215/40R17 tire size in inches
A 215/40R17 tire measures
23.8" tall × 8.5" wide
3.39" sidewall on a 17" wheel. 848 revolutions per mile.
215/40R17 means a tire 215 mm wide, with sidewalls 40% as tall as the tire is wide (86 mm), radial construction (R), for a 17 inch wheel.
215/40R17 specs
| Overall diameter (height) | 23.77 inches (604 mm) |
|---|---|
| Section width | 8.46 inches (215 mm) |
| Sidewall height | 3.39 inches (86 mm) |
| Wheel (rim) diameter | 17 inches |
| Circumference | 74.7 inches (1,897 mm) |
| Revolutions per mile | 848 |
| Revolutions per kilometer | 527 |
| Approximate rim width | 7.0" to 8.5" |
| In inches (flotation style) | 23.8x8.5R17 |
| 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 215/40R17 on a 17" wheel
These 17" sizes are within 3% of 215/40R17's overall diameter, the range most tire shops treat as interchangeable.
| Size | Diameter | Width | Difference | Real speed at 60 | |
|---|---|---|---|---|---|
| 245/35R17 | 23.75" | 9.65" | −0.1% | 60.0 mph | Compare |
| 195/45R17 | 23.91" | 7.68" | +0.6% | 60.3 mph | Compare |
| 185/45R17 | 23.56" | 7.28" | −0.9% | 59.5 mph | Compare |
| 255/35R17 | 24.03" | 10.04" | +1.1% | 60.6 mph | Compare |
| 235/35R17 | 23.48" | 9.25" | −1.2% | 59.3 mph | Compare |
| 225/40R17 | 24.09" | 8.86" | +1.3% | 60.8 mph | Compare |
| 205/40R17 | 23.46" | 8.07" | −1.3% | 59.2 mph | Compare |
| 205/45R17 | 24.26" | 8.07" | +2.1% | 61.2 mph | Compare |
| 185/50R17 | 24.28" | 7.28" | +2.2% | 61.3 mph | Compare |
| 265/35R17 | 24.30" | 10.43" | +2.2% | 61.3 mph | Compare |
| 225/35R17 | 23.20" | 8.86" | −2.4% | 58.6 mph | Compare |
| 235/40R17 | 24.40" | 9.25" | +2.6% | 61.6 mph | Compare |
Same height on other wheel sizes (plus and minus sizing)
| Size | Wheel | Diameter | Difference | |
|---|---|---|---|---|
| 155/80R14 | 14" | 23.76" | 0.0% | Compare |
| 195/70R13 | 13" | 23.75" | −0.1% | Compare |
| 165/75R14 | 14" | 23.74" | −0.1% | Compare |
| 225/55R14 | 14" | 23.74" | −0.1% | Compare |
| 185/60R15 | 15" | 23.74" | −0.1% | Compare |
| 245/25R19 | 19" | 23.82" | +0.2% | Compare |
| 245/40R16 | 16" | 23.72" | −0.2% | Compare |
| 205/30R19 | 19" | 23.84" | +0.3% | Compare |
| 225/50R15 | 15" | 23.86" | +0.4% | Compare |
| 205/60R14 | 14" | 23.69" | −0.4% | Compare |
| 245/45R15 | 15" | 23.68" | −0.4% | Compare |
| 195/50R16 | 16" | 23.68" | −0.4% | Compare |
One size up or down
- 205/40R17narrower: 23.5" × 8.1"
- 225/40R17wider: 24.1" × 8.9"
- 215/35R17lower profile: 22.9" × 8.5"
- 215/45R17taller sidewall: 24.6" × 8.5"
Compare 215/40R17 with another size
Questions
- How tall is a 215/40R17 tire?
- A 215/40R17 tire is 23.8 inches tall (604 mm), calculated from the size. It is 8.5 inches wide with 3.4 inches sidewalls. Real tires vary by a few tenths of an inch between brands and tread patterns.
- What does 215/40R17 mean?
- 215/40R17 means a tire 215 mm wide, with sidewalls 40% as tall as the tire is wide (86 mm), radial construction (R), for a 17 inch wheel.
- How many revolutions per mile does a 215/40R17 tire make?
- About 848 revolutions per mile, based on a circumference of 74.7 inches. Under load the tire flattens slightly, so the maker's published figure is usually a little higher.
- What rim width fits a 215/40R17 tire?
- Roughly 7.0" to 8.5". Check the tire maker's approved rim range for the exact model before buying wheels.
- Can I use 245/35R17 instead of 215/40R17?
- 245/35R17 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.