225/45R17 tire size in inches
A 225/45R17 tire measures
25.0" tall × 8.9" wide
3.99" sidewall on a 17" wheel. 808 revolutions per mile.
225/45R17 means a tire 225 mm wide, with sidewalls 45% as tall as the tire is wide (101 mm), radial construction (R), for a 17 inch wheel.
225/45R17 specs
| Overall diameter (height) | 24.97 inches (634 mm) |
|---|---|
| Section width | 8.86 inches (225 mm) |
| Sidewall height | 3.99 inches (101 mm) |
| Wheel (rim) diameter | 17 inches |
| Circumference | 78.5 inches (1,993 mm) |
| Revolutions per mile | 808 |
| Revolutions per kilometer | 502 |
| Approximate rim width | 7.5" to 9.0" |
| In inches (flotation style) | 25.0x8.9R17 |
| 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 225/45R17 on a 17" wheel
These 17" sizes are within 3% of 225/45R17's overall diameter, the range most tire shops treat as interchangeable.
| Size | Diameter | Width | Difference | Real speed at 60 | |
|---|---|---|---|---|---|
| 185/55R17 | 25.01" | 7.28" | +0.2% | 60.1 mph | Compare |
| 255/40R17 | 25.03" | 10.04" | +0.2% | 60.1 mph | Compare |
| 205/50R17 | 25.07" | 8.07" | +0.4% | 60.2 mph | Compare |
| 285/35R17 | 24.85" | 11.22" | −0.5% | 59.7 mph | Compare |
| 295/35R17 | 25.13" | 11.61" | +0.6% | 60.4 mph | Compare |
| 245/40R17 | 24.72" | 9.65" | −1.0% | 59.4 mph | Compare |
| 195/50R17 | 24.68" | 7.68" | −1.2% | 59.3 mph | Compare |
| 215/45R17 | 24.62" | 8.46" | −1.4% | 59.1 mph | Compare |
| 235/45R17 | 25.33" | 9.25" | +1.4% | 60.9 mph | Compare |
| 265/40R17 | 25.35" | 10.43" | +1.5% | 60.9 mph | Compare |
| 275/35R17 | 24.58" | 10.83" | −1.6% | 59.1 mph | Compare |
| 305/35R17 | 25.41" | 12.01" | +1.7% | 61.0 mph | Compare |
Same height on other wheel sizes (plus and minus sizing)
| Size | Wheel | Diameter | Difference | |
|---|---|---|---|---|
| 285/40R16 | 16" | 24.98" | 0.0% | Compare |
| 195/65R15 | 15" | 24.98" | 0.0% | Compare |
| 175/65R16 | 16" | 24.96" | −0.1% | Compare |
| 215/65R14 | 14" | 25.00" | +0.1% | Compare |
| 305/25R19 | 19" | 25.00" | +0.1% | Compare |
| 185/75R14 | 14" | 24.93" | −0.2% | Compare |
| 215/35R19 | 19" | 24.93" | −0.2% | Compare |
| 255/25R20 | 20" | 25.02" | +0.2% | Compare |
| 175/80R14 | 14" | 25.02" | +0.2% | Compare |
| 255/30R19 | 19" | 25.02" | +0.2% | Compare |
| 235/65R13 | 13" | 25.03" | +0.2% | Compare |
| 255/35R18 | 18" | 25.03" | +0.2% | Compare |
One size up or down
- 215/45R17narrower: 24.6" × 8.5"
- 235/45R17wider: 25.3" × 9.3"
- 225/40R17lower profile: 24.1" × 8.9"
- 225/50R17taller sidewall: 25.9" × 8.9"
Compare 225/45R17 with another size
Questions
- How tall is a 225/45R17 tire?
- A 225/45R17 tire is 25.0 inches tall (634 mm), calculated from the size. It is 8.9 inches wide with 4.0 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
- What does 225/45R17 mean?
- 225/45R17 means a tire 225 mm wide, with sidewalls 45% as tall as the tire is wide (101 mm), radial construction (R), for a 17 inch wheel.
- How many revolutions per mile does a 225/45R17 tire make?
- About 808 revolutions per mile, based on a circumference of 78.5 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
- What rim width fits a 225/45R17 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 185/55R17 instead of 225/45R17?
- 185/55R17 is +0.04 inches (+0.2%) 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.