30x11.50R16 tire size
30x11.50R16 is a flotation (inch) size: 30.0" tall, 11.5" wide, on a 16" rim — about a 290/60R16. The sidewall is 7.0" and the tire turns 672 times per mile.
30x11.50R16 specs
| Overall diameter (height) | 30.00" · 762 mm |
|---|---|
| Section width | 11.50" · 292 mm |
| Sidewall height | 7.00" · 178 mm (61% of width) |
| Rim diameter | 16" |
| Circumference | 94.25" · 2.394 m |
| Revolutions per mile | 672 (418 per km) |
| Closest metric size | 290/60R16 |
Equivalent sizes on a 16" 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 | |
|---|---|---|---|---|---|
| 245/75R16 common | 30.47" | +1.56% | -47 mm | 60.9 mph | calculate → |
| 225/75R16 common | 29.29" | -2.38% | -67 mm | 58.6 mph | calculate → |
| 265/70R16 common | 30.61" | +2.02% | -27 mm | 61.2 mph | calculate → |
| 235/70R16 common | 28.95" | -3.49% | -57 mm | 57.9 mph | calculate → |
| 245/70R16 common | 29.50" | -1.65% | -47 mm | 59.0 mph | calculate → |
| 255/70R16 common | 30.06" | +0.18% | -37 mm | 60.1 mph | calculate → |
| 215/85R16 common | 30.39" | +1.30% | -77 mm | 60.8 mph | calculate → |
| 235/75R16 | 29.88" | -0.41% | -57 mm | 59.8 mph | calculate → |
| 255/65R16 | 29.05" | -3.16% | -37 mm | 58.1 mph | calculate → |
| 275/70R16 | 31.16" | +3.86% | -17 mm | 62.3 mph | calculate → |
| 235/80R16 | 30.80" | +2.68% | -57 mm | 61.6 mph | calculate → |
| 215/75R16 | 28.70" | -4.34% | -77 mm | 57.4 mph | calculate → |
| 285/65R16 | 30.59" | +1.96% | -7 mm | 61.2 mph | calculate → |
| 31x12.50R16 | 31.00" | +3.33% | +26 mm | 62.0 mph | calculate → |
| 285/60R16 | 29.46" | -1.78% | -7 mm | 58.9 mph | calculate → |
| 31x10.50R16 | 31.00" | +3.33% | -25 mm | 62.0 mph | calculate → |
| 31x11.50R16 | 31.00" | +3.33% | 0 mm | 62.0 mph | calculate → |
| 31x11.00R16 | 31.00" | +3.33% | -13 mm | 62.0 mph | calculate → |
| 205/80R16 | 28.91" | -3.62% | -87 mm | 57.8 mph | calculate → |
| 275/60R16 | 28.99" | -3.36% | -17 mm | 58.0 mph | calculate → |
| 225/85R16 | 31.06" | +3.53% | -67 mm | 62.1 mph | calculate → |
Plus / minus sizing: 15" and 17" rims
Same overall height on a different rim. Check wheel width and clearance before switching.
| Size | Diameter | Difference | Width | Speedo at 60 | |
|---|---|---|---|---|---|
| 255/65R17 common | 30.05" | +0.17% | -37 mm | 60.1 mph | calculate → |
| 30x9.50R15 | 30.00" | 0.00% | -51 mm | 60.0 mph | calculate → |
| 235/70R17 | 29.95" | -0.16% | -57 mm | 59.9 mph | calculate → |
| 225/75R17 | 30.29" | +0.96% | -67 mm | 60.6 mph | calculate → |
| 275/60R17 | 29.99" | -0.03% | -17 mm | 60.0 mph | calculate → |
| 295/65R15 | 30.10" | +0.33% | +3 mm | 60.2 mph | calculate → |
| 30x11.50R15 | 30.00" | 0.00% | 0 mm | 60.0 mph | calculate → |
| 30x10.50R15 | 30.00" | 0.00% | -25 mm | 60.0 mph | calculate → |
| 30x10.00R15 | 30.00" | 0.00% | -38 mm | 60.0 mph | calculate → |
| 30x12.00R15 | 30.00" | 0.00% | +13 mm | 60.0 mph | calculate → |
| 30x9.00R15 | 30.00" | 0.00% | -63 mm | 60.0 mph | calculate → |
| 255/75R15 | 30.06" | +0.20% | -37 mm | 60.1 mph | calculate → |
| 30x12.50R15 | 30.00" | 0.00% | +26 mm | 60.0 mph | calculate → |
| 30x13.50R15 | 30.00" | 0.00% | +51 mm | 60.0 mph | calculate → |
| 30x7.00R15 | 30.00" | 0.00% | -114 mm | 60.0 mph | calculate → |
| 315/60R15 | 29.88" | -0.39% | +23 mm | 59.8 mph | calculate → |
Try another size against 30x11.50R16
Questions
What size is 30x11.50R16 in inches?
30x11.50R16 is about 30.0" tall and 11.5" wide on a 16-inch rim — roughly a 290/60R16 in inch sizing.
What does 30x11.50R16 mean?
30" overall diameter, 11.50" section width, radial, 16" rim.
What tire sizes are equivalent to 30x11.50R16?
On the same 16" rim, within 3% of the diameter: 255/70R16 (+0.18%), 235/75R16 (-0.41%), 215/85R16 (+1.30%), 245/75R16 (+1.56%), 245/70R16 (-1.65%), 285/60R16 (-1.78%).
How many revolutions per mile does a 30x11.50R16 tire make?
About 672 revolutions per mile (circumference 94.2").
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.