205/45R17 tire size in inches
A 205/45R17 tire measures
24.3" tall × 8.1" wide
3.63" sidewall on a 17" wheel. 831 revolutions per mile.
205/45R17 means a tire 205 mm wide, with sidewalls 45% as tall as the tire is wide (92 mm), radial construction (R), for a 17 inch wheel.
205/45R17 specs
| Overall diameter (height) | 24.26 inches (616 mm) |
|---|---|
| Section width | 8.07 inches (205 mm) |
| Sidewall height | 3.63 inches (92 mm) |
| Wheel (rim) diameter | 17 inches |
| Circumference | 76.2 inches (1,936 mm) |
| Revolutions per mile | 831 |
| Revolutions per kilometer | 516 |
| Approximate rim width | 6.5" to 8.0" |
| In inches (flotation style) | 24.3x8.1R17 |
| 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 205/45R17 on a 17" wheel
These 17" sizes are within 3% of 205/45R17's overall diameter, the range most tire shops treat as interchangeable.
| Size | Diameter | Width | Difference | Real speed at 60 | |
|---|---|---|---|---|---|
| 185/50R17 | 24.28" | 7.28" | +0.1% | 60.0 mph | Compare |
| 265/35R17 | 24.30" | 10.43" | +0.2% | 60.1 mph | Compare |
| 235/40R17 | 24.40" | 9.25" | +0.6% | 60.3 mph | Compare |
| 225/40R17 | 24.09" | 8.86" | −0.7% | 59.6 mph | Compare |
| 255/35R17 | 24.03" | 10.04" | −1.0% | 59.4 mph | Compare |
| 275/35R17 | 24.58" | 10.83" | +1.3% | 60.8 mph | Compare |
| 195/45R17 | 23.91" | 7.68" | −1.5% | 59.1 mph | Compare |
| 215/45R17 | 24.62" | 8.46" | +1.5% | 60.9 mph | Compare |
| 195/50R17 | 24.68" | 7.68" | +1.7% | 61.0 mph | Compare |
| 245/40R17 | 24.72" | 9.65" | +1.9% | 61.1 mph | Compare |
| 215/40R17 | 23.77" | 8.46" | −2.0% | 58.8 mph | Compare |
| 245/35R17 | 23.75" | 9.65" | −2.1% | 58.7 mph | Compare |
Same height on other wheel sizes (plus and minus sizing)
| Size | Wheel | Diameter | Difference | |
|---|---|---|---|---|
| 175/60R16 | 16" | 24.27" | 0.0% | Compare |
| 235/50R15 | 15" | 24.25" | 0.0% | Compare |
| 215/25R20 | 20" | 24.23" | −0.1% | Compare |
| 205/70R13 | 13" | 24.30" | +0.1% | Compare |
| 215/55R15 | 15" | 24.31" | +0.2% | Compare |
| 265/25R19 | 19" | 24.22" | −0.2% | Compare |
| 195/60R15 | 15" | 24.21" | −0.2% | Compare |
| 225/30R19 | 19" | 24.31" | +0.2% | Compare |
| 225/35R18 | 18" | 24.20" | −0.3% | Compare |
| 235/45R16 | 16" | 24.33" | +0.3% | Compare |
| 185/70R14 | 14" | 24.20" | −0.3% | Compare |
| 175/75R14 | 14" | 24.33" | +0.3% | Compare |
One size up or down
- 195/45R17narrower: 23.9" × 7.7"
- 215/45R17wider: 24.6" × 8.5"
- 205/40R17lower profile: 23.5" × 8.1"
- 205/50R17taller sidewall: 25.1" × 8.1"
Compare 205/45R17 with another size
Questions
- How tall is a 205/45R17 tire?
- A 205/45R17 tire is 24.3 inches tall (616 mm), calculated from the size. It is 8.1 inches wide with 3.6 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
- What does 205/45R17 mean?
- 205/45R17 means a tire 205 mm wide, with sidewalls 45% as tall as the tire is wide (92 mm), radial construction (R), for a 17 inch wheel.
- How many revolutions per mile does a 205/45R17 tire make?
- About 831 revolutions per mile, based on a circumference of 76.2 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
- What rim width fits a 205/45R17 tire?
- Roughly 6.5" to 8.0". Check the tire maker's approved rim range for the exact model before buying wheels.
- Can I use 185/50R17 instead of 205/45R17?
- 185/50R17 is +0.02 inches (+0.1%) 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.