225/65R15 dimensions
| Measure | Inches | Millimetres |
|---|---|---|
| Overall height | 26.52 in | 674 mm |
| Section width | 8.86 in | 225 mm |
| Sidewall height | 5.76 in | 146.2 mm |
| Wheel diameter | 15 in | 381 mm |
| Circumference | 83.3 in | 2,116 mm |
| Revolutions per mile | 760.6 |
The math
| Step | Math | Result |
|---|---|---|
| Sidewall | 225 × 65% = 146.2 mm ÷ 25.4 | 5.76 in |
| Overall height | 15 + 2 × 5.76 | 26.52 in |
| Width | 225 mm ÷ 25.4 | 8.86 in |
| Circumference | π × 26.52 | 83.3 in |
| Revs per mile | 63,360 ÷ 83.3 | 760.6 |
With a 5.8 in sidewall this is a tall sidewall with more cushion and flex. Real tires vary by brand and model, and the loaded radius under the vehicle is a bit smaller than this unloaded figure.
One step either way on a 15 in wheel
Each row changes one thing and shows the height change against 225/65R15, plus what 60 mph on the speedometer would really be if you swapped to that size.
| Change | Size | Height | Height change | 60 mph shows as | Verdict |
|---|---|---|---|---|---|
| Wider | 235/65R15 (compare) | 27.0 in | +1.9% | 61.2 mph | Close match |
| Narrower | 215/65R15 (compare) | 26.0 in | -1.9% | 58.8 mph | Close match |
| Taller sidewall | 225/70R15 (compare) | 27.4 in | +3.3% | 62.0 mph | Check clearance |
| Shorter sidewall | 225/60R15 (compare) | 25.6 in | -3.3% | 58.0 mph | Check clearance |
| Wider, shorter sidewall | 235/60R15 (compare) | 26.1 in | -1.6% | 59.1 mph | Close match |
| Narrower, taller sidewall | 215/70R15 (compare) | 26.9 in | +1.3% | 60.8 mph | Close match |
Calculated sizes within ±3% on other wheels
Plus and minus sizes that keep the overall height within about 3% (a rule of thumb from Discount Tire and 1010tires), widths within 30 mm. Calculated, not a list of tires on sale: check that a tire exists in that size.
14 in wheels (one wheel size smaller)
| Size | Height | Height change | Width change |
|---|---|---|---|
| 245/65R14 (compare) | 26.5 in | +0.1% | +20 mm |
| 225/70R14 (compare) | 26.4 in | -0.4% | +0 mm |
| 215/75R14 (compare) | 26.7 in | +0.7% | -10 mm |
| 195/80R14 (compare) | 26.3 in | -0.9% | -30 mm |
16 in wheels (one wheel size larger)
| Size | Height | Height change | Width change |
|---|---|---|---|
| 205/65R16 (compare) | 26.5 in | -0.1% | -20 mm |
| 245/55R16 (compare) | 26.6 in | +0.4% | +20 mm |
| 225/60R16 (compare) | 26.6 in | +0.4% | +0 mm |
| 195/70R16 (compare) | 26.7 in | +0.9% | -30 mm |
17 in wheels (two wheel sizes larger)
| Size | Height | Height change | Width change |
|---|---|---|---|
| 245/50R17 (compare) | 26.6 in | +0.5% | +20 mm |
| 205/60R17 (compare) | 26.7 in | +0.6% | -20 mm |
| 215/55R17 (compare) | 26.3 in | -0.8% | -10 mm |
| 225/55R17 (compare) | 26.7 in | +0.9% | +0 mm |
Try it with your numbers
Compare 225/65R15 with another size · Convert to metric or find a 33 in size · Sizes that fit my wheel
Calculated from the size alone. Real tires vary a little by brand and model, and the loaded radius is a bit smaller. Confirm the wheel width range, clearance, load index and speed rating for your vehicle. See how to read a tire size, the load index chart and the speed rating chart.
Browse: all sizes in inches · 225/60R15 · 225/70R15.