245/45R22 tire size in inches
A 245/45R22 tire measures
30.7" tall × 9.6" wide
4.34" sidewall on a 22" wheel. 657 revolutions per mile.
245/45R22 means a tire 245 mm wide, with sidewalls 45% as tall as the tire is wide (110 mm), radial construction (R), for a 22 inch wheel.
245/45R22 specs
| Overall diameter (height) | 30.68 inches (779 mm) |
|---|---|
| Section width | 9.65 inches (245 mm) |
| Sidewall height | 4.34 inches (110 mm) |
| Wheel (rim) diameter | 22 inches |
| Circumference | 96.4 inches (2,448 mm) |
| Revolutions per mile | 657 |
| Revolutions per kilometer | 408 |
| Approximate rim width | 8.0" to 9.5" |
| In inches (flotation style) | 30.7x9.6R22 |
| Aspect ratio | 45% |
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 245/45R22 on a 22" wheel
These 22" sizes are within 3% of 245/45R22's overall diameter, the range most tire shops treat as interchangeable.
| Size | Diameter | Width | Difference | Real speed at 60 | |
|---|---|---|---|---|---|
| 315/35R22 | 30.68" | 12.40" | 0.0% | 60.0 mph | Compare |
| 275/40R22 | 30.66" | 10.83" | −0.1% | 60.0 mph | Compare |
| 305/35R22 | 30.41" | 12.01" | −0.9% | 59.5 mph | Compare |
| 325/35R22 | 30.96" | 12.80" | +0.9% | 60.5 mph | Compare |
| 285/40R22 | 30.98" | 11.22" | +1.0% | 60.6 mph | Compare |
| 355/30R22 | 30.39" | 13.98" | −1.0% | 59.4 mph | Compare |
| 265/40R22 | 30.35" | 10.43" | −1.1% | 59.3 mph | Compare |
| 255/45R22 | 31.04" | 10.04" | +1.2% | 60.7 mph | Compare |
| 235/45R22 | 30.33" | 9.25" | −1.2% | 59.3 mph | Compare |
| 345/30R22 | 30.15" | 13.58" | −1.7% | 59.0 mph | Compare |
| 335/35R22 | 31.23" | 13.19" | +1.8% | 61.1 mph | Compare |
| 295/35R22 | 30.13" | 11.61" | −1.8% | 58.9 mph | Compare |
Same height on other wheel sizes (plus and minus sizing)
| Size | Wheel | Diameter | Difference | |
|---|---|---|---|---|
| 265/80R14 | 14" | 30.69" | 0.0% | Compare |
| 215/75R18 | 18" | 30.70" | +0.1% | Compare |
| 285/70R15 | 15" | 30.71" | +0.1% | Compare |
| 265/75R15 | 15" | 30.65" | −0.1% | Compare |
| 245/50R21 | 21" | 30.65" | −0.1% | Compare |
| 315/55R17 | 17" | 30.64" | −0.1% | Compare |
| 235/85R15 | 15" | 30.73" | +0.2% | Compare |
| 285/30R24 | 24" | 30.73" | +0.2% | Compare |
| 225/60R20 | 20" | 30.63" | −0.2% | Compare |
| 225/55R21 | 21" | 30.74" | +0.2% | Compare |
| 275/45R21 | 21" | 30.74" | +0.2% | Compare |
| 295/50R19 | 19" | 30.61" | −0.2% | Compare |
One size up or down
- 235/45R22narrower: 30.3" × 9.3"
- 255/45R22wider: 31.0" × 10.0"
- 245/40R22lower profile: 29.7" × 9.6"
- 245/50R22taller sidewall: 31.6" × 9.6"
Compare 245/45R22 with another size
Questions
- How tall is a 245/45R22 tire?
- A 245/45R22 tire is 30.7 inches tall (779 mm), calculated from the size. It is 9.6 inches wide with 4.3 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
- What does 245/45R22 mean?
- 245/45R22 means a tire 245 mm wide, with sidewalls 45% as tall as the tire is wide (110 mm), radial construction (R), for a 22 inch wheel.
- How many revolutions per mile does a 245/45R22 tire make?
- About 657 revolutions per mile, based on a circumference of 96.4 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
- What rim width fits a 245/45R22 tire?
- Roughly 8.0" to 9.5". Check the tire maker's approved rim range for the exact model before buying wheels.
- Can I use 315/35R22 instead of 245/45R22?
- 315/35R22 is 0.00 inches (0.0%) 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.