235/40R16 tire size in inches
A 235/40R16 tire measures
23.4" tall × 9.3" wide
3.70" sidewall on a 16" wheel. 862 revolutions per mile.
235/40R16 means a tire 235 mm wide, with sidewalls 40% as tall as the tire is wide (94 mm), radial construction (R), for a 16 inch wheel.
235/40R16 specs
| Overall diameter (height) | 23.40 inches (594 mm) |
|---|---|
| Section width | 9.25 inches (235 mm) |
| Sidewall height | 3.70 inches (94 mm) |
| Wheel (rim) diameter | 16 inches |
| Circumference | 73.5 inches (1,867 mm) |
| Revolutions per mile | 862 |
| Revolutions per kilometer | 536 |
| Approximate rim width | 7.5" to 9.0" |
| In inches (flotation style) | 23.4x9.3R16 |
| Aspect ratio | 40% |
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 235/40R16 on a 16" wheel
These 16" sizes are within 3% of 235/40R16's overall diameter, the range most tire shops treat as interchangeable.
| Size | Diameter | Width | Difference | Real speed at 60 | |
|---|---|---|---|---|---|
| 185/50R16 | 23.28" | 7.28" | −0.5% | 59.7 mph | Compare |
| 205/45R16 | 23.26" | 8.07" | −0.6% | 59.6 mph | Compare |
| 175/55R16 | 23.58" | 6.89" | +0.8% | 60.5 mph | Compare |
| 215/45R16 | 23.62" | 8.46" | +0.9% | 60.6 mph | Compare |
| 195/50R16 | 23.68" | 7.68" | +1.2% | 60.7 mph | Compare |
| 225/40R16 | 23.09" | 8.86" | −1.3% | 59.2 mph | Compare |
| 245/40R16 | 23.72" | 9.65" | +1.3% | 60.8 mph | Compare |
| 195/45R16 | 22.91" | 7.68" | −2.1% | 58.7 mph | Compare |
| 225/45R16 | 23.97" | 8.86" | +2.4% | 61.5 mph | Compare |
| 185/55R16 | 24.01" | 7.28" | +2.6% | 61.6 mph | Compare |
| 215/40R16 | 22.77" | 8.46" | −2.7% | 58.4 mph | Compare |
| 255/40R16 | 24.03" | 10.04" | +2.7% | 61.6 mph | Compare |
Same height on other wheel sizes (plus and minus sizing)
| Size | Wheel | Diameter | Difference | |
|---|---|---|---|---|
| 165/80R13 | 13" | 23.39" | 0.0% | Compare |
| 155/85R13 | 13" | 23.37" | −0.1% | Compare |
| 195/35R18 | 18" | 23.37" | −0.1% | Compare |
| 225/25R19 | 19" | 23.43" | +0.1% | Compare |
| 165/65R15 | 15" | 23.44" | +0.2% | Compare |
| 195/55R15 | 15" | 23.44" | +0.2% | Compare |
| 205/40R17 | 17" | 23.46" | +0.2% | Compare |
| 215/50R15 | 15" | 23.46" | +0.3% | Compare |
| 175/75R13 | 13" | 23.33" | −0.3% | Compare |
| 185/65R14 | 14" | 23.47" | +0.3% | Compare |
| 235/35R17 | 17" | 23.48" | +0.3% | Compare |
| 235/45R15 | 15" | 23.33" | −0.3% | Compare |
One size up or down
Compare 235/40R16 with another size
Questions
- How tall is a 235/40R16 tire?
- A 235/40R16 tire is 23.4 inches tall (594 mm), calculated from the size. It is 9.3 inches wide with 3.7 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
- What does 235/40R16 mean?
- 235/40R16 means a tire 235 mm wide, with sidewalls 40% as tall as the tire is wide (94 mm), radial construction (R), for a 16 inch wheel.
- How many revolutions per mile does a 235/40R16 tire make?
- About 862 revolutions per mile, based on a circumference of 73.5 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
- What rim width fits a 235/40R16 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 185/50R16 instead of 235/40R16?
- 185/50R16 is −0.12 inches (−0.5%) in overall diameter, so at an indicated 60 mph you would be doing 59.7 mph. Differences under 3% are usually fine, but check clearance, load index and your vehicle's placard.