235/45R19 vs 265/40R19 tire size
265/40R19 vs 235/45R19, diameter
Same diameter
- Speedometer
- 60.0 mph
- At a true 60 mph
- Diameter
- 27.35 in
- Was 27.33 in
- Revs per mile
- 738
- Was 738
- 3% guideline
- Within
Car built for 235/45R19, now on 265/40R19.
235/45R19 and 265/40R19
| Measure | 235/45R19 | 265/40R19 | Difference |
|---|---|---|---|
| Width, mm | 235 | 265 | +30 |
| Sidewall, % of width | 45 | 40 | -5 |
| Rim, in | 19 | 19 | 0 |
| Section height, in | 4.16 | 4.17 | +0.01 |
| Diameter, in | 27.33 | 27.35 | +0.02 (+0.1%) |
| Circumference, in | 85.8 | 85.9 | +0.1 |
| Revs per mile | 738 | 738 | -1 (-0.1%) |
Fitting 265/40R19 instead of 235/45R19
Within the usual 3% diameter guideline.
- 30 mm wider. Check rubbing at full lock.
Cars with 235/45R19
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