29.5x11.50R15 tire size
29.5x11.50R15 is a flotation (inch) size: 29.5" tall, 11.5" wide, on a 15" rim — about a 290/65R15. The sidewall is 7.3" and the tire turns 684 times per mile.
29.5x11.50R15 specs
| Overall diameter (height) | 29.50" · 749 mm |
|---|---|
| Section width | 11.50" · 292 mm |
| Sidewall height | 7.25" · 184 mm (63% of width) |
| Rim diameter | 15" |
| Circumference | 92.68" · 2.354 m |
| Revolutions per mile | 684 (425 per km) |
| Closest metric size | 290/65R15 |
Equivalent sizes on a 15" rim
Sizes within ±5% of the overall diameter. Green rows are inside the usual ±3% limit for keeping the speedometer, ABS and gearing right; red rows are bigger changes that need clearance checks.
| Size | Diameter | Difference | Width | Speedo at 60 | |
|---|---|---|---|---|---|
| 235/75R15 common | 28.88" | -2.11% | -57 mm | 58.7 mph | calculate → |
| 30x9.50R15 | 30.00" | +1.69% | -51 mm | 61.0 mph | calculate → |
| 225/75R15 | 28.29" | -4.11% | -67 mm | 57.5 mph | calculate → |
| 255/70R15 | 29.06" | -1.51% | -37 mm | 59.1 mph | calculate → |
| 265/70R15 | 29.61" | +0.36% | -27 mm | 60.2 mph | calculate → |
| 265/75R15 | 30.65" | +3.90% | -27 mm | 62.3 mph | calculate → |
| 29x10.50R15 | 29.00" | -1.69% | -25 mm | 59.0 mph | calculate → |
| 295/65R15 | 30.10" | +2.03% | +3 mm | 61.2 mph | calculate → |
| 30x11.50R15 | 30.00" | +1.69% | 0 mm | 61.0 mph | calculate → |
| 29.5x10.50R15 | 29.50" | 0.00% | -25 mm | 60.0 mph | calculate → |
| 29.5x13.50R15 | 29.50" | 0.00% | +51 mm | 60.0 mph | calculate → |
| 29.5x9.00R15 | 29.50" | 0.00% | -63 mm | 60.0 mph | calculate → |
| 215/85R15 | 29.39" | -0.37% | -77 mm | 59.8 mph | calculate → |
| 29x11.50R15 | 29.00" | -1.69% | 0 mm | 59.0 mph | calculate → |
| 29x15.00R15 | 29.00" | -1.69% | +89 mm | 59.0 mph | calculate → |
| 29x18.00R15 | 29.00" | -1.69% | +165 mm | 59.0 mph | calculate → |
| 29x8.50R15 | 29.00" | -1.69% | -76 mm | 59.0 mph | calculate → |
| 30x10.50R15 | 30.00" | +1.69% | -25 mm | 61.0 mph | calculate → |
| 30x10.00R15 | 30.00" | +1.69% | -38 mm | 61.0 mph | calculate → |
| 30x12.00R15 | 30.00" | +1.69% | +13 mm | 61.0 mph | calculate → |
| 30x9.00R15 | 30.00" | +1.69% | -63 mm | 61.0 mph | calculate → |
| 255/75R15 | 30.06" | +1.90% | -37 mm | 61.1 mph | calculate → |
| 315/60R15 | 29.88" | +1.29% | +23 mm | 60.8 mph | calculate → |
| 29x12.50R15 | 29.00" | -1.69% | +26 mm | 59.0 mph | calculate → |
| 29x15.50R15 | 29.00" | -1.69% | +102 mm | 59.0 mph | calculate → |
| 29x18.50R15 | 29.00" | -1.69% | +178 mm | 59.0 mph | calculate → |
| 30x12.50R15 | 30.00" | +1.69% | +26 mm | 61.0 mph | calculate → |
| 30x13.50R15 | 30.00" | +1.69% | +51 mm | 61.0 mph | calculate → |
| 30x7.00R15 | 30.00" | +1.69% | -114 mm | 61.0 mph | calculate → |
| 245/70R15 | 28.50" | -3.38% | -47 mm | 58.0 mph | calculate → |
| 255/65R15 | 28.05" | -4.91% | -37 mm | 57.1 mph | calculate → |
Plus / minus sizing: 14" and 16" rims
Same overall height on a different rim. Check wheel width and clearance before switching.
| Size | Diameter | Difference | Width | Speedo at 60 | |
|---|---|---|---|---|---|
| 225/75R16 common | 29.29" | -0.72% | -67 mm | 59.6 mph | calculate → |
| 245/70R16 common | 29.50" | +0.01% | -47 mm | 60.0 mph | calculate → |
| 285/60R16 | 29.46" | -0.12% | -7 mm | 59.9 mph | calculate → |
Try another size against 29.5x11.50R15
Questions
What size is 29.5x11.50R15 in inches?
29.5x11.50R15 is about 29.5" tall and 11.5" wide on a 15-inch rim — roughly a 290/65R15 in inch sizing.
What does 29.5x11.50R15 mean?
29.5" overall diameter, 11.50" section width, radial, 15" rim.
What tire sizes are equivalent to 29.5x11.50R15?
On the same 15" rim, within 3% of the diameter: 29.5x10.50R15 (0.00%), 29.5x13.50R15 (0.00%), 29.5x9.00R15 (0.00%), 265/70R15 (+0.36%), 215/85R15 (-0.37%), 315/60R15 (+1.29%).
How many revolutions per mile does a 29.5x11.50R15 tire make?
About 684 revolutions per mile (circumference 92.7").
How these numbers are computed
Diameter = rim + 2 × sidewall, sidewall = width × aspect ÷ 100, circumference = π × diameter, revolutions per mile = 63,360 ÷ circumference. Real tires differ by brand by a few tenths of an inch. Last reviewed October 14, 2026.