Tire size
225/65R17 in inches
A 225/65R17 tire is 28.5 inches tall and 8.9 inches wide, on a 17-inch wheel. Written inch-style that is about 28.5x8.9R17 (an equivalent, not a size on sale). It rounds to a 29-inch tire.
| 225/65R17 | Inches | Metric |
|---|---|---|
| Overall diameter (height) | 28.5 in | 724 mm |
| Section width | 8.9 in | 225 mm |
| Sidewall height | 5.8 in | 146 mm |
| Wheel (rim) diameter | 17 in | 432 mm |
| Circumference | 89.6 in | 2275 mm |
| Revolutions | 707 per mile | 439 per km |
How it's worked out
The 65 means the sidewall is 65% of the 225 mm width: 146.2 mm, or 5.76 in. Height = wheel + 2 sidewalls = 17 + 2 x 5.76 = 28.5 in.
Similar sizes
Sizes within about 3.5% of the height of 225/65R17. The last column is your real speed at an indicated 60 mph if your speedometer was set for 225/65R17.
| Size | Height | vs 225/65R17 | Real speed at 60 mph shown |
|---|---|---|---|
| 225/75R15 | 28.3 in | -0.8% | 59.5 mph |
| 235/75R15 | 28.9 in | +1.3% | 60.8 mph |
| 235/70R16 | 29.0 in | +1.5% | 60.9 mph |
| 235/65R17 | 29.0 in | +1.8% | 61.1 mph |
| 235/60R18 | 29.1 in | +2.1% | 61.2 mph |
| 225/75R16 | 29.3 in | +2.7% | 61.6 mph |
| 215/75R15 | 27.7 in | -2.9% | 58.3 mph |
| 245/70R16 | 29.5 in | +3.5% | 62.1 mph |
Going bigger from 225/65R17
If 225/65R17 is your stock size, these are the commonly sold axle ratios that come closest to your stock overall gearing on bigger tires.
| Your ratio now | On 33s | On 35s | On 37s |
|---|---|---|---|
| 3.21 | 3.73 exact 3.71 | 3.91 exact 3.94 | 4.10 exact 4.17 |
| 3.42 | 3.91 exact 3.96 | 4.10 exact 4.20 | 4.56 exact 4.44 |
| 3.55 | 4.10 exact 4.11 | 4.30 exact 4.36 | 4.56 exact 4.61 |
| 3.73 | 4.30 exact 4.32 | 4.56 exact 4.58 | 4.88 exact 4.84 |
| 3.91 | 4.56 exact 4.52 | 4.88 exact 4.80 | 5.13 exact 5.07 |
| 4.10 | 4.88 exact 4.74 | 5.13 exact 5.03 | 5.29 exact 5.32 |
Exact = your ratio x new height / 28.5. Front and rear axles must match on a 4WD. Not every ratio is made for every axle. Want more pull than stock? Go one step shorter. More in the regearing guide.
Questions
How tall is a 225/65R17 tire in inches?
28.5 inches (724 mm). That is the nominal height: the 17-inch wheel plus two 5.76-inch sidewalls.
What is 225/65R17 in inches?
28.5x8.9R17: 28.5 inches tall, 8.9 inches wide, for a 17-inch wheel.
Is 225/65R17 a 29-inch tire?
It measures 28.5 inches on paper, so it rounds to 29. Real tires vary a little by brand, load and wear, so check the maker's spec sheet if a fraction of an inch matters.
How many revolutions per mile does 225/65R17 do?
About 707 per mile (439 per km), from its nominal circumference of 89.6 inches.
Nominal dimensions, calculated from the size marking. Real tires differ slightly by brand, rim width, pressure and wear. Fitment depends on your vehicle, lift and wheels: this page doesn't say whether a size fits. Updated 2026-11-14.