185/65R16 tire size in inches
A 185/65R16 tire measures
25.5" tall × 7.3" wide
4.73" sidewall on a 16" wheel. 792 revolutions per mile.
185/65R16 means a tire 185 mm wide, with sidewalls 65% as tall as the tire is wide (120 mm), radial construction (R), for a 16 inch wheel.
185/65R16 specs
| Overall diameter (height) | 25.47 inches (647 mm) |
|---|---|
| Section width | 7.28 inches (185 mm) |
| Sidewall height | 4.73 inches (120 mm) |
| Wheel (rim) diameter | 16 inches |
| Circumference | 80.0 inches (2,032 mm) |
| Revolutions per mile | 792 |
| Revolutions per kilometer | 492 |
| Approximate rim width | 5.0" to 6.5" |
| In inches (flotation style) | 25.5x7.3R16 |
| 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 185/65R16 on a 16" wheel
These 16" sizes are within 3% of 185/65R16's overall diameter, the range most tire shops treat as interchangeable.
| Size | Diameter | Width | Difference | Real speed at 60 | |
|---|---|---|---|---|---|
| 265/45R16 | 25.39" | 10.43" | −0.3% | 59.8 mph | Compare |
| 215/55R16 | 25.31" | 8.46" | −0.6% | 59.6 mph | Compare |
| 295/40R16 | 25.29" | 11.61" | −0.7% | 59.6 mph | Compare |
| 175/70R16 | 25.65" | 6.89" | +0.7% | 60.4 mph | Compare |
| 245/50R16 | 25.65" | 9.65" | +0.7% | 60.4 mph | Compare |
| 205/60R16 | 25.69" | 8.07" | +0.9% | 60.5 mph | Compare |
| 235/50R16 | 25.25" | 9.25" | −0.9% | 59.5 mph | Compare |
| 195/60R16 | 25.21" | 7.68" | −1.0% | 59.4 mph | Compare |
| 225/55R16 | 25.74" | 8.86" | +1.1% | 60.6 mph | Compare |
| 275/45R16 | 25.74" | 10.83" | +1.1% | 60.6 mph | Compare |
| 255/45R16 | 25.04" | 10.04" | −1.7% | 59.0 mph | Compare |
| 285/40R16 | 24.98" | 11.22" | −1.9% | 58.8 mph | Compare |
Same height on other wheel sizes (plus and minus sizing)
| Size | Wheel | Diameter | Difference | |
|---|---|---|---|---|
| 215/50R17 | 17" | 25.46" | 0.0% | Compare |
| 235/35R19 | 19" | 25.48" | 0.0% | Compare |
| 265/55R14 | 14" | 25.48" | 0.0% | Compare |
| 205/40R19 | 19" | 25.46" | 0.0% | Compare |
| 195/55R17 | 17" | 25.44" | −0.1% | Compare |
| 205/65R15 | 15" | 25.49" | +0.1% | Compare |
| 275/30R19 | 19" | 25.50" | +0.1% | Compare |
| 265/50R15 | 15" | 25.43" | −0.1% | Compare |
| 225/25R21 | 21" | 25.43" | −0.2% | Compare |
| 195/75R14 | 14" | 25.52" | +0.2% | Compare |
| 225/65R14 | 14" | 25.52" | +0.2% | Compare |
| 275/25R20 | 20" | 25.41" | −0.2% | Compare |
One size up or down
- 175/65R16narrower: 25.0" × 6.9"
- 195/65R16wider: 26.0" × 7.7"
- 185/60R16lower profile: 24.7" × 7.3"
- 185/70R16taller sidewall: 26.2" × 7.3"
Compare 185/65R16 with another size
Questions
- How tall is a 185/65R16 tire?
- A 185/65R16 tire is 25.5 inches tall (647 mm), calculated from the size. It is 7.3 inches wide with 4.7 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
- What does 185/65R16 mean?
- 185/65R16 means a tire 185 mm wide, with sidewalls 65% as tall as the tire is wide (120 mm), radial construction (R), for a 16 inch wheel.
- How many revolutions per mile does a 185/65R16 tire make?
- About 792 revolutions per mile, based on a circumference of 80.0 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
- What rim width fits a 185/65R16 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 265/45R16 instead of 185/65R16?
- 265/45R16 is −0.08 inches (−0.3%) in overall diameter, so at an indicated 60 mph you would be doing 59.8 mph. Differences under 3% are usually fine, but check clearance, load index and your vehicle's placard.