155/70R19 vs 235/45R19 tire size
235/45R19 vs 155/70R19, diameter
-0.8% shorter
- Speedometer
- 60.5 mph
- At a true 60 mph
- Diameter
- 27.33 in
- Was 27.54 in
- Revs per mile
- 738
- Was 732
- 3% guideline
- Within
Car built for 155/70R19, now on 235/45R19.
155/70R19 and 235/45R19
| Measure | 155/70R19 | 235/45R19 | Difference |
|---|---|---|---|
| Width, mm | 155 | 235 | +80 |
| Sidewall, % of width | 70 | 45 | -25 |
| Rim, in | 19 | 19 | 0 |
| Section height, in | 4.27 | 4.16 | -0.11 |
| Diameter, in | 27.54 | 27.33 | -0.22 (-0.8%) |
| Circumference, in | 86.5 | 85.8 | -0.7 |
| Revs per mile | 732 | 738 | +6 (+0.8%) |
Fitting 235/45R19 instead of 155/70R19
Within the usual 3% diameter guideline.
- 80 mm wider. Check rubbing at full lock.
Cars with 155/70R19
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