235/40R22 tire size in inches
A 235/40R22 tire measures
29.4" tall × 9.3" wide
3.70" sidewall on a 22" wheel. 686 revolutions per mile.
235/40R22 means a tire 235 mm wide, with sidewalls 40% as tall as the tire is wide (94 mm), radial construction (R), for a 22 inch wheel.
235/40R22 specs
| Overall diameter (height) | 29.40 inches (747 mm) |
|---|---|
| Section width | 9.25 inches (235 mm) |
| Sidewall height | 3.70 inches (94 mm) |
| Wheel (rim) diameter | 22 inches |
| Circumference | 92.4 inches (2,346 mm) |
| Revolutions per mile | 686 |
| Revolutions per kilometer | 426 |
| Approximate rim width | 7.5" to 9.0" |
| In inches (flotation style) | 29.4x9.3R22 |
| 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 235/40R22 on a 22" wheel
These 22" sizes are within 3% of 235/40R22's overall diameter, the range most tire shops treat as interchangeable.
| Size | Diameter | Width | Difference | Real speed at 60 | |
|---|---|---|---|---|---|
| 315/30R22 | 29.44" | 12.40" | +0.1% | 60.1 mph | Compare |
| 265/35R22 | 29.30" | 10.43" | −0.3% | 59.8 mph | Compare |
| 275/35R22 | 29.58" | 10.83" | +0.6% | 60.4 mph | Compare |
| 305/30R22 | 29.20" | 12.01" | −0.7% | 59.6 mph | Compare |
| 325/30R22 | 29.68" | 12.80" | +0.9% | 60.6 mph | Compare |
| 245/40R22 | 29.72" | 9.65" | +1.1% | 60.6 mph | Compare |
| 255/35R22 | 29.03" | 10.04" | −1.3% | 59.2 mph | Compare |
| 355/25R22 | 28.99" | 13.98" | −1.4% | 59.2 mph | Compare |
| 295/30R22 | 28.97" | 11.61" | −1.5% | 59.1 mph | Compare |
| 285/35R22 | 29.85" | 11.22" | +1.5% | 60.9 mph | Compare |
| 335/30R22 | 29.91" | 13.19" | +1.7% | 61.0 mph | Compare |
| 345/25R22 | 28.79" | 13.58" | −2.1% | 58.8 mph | Compare |
Same height on other wheel sizes (plus and minus sizing)
| Size | Wheel | Diameter | Difference | |
|---|---|---|---|---|
| 225/70R17 | 17" | 29.40" | 0.0% | Compare |
| 315/50R17 | 17" | 29.40" | 0.0% | Compare |
| 245/85R13 | 13" | 29.40" | 0.0% | Compare |
| 305/35R21 | 21" | 29.41" | 0.0% | Compare |
| 275/25R24 | 24" | 29.41" | 0.0% | Compare |
| 215/85R15 | 15" | 29.39" | 0.0% | Compare |
| 265/45R20 | 20" | 29.39" | 0.0% | Compare |
| 355/30R21 | 21" | 29.39" | −0.1% | Compare |
| 245/80R14 | 14" | 29.43" | +0.1% | Compare |
| 265/50R19 | 19" | 29.43" | +0.1% | Compare |
| 295/45R19 | 19" | 29.45" | +0.2% | Compare |
| 265/40R21 | 21" | 29.35" | −0.2% | Compare |
One size up or down
- 245/40R22wider: 29.7" × 9.6"
- 235/35R22lower profile: 28.5" × 9.3"
- 235/45R22taller sidewall: 30.3" × 9.3"
Compare 235/40R22 with another size
Questions
- How tall is a 235/40R22 tire?
- A 235/40R22 tire is 29.4 inches tall (747 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 235/40R22 mean?
- 235/40R22 means a tire 235 mm wide, with sidewalls 40% as tall as the tire is wide (94 mm), radial construction (R), for a 22 inch wheel.
- How many revolutions per mile does a 235/40R22 tire make?
- About 686 revolutions per mile, based on a circumference of 92.4 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
- What rim width fits a 235/40R22 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 315/30R22 instead of 235/40R22?
- 315/30R22 is +0.04 inches (+0.1%) in overall diameter, so at an indicated 60 mph you would be doing 60.1 mph. Differences under 3% are usually fine, but check clearance, load index and your vehicle's placard.