245/75R17 vs 265/70R17 tire size
265/70R17 vs 245/75R17, diameter
+0.4% taller
- Speedometer
- 59.7 mph
- At a true 60 mph
- Diameter
- 31.61 in
- Was 31.47 in
- Revs per mile
- 638
- Was 641
- 3% guideline
- Within
Car built for 245/75R17, now on 265/70R17.
245/75R17 and 265/70R17
| Measure | 245/75R17 | 265/70R17 | Difference |
|---|---|---|---|
| Width, mm | 245 | 265 | +20 |
| Sidewall, % of width | 75 | 70 | -5 |
| Rim, in | 17 | 17 | 0 |
| Section height, in | 7.23 | 7.30 | +0.07 |
| Diameter, in | 31.47 | 31.61 | +0.14 (+0.4%) |
| Circumference, in | 98.9 | 99.3 | +0.4 |
| Revs per mile | 641 | 638 | -3 (-0.4%) |
Fitting 265/70R17 instead of 245/75R17
Within the usual 3% diameter guideline.
- 20 mm wider. Check rubbing at full lock.
Cars with 245/75R17
Cars with 265/70R17
What this cannot tell you
Diameter within 3% is a common shop guideline, not a maker spec.
Load index, offset and clearance are not in this data.
- Two or more sources agree
- One source
- Model-level or estimate
- Sources differ