185/85R16 tire size in inches
A 185/85R16 tire measures
28.4" tall × 7.3" wide
6.19" sidewall on a 16" wheel. 711 revolutions per mile.
185/85R16 means a tire 185 mm wide, with sidewalls 85% as tall as the tire is wide (157 mm), radial construction (R), for a 16 inch wheel.
185/85R16 specs
| Overall diameter (height) | 28.38 inches (721 mm) |
|---|---|
| Section width | 7.28 inches (185 mm) |
| Sidewall height | 6.19 inches (157 mm) |
| Wheel (rim) diameter | 16 inches |
| Circumference | 89.2 inches (2,265 mm) |
| Revolutions per mile | 711 |
| Revolutions per kilometer | 442 |
| Approximate rim width | 5.0" to 6.5" |
| In inches (flotation style) | 28.4x7.3R16 |
| 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 185/85R16 on a 16" wheel
These 16" sizes are within 3% of 185/85R16's overall diameter, the range most tire shops treat as interchangeable.
| Size | Diameter | Width | Difference | Real speed at 60 | |
|---|---|---|---|---|---|
| 225/70R16 | 28.40" | 8.86" | +0.1% | 60.0 mph | Compare |
| 285/55R16 | 28.34" | 11.22" | −0.1% | 59.9 mph | Compare |
| 195/80R16 | 28.28" | 7.68" | −0.3% | 59.8 mph | Compare |
| 265/60R16 | 28.52" | 10.43" | +0.5% | 60.3 mph | Compare |
| 245/65R16 | 28.54" | 9.65" | +0.6% | 60.3 mph | Compare |
| 205/75R16 | 28.11" | 8.07" | −1.0% | 59.4 mph | Compare |
| 215/75R16 | 28.70" | 8.46" | +1.1% | 60.7 mph | Compare |
| 255/60R16 | 28.05" | 10.04" | −1.2% | 59.3 mph | Compare |
| 235/65R16 | 28.03" | 9.25" | −1.2% | 59.3 mph | Compare |
| 295/55R16 | 28.78" | 11.61" | +1.4% | 60.8 mph | Compare |
| 275/55R16 | 27.91" | 10.83" | −1.7% | 59.0 mph | Compare |
| 205/80R16 | 28.91" | 8.07" | +1.9% | 61.1 mph | Compare |
Same height on other wheel sizes (plus and minus sizing)
| Size | Wheel | Diameter | Difference | |
|---|---|---|---|---|
| 355/30R20 | 20" | 28.39" | 0.0% | Compare |
| 215/85R14 | 14" | 28.39" | 0.0% | Compare |
| 265/45R19 | 19" | 28.39" | 0.0% | Compare |
| 325/25R22 | 22" | 28.40" | +0.1% | Compare |
| 235/40R21 | 21" | 28.40" | +0.1% | Compare |
| 305/35R20 | 20" | 28.41" | +0.1% | Compare |
| 265/40R20 | 20" | 28.35" | −0.1% | Compare |
| 245/80R13 | 13" | 28.43" | +0.2% | Compare |
| 265/50R18 | 18" | 28.43" | +0.2% | Compare |
| 235/45R20 | 20" | 28.33" | −0.2% | Compare |
| 315/30R21 | 21" | 28.44" | +0.2% | Compare |
| 215/55R19 | 19" | 28.31" | −0.2% | Compare |
One size up or down
Compare 185/85R16 with another size
Questions
- How tall is a 185/85R16 tire?
- A 185/85R16 tire is 28.4 inches tall (721 mm), calculated from the size. It is 7.3 inches wide with 6.2 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
- What does 185/85R16 mean?
- 185/85R16 means a tire 185 mm wide, with sidewalls 85% as tall as the tire is wide (157 mm), radial construction (R), for a 16 inch wheel.
- How many revolutions per mile does a 185/85R16 tire make?
- About 711 revolutions per mile, based on a circumference of 89.2 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
- What rim width fits a 185/85R16 tire?
- Roughly 5.0" to 6.5". Check the tire maker's approved rim range for the exact model before buying wheels.
- Can I use 225/70R16 instead of 185/85R16?
- 225/70R16 is +0.02 inches (+0.1%) 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.