245/65R17 dimensions
| Measure | Inches | Millimetres |
|---|---|---|
| Overall height | 29.54 in | 750 mm |
| Section width | 9.65 in | 245 mm |
| Sidewall height | 6.27 in | 159.2 mm |
| Wheel diameter | 17 in | 432 mm |
| Circumference | 92.8 in | 2,357 mm |
| Revolutions per mile | 682.8 |
The math
| Step | Math | Result |
|---|---|---|
| Sidewall | 245 × 65% = 159.2 mm ÷ 25.4 | 6.27 in |
| Overall height | 17 + 2 × 6.27 | 29.54 in |
| Width | 245 mm ÷ 25.4 | 9.65 in |
| Circumference | π × 29.54 | 92.8 in |
| Revs per mile | 63,360 ÷ 92.8 | 682.8 |
With a 6.3 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 17 in wheel
Each row changes one thing and shows the height change against 245/65R17, 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 | 255/65R17 (compare) | 30.1 in | +1.7% | 61.0 mph | Close match |
| Narrower | 235/65R17 (compare) | 29.0 in | -1.7% | 59.0 mph | Close match |
| Taller sidewall | 245/70R17 (compare) | 30.5 in | +3.3% | 62.0 mph | Check clearance |
| Shorter sidewall | 245/60R17 (compare) | 28.6 in | -3.3% | 58.0 mph | Check clearance |
| Wider, shorter sidewall | 255/60R17 (compare) | 29.0 in | -1.7% | 59.0 mph | Close match |
| Narrower, taller sidewall | 235/70R17 (compare) | 30.0 in | +1.4% | 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.
16 in wheels (one wheel size smaller)
| Size | Height | Height change | Width change |
|---|---|---|---|
| 215/80R16 (compare) | 29.5 in | +0.0% | -30 mm |
| 265/65R16 (compare) | 29.6 in | +0.1% | +20 mm |
| 245/70R16 (compare) | 29.5 in | -0.1% | +0 mm |
| 225/75R16 (compare) | 29.3 in | -0.9% | -20 mm |
18 in wheels (one wheel size larger)
| Size | Height | Height change | Width change |
|---|---|---|---|
| 225/65R18 (compare) | 29.5 in | -0.1% | -20 mm |
| 245/60R18 (compare) | 29.6 in | +0.1% | +0 mm |
| 265/55R18 (compare) | 29.5 in | -0.2% | +20 mm |
| 215/70R18 (compare) | 29.9 in | +1.1% | -30 mm |
19 in wheels (two wheel sizes larger)
| Size | Height | Height change | Width change |
|---|---|---|---|
| 245/55R19 (compare) | 29.6 in | +0.2% | +0 mm |
| 225/60R19 (compare) | 29.6 in | +0.3% | -20 mm |
| 265/50R19 (compare) | 29.4 in | -0.4% | +20 mm |
| 275/50R19 (compare) | 29.8 in | +1.0% | +30 mm |
Try it with your numbers
Compare 245/65R17 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 · 245/45R17 · 245/70R17.