225/35R19 vs 255/30R19 tire size
255/30R19 vs 225/35R19, diameter
-0.7% shorter
- Speedometer
- 60.4 mph
- At a true 60 mph
- Diameter
- 25.02 in
- Was 25.20 in
- Revs per mile
- 806
- Was 800
- 3% guideline
- Within
Car built for 225/35R19, now on 255/30R19.
225/35R19 and 255/30R19
| Measure | 225/35R19 | 255/30R19 | Difference |
|---|---|---|---|
| Width, mm | 225 | 255 | +30 |
| Sidewall, % of width | 35 | 30 | -5 |
| Rim, in | 19 | 19 | 0 |
| Section height, in | 3.10 | 3.01 | -0.09 |
| Diameter, in | 25.20 | 25.02 | -0.18 (-0.7%) |
| Circumference, in | 79.2 | 78.6 | -0.6 |
| Revs per mile | 800 | 806 | +6 (+0.7%) |
Fitting 255/30R19 instead of 225/35R19
Within the usual 3% diameter guideline.
- 30 mm wider. Check rubbing at full lock.
Cars with 225/35R19
Cars with 255/30R19
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