225/40R16 tire size in inches
A 225/40R16 tire measures
23.1" tall × 8.9" wide
3.54" sidewall on a 16" wheel. 874 revolutions per mile.
225/40R16 means a tire 225 mm wide, with sidewalls 40% as tall as the tire is wide (90 mm), radial construction (R), for a 16 inch wheel.
225/40R16 specs
| Overall diameter (height) | 23.09 inches (586 mm) |
|---|---|
| Section width | 8.86 inches (225 mm) |
| Sidewall height | 3.54 inches (90 mm) |
| Wheel (rim) diameter | 16 inches |
| Circumference | 72.5 inches (1,842 mm) |
| Revolutions per mile | 874 |
| Revolutions per kilometer | 543 |
| Approximate rim width | 7.5" to 9.0" |
| In inches (flotation style) | 23.1x8.9R16 |
| 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 225/40R16 on a 16" wheel
These 16" sizes are within 3% of 225/40R16's overall diameter, the range most tire shops treat as interchangeable.
| Size | Diameter | Width | Difference | Real speed at 60 | |
|---|---|---|---|---|---|
| 205/45R16 | 23.26" | 8.07" | +0.8% | 60.5 mph | Compare |
| 195/45R16 | 22.91" | 7.68" | −0.8% | 59.5 mph | Compare |
| 185/50R16 | 23.28" | 7.28" | +0.9% | 60.5 mph | Compare |
| 215/40R16 | 22.77" | 8.46" | −1.4% | 59.2 mph | Compare |
| 235/40R16 | 23.40" | 9.25" | +1.4% | 60.8 mph | Compare |
| 175/55R16 | 23.58" | 6.89" | +2.1% | 61.3 mph | Compare |
| 185/45R16 | 22.56" | 7.28" | −2.3% | 58.6 mph | Compare |
| 215/45R16 | 23.62" | 8.46" | +2.3% | 61.4 mph | Compare |
| 195/50R16 | 23.68" | 7.68" | +2.6% | 61.5 mph | Compare |
| 245/40R16 | 23.72" | 9.65" | +2.7% | 61.6 mph | Compare |
| 205/40R16 | 22.46" | 8.07" | −2.7% | 58.4 mph | Compare |
Same height on other wheel sizes (plus and minus sizing)
| Size | Wheel | Diameter | Difference | |
|---|---|---|---|---|
| 165/70R14 | 14" | 23.09" | 0.0% | Compare |
| 205/50R15 | 15" | 23.07" | −0.1% | Compare |
| 205/25R19 | 19" | 23.04" | −0.2% | Compare |
| 195/40R17 | 17" | 23.14" | +0.2% | Compare |
| 155/75R14 | 14" | 23.15" | +0.3% | Compare |
| 215/60R13 | 13" | 23.16" | +0.3% | Compare |
| 185/55R15 | 15" | 23.01" | −0.3% | Compare |
| 195/65R13 | 13" | 22.98" | −0.5% | Compare |
| 185/70R13 | 13" | 23.20" | +0.5% | Compare |
| 225/35R17 | 17" | 23.20" | +0.5% | Compare |
| 225/45R15 | 15" | 22.97" | −0.5% | Compare |
| 195/60R14 | 14" | 23.21" | +0.5% | Compare |
One size up or down
Compare 225/40R16 with another size
Questions
- How tall is a 225/40R16 tire?
- A 225/40R16 tire is 23.1 inches tall (586 mm), calculated from the size. It is 8.9 inches wide with 3.5 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
- What does 225/40R16 mean?
- 225/40R16 means a tire 225 mm wide, with sidewalls 40% as tall as the tire is wide (90 mm), radial construction (R), for a 16 inch wheel.
- How many revolutions per mile does a 225/40R16 tire make?
- About 874 revolutions per mile, based on a circumference of 72.5 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
- What rim width fits a 225/40R16 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 205/45R16 instead of 225/40R16?
- 205/45R16 is +0.18 inches (+0.8%) in overall diameter, so at an indicated 60 mph you would be doing 60.5 mph. Differences under 3% are usually fine, but check clearance, load index and your vehicle's placard.