245/75R16 vs 235/70R17 tire size
235/70R17 vs 245/75R16, diameter
-1.7% shorter
- Speedometer
- 61.0 mph
- At a true 60 mph
- Diameter
- 29.95 in
- Was 30.47 in
- Revs per mile
- 673
- Was 662
- 3% guideline
- Within
Car built for 245/75R16, now on 235/70R17.
245/75R16 and 235/70R17
| Measure | 245/75R16 | 235/70R17 | Difference |
|---|---|---|---|
| Width, mm | 245 | 235 | -10 |
| Sidewall, % of width | 75 | 70 | -5 |
| Rim, in | 16 | 17 | +1 |
| Section height, in | 7.23 | 6.48 | -0.76 |
| Diameter, in | 30.47 | 29.95 | -0.52 (-1.7%) |
| Circumference, in | 95.7 | 94.1 | -1.6 |
| Revs per mile | 662 | 673 | +11 (+1.7%) |
Fitting 235/70R17 instead of 245/75R16
Within the usual 3% diameter guideline.
- Needs 17 in wheels.
- Shorter sidewall: 0.8 in less.
Cars with 245/75R16
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