Home265/65R17 vs 265/70R17
265/65R17 vs 265/70R17
The 265/70R17 is 31.61 in tall: 1.05 in (3.4%) taller than the 265/65R17 at 30.56 in. At an indicated 60 mph you'd be doing 62.0 mph.The 265/70R17 is 802.8 mm tall: 26.5 mm (3.4%) taller than the 265/65R17 at 776.3 mm. At an indicated 100 km/h you'd be doing 103.4 km/h.
| InchesMillimeters | 265/ | 265/ | Change |
|---|---|---|---|
| Diameter | 30.56776.3 | 31.61802.8 | +1.05 +3.4%+26.5 +3.4% |
| Width | 10.43265 | 10.43265 | 0.00 0 |
| Sidewall | 6.78172.3 | 7.30185.5 | +0.52 +13.2 |
| Circumference | 96.02439 | 99.32522 | +3.3 +83 |
| Revs per mileRevs per km | 660410 | 638396 | -22 -14 |
Each figure is rounded separately, so related figures can differ in the last digit.
These are size-code figures only. Whether a size fits, clears and carries your load depends on your vehicle and the tire, so check with a tire shop.
What changes
The width stays at 10.43 in; the aspect ratio goes from 65 to 70. Each sidewall goes from 6.78 in to 7.30 in, and with one sidewall above the wheel and one below, the overall diameter goes from 30.56 in to 31.61 in.
Makers' own measured diameters run 30.51 to 30.6 in for the 265/65R17 and 31.57 to 31.97 in for the 265/70R17, against the calculated 30.56 in and 31.61 in. Real tires vary by brand and tread design; the figures in the table come from the size code alone.
Speedometer and odometer
A speedometer that read true on the 265/65R17 reads low on the 265/70R17: an indicated 60 mph is a true 62.0 mph.A speedometer that read true on the 265/65R17 reads low on the 265/70R17: an indicated 100 km/h is a true 103.4 km/h.
| Speedometer shows | True speed on the 265/70R17 | Error |
|---|---|---|
| 30 mph | 31.0 mph | +1.0 |
| 45 mph | 46.5 mph | +1.5 |
| 60 mph | 62.0 mph | +2.0 |
| 70 mph | 72.4 mph | +2.4 |
| 80 mph | 82.7 mph | +2.7 |
| Speedometer shows | True speed on the 265/70R17 | Error |
|---|---|---|
| 50 km/h | 51.7 km/h | +1.7 |
| 80 km/h | 82.7 km/h | +2.7 |
| 100 km/h | 103.4 km/h | +3.4 |
| 110 km/h | 113.8 km/h | +3.8 |
| 120 km/h | 124.1 km/h | +4.1 |
The odometer records about 9,670 miles for every 10,000 you drive.The odometer records about 9,670 km for every 10,000 you drive.
Ground clearance and size class
Ground clearance at the axle rises by 0.52 in: half the diameter change, unloaded.Ground clearance at the axle rises by 13.3 mm: half the diameter change, unloaded. By calculated diameter the 265/65R17 is a 31-inch tire and the 265/70R17 a 32-inch tire.
See every 31-inch and 32-inch size in metric.
Same change, other sizes
The same change in diameter, width and sidewall has its own page: 265/70R17 vs 265/75R17.
Other comparisons with these sizes
- 265/70R17 vs 285/70R17
- 265/70R17 vs 275/70R17
- 265/70R17 vs 285/75R17
- 265/70R17 vs 265/75R17
- 255/75R17 vs 265/70R17
- 245/75R17 vs 265/70R17
Compare other sizes in the calculator
Sources
- BFGoodrich: How to read a tire sidewall, retrieved 29 October 2026
- Kumho Tire USA: Crugen HT51 size and technical data, retrieved 29 October 2026
- Kumho Tire USA: Road Venture AT52 size and technical data, retrieved 29 October 2026
- NIST Guide to the SI (SP 811), Appendix B.8: Factors for units listed alphabetically, retrieved 29 October 2026
- Nitto Dura Grappler: sizes and specifications, retrieved 29 October 2026
- Nitto Recon Grappler A/T: sizes and specifications, retrieved 29 October 2026
- Nitto Terra Grappler G3: sizes and specifications, retrieved 29 October 2026
- Nitto Trail Grappler M/T: sizes and specifications, retrieved 29 October 2026
- Performance Plus Tire: What is a 285/70R17 equivalent to?, retrieved 29 October 2026
- Performance Plus Tire: 285/70R17 instead of 265/70R17 (6 Oct 2026), retrieved 29 October 2026
- Performance Plus Tire: What is a 33x12.50R17 equivalent to? (26 Jun 2026), retrieved 29 October 2026
- SimpleTire: 285/70R17 tire size, retrieved 29 October 2026
- tiresize.com: 285-70R17 size page, retrieved 29 October 2026
- Toyo Tires: Open Country A/T III sizes and specifications (spec-table data the product page loads), retrieved 29 October 2026
- Toyo Tires: Open Country M/T sizes and specifications (spec-table data), retrieved 29 October 2026
- Toyo Tires: tire finder by size, retrieved 29 October 2026
Data verified 29 October 2026 against these sources. See the methodology for how disagreements are resolved.