215/50R17 vs 245/45R17 tire size
245/45R17 vs 215/50R17, diameter
+0.9% taller
- Speedometer
- 59.5 mph
- At a true 60 mph
- Diameter
- 25.68 in
- Was 25.46 in
- Revs per mile
- 785
- Was 792
- 3% guideline
- Within
Car built for 215/50R17, now on 245/45R17.
215/50R17 and 245/45R17
| Measure | 215/50R17 | 245/45R17 | Difference |
|---|---|---|---|
| Width, mm | 215 | 245 | +30 |
| Sidewall, % of width | 50 | 45 | -5 |
| Rim, in | 17 | 17 | 0 |
| Section height, in | 4.23 | 4.34 | +0.11 |
| Diameter, in | 25.46 | 25.68 | +0.22 (+0.9%) |
| Circumference, in | 80.0 | 80.7 | +0.7 |
| Revs per mile | 792 | 785 | -7 (-0.8%) |
Fitting 245/45R17 instead of 215/50R17
Within the usual 3% diameter guideline.
- 30 mm wider. Check rubbing at full lock.
Cars with 215/50R17
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