215/65R16 vs 255/50R17 tire size
255/50R17 vs 215/65R16, diameter
+0.1% taller
- Speedometer
- 59.9 mph
- At a true 60 mph
- Diameter
- 27.04 in
- Was 27.00 in
- Revs per mile
- 746
- Was 747
- 3% guideline
- Within
Car built for 215/65R16, now on 255/50R17.
215/65R16 and 255/50R17
| Measure | 215/65R16 | 255/50R17 | Difference |
|---|---|---|---|
| Width, mm | 215 | 255 | +40 |
| Sidewall, % of width | 65 | 50 | -15 |
| Rim, in | 16 | 17 | +1 |
| Section height, in | 5.50 | 5.02 | -0.48 |
| Diameter, in | 27.00 | 27.04 | +0.04 (+0.1%) |
| Circumference, in | 84.8 | 84.9 | +0.1 |
| Revs per mile | 747 | 746 | -1 (-0.1%) |
Fitting 255/50R17 instead of 215/65R16
Within the usual 3% diameter guideline.
- Needs 17 in wheels.
- 40 mm wider. Check rubbing at full lock.
Cars with 215/65R16
Cars with 255/50R17
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