215/55R18 vs 265/40R19 tire size
265/40R19 vs 215/55R18, diameter
+0.1% taller
- Speedometer
- 59.9 mph
- At a true 60 mph
- Diameter
- 27.35 in
- Was 27.31 in
- Revs per mile
- 738
- Was 738
- 3% guideline
- Within
Car built for 215/55R18, now on 265/40R19.
215/55R18 and 265/40R19
| Measure | 215/55R18 | 265/40R19 | Difference |
|---|---|---|---|
| Width, mm | 215 | 265 | +50 |
| Sidewall, % of width | 55 | 40 | -15 |
| Rim, in | 18 | 19 | +1 |
| Section height, in | 4.66 | 4.17 | -0.48 |
| Diameter, in | 27.31 | 27.35 | +0.04 (+0.1%) |
| Circumference, in | 85.8 | 85.9 | +0.1 |
| Revs per mile | 738 | 738 | -1 (-0.1%) |
Fitting 265/40R19 instead of 215/55R18
Within the usual 3% diameter guideline.
- Needs 19 in wheels.
- 50 mm wider. Check rubbing at full lock.
Cars with 215/55R18
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