235/75R15 vs 225/70R16 tire size
225/70R16 vs 235/75R15, diameter
-1.6% shorter
- Speedometer
- 61.0 mph
- At a true 60 mph
- Diameter
- 28.40 in
- Was 28.88 in
- Revs per mile
- 710
- Was 698
- 3% guideline
- Within
Car built for 235/75R15, now on 225/70R16.
235/75R15 and 225/70R16
| Measure | 235/75R15 | 225/70R16 | Difference |
|---|---|---|---|
| Width, mm | 235 | 225 | -10 |
| Sidewall, % of width | 75 | 70 | -5 |
| Rim, in | 15 | 16 | +1 |
| Section height, in | 6.94 | 6.20 | -0.74 |
| Diameter, in | 28.88 | 28.40 | -0.48 (-1.6%) |
| Circumference, in | 90.7 | 89.2 | -1.5 |
| Revs per mile | 698 | 710 | +12 (+1.7%) |
Fitting 225/70R16 instead of 235/75R15
Within the usual 3% diameter guideline.
- Needs 16 in wheels.
- Shorter sidewall: 0.7 in less.
Cars with 225/70R16
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