33.1x10.0R16 |
| Aspect ratio | 85% |
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 255/85R16 on a 16" wheel
These 16" sizes are within 3% of 255/85R16's overall diameter, the range most tire shops treat as interchangeable.
| Size | Diameter | Width | Difference | Real speed at 60 | |
|---|---|---|---|---|---|
| 33x12.50R16 | 33.00" | 12.50" | −0.2% | 59.9 mph | Compare |
| 285/75R16 | 32.83" | 11.22" | −0.7% | 59.6 mph | Compare |
| 275/80R16 | 33.32" | 10.83" | +0.8% | 60.5 mph | Compare |
| 295/75R16 | 33.42" | 11.61" | +1.1% | 60.6 mph | Compare |
| 265/80R16 | 32.69" | 10.43" | −1.1% | 59.3 mph | Compare |
| 245/85R16 | 32.40" | 9.65" | −2.0% | 58.8 mph | Compare |
| 265/85R16 | 33.74" | 10.43" | +2.0% | 61.2 mph | Compare |
| 295/70R16 | 32.26" | 11.61" | −2.4% | 58.5 mph | Compare |
| 275/75R16 | 32.24" | 10.83" | −2.5% | 58.5 mph | Compare |
| 285/80R16 | 33.95" | 11.22" | +2.7% | 61.6 mph | Compare |
Same height on other wheel sizes (plus and minus sizing)
| Size | Wheel | Diameter | Difference | |
|---|---|---|---|---|
| 255/75R18 | 18" | 33.06" | 0.0% | Compare |
| 275/65R19 | 19" | 33.07" | 0.0% | Compare |
| 325/55R19 | 19" | 33.07" | 0.0% | Compare |
| 255/65R20 | 20" | 33.05" | 0.0% | Compare |
| 255/55R22 | 22" | 33.04" | −0.1% | Compare |
| 295/65R18 | 18" | 33.10" | +0.1% | Compare |
| 315/65R17 | 17" | 33.12" | +0.2% | Compare |
| 305/50R21 | 21" | 33.01" | −0.2% | Compare |
| 33x12.50R15 | 15" | 33.00" | −0.2% | Compare |
| 33x12.50R17 | 17" | 33.00" | −0.2% | Compare |
| 33x12.50R18 | 18" | 33.00" | −0.2% | Compare |
| 33x12.50R20 | 20" | 33.00" | −0.2% | Compare |
One size up or down
Compare 255/85R16 with another size
Questions
- How tall is a 255/85R16 tire?
- A 255/85R16 tire is 33.1 inches tall (840 mm), calculated from the size. It is 10.0 inches wide with 8.5 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
- What does 255/85R16 mean?
- 255/85R16 means a tire 255 mm wide, with sidewalls 85% as tall as the tire is wide (217 mm), radial construction (R), for a 16 inch wheel.
- How many revolutions per mile does a 255/85R16 tire make?
- About 610 revolutions per mile, based on a circumference of 103.9 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
- What rim width fits a 255/85R16 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 33x12.50R16 instead of 255/85R16?
- 33x12.50R16 is −0.07 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.