215/70R16 vs 245/55R17 tire size
245/55R17 vs 215/70R16, diameter
-0.9% shorter
- Speedometer
- 60.5 mph
- At a true 60 mph
- Diameter
- 27.61 in
- Was 27.85 in
- Revs per mile
- 730
- Was 724
- 3% guideline
- Within
Car built for 215/70R16, now on 245/55R17.
215/70R16 and 245/55R17
| Measure | 215/70R16 | 245/55R17 | Difference |
|---|---|---|---|
| Width, mm | 215 | 245 | +30 |
| Sidewall, % of width | 70 | 55 | -15 |
| Rim, in | 16 | 17 | +1 |
| Section height, in | 5.93 | 5.31 | -0.62 |
| Diameter, in | 27.85 | 27.61 | -0.24 (-0.9%) |
| Circumference, in | 87.5 | 86.7 | -0.8 |
| Revs per mile | 724 | 730 | +6 (+0.9%) |
Fitting 245/55R17 instead of 215/70R16
Within the usual 3% diameter guideline.
- Needs 17 in wheels.
- 30 mm wider. Check rubbing at full lock.
- Shorter sidewall: 0.6 in less.
Cars with 215/70R16
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