2026 Subaru Impreza tire size
Most common factory size
P225/40R18
- Factory sizes
- 1
- Across 2 trims
- Diameter
- 25.09 in
- Revs per mile
- 804
Tire sizes by trim
Source marks: one source
| Size | Trims | Width, mm | Sidewall, % of width | Rim, in | Diameter, in | Sidewall, in | Revs per mile |
|---|---|---|---|---|---|---|---|
| P225/40R18 | All 2 trims | 225 | 40 | 18 | 25.09 | 3.54 | 804 |
What P225/40R18 means
| Part | Number | Meaning |
|---|---|---|
| Type | P | Passenger car tire. |
| Width | 225 mm | Tread width. 8.9 in. |
| Sidewall | 40 | Sidewall height is 40% of the width. |
| Construction | R | Radial tire. |
| Rim | 18 in | Fits 18 in wheels. |
Other sizes that fit
Within 3% of the stock diameter. A common shop guideline, not a maker spec.
| Size | Rim, in | Diameter, in | Change | Speedo reads at 60 mph |
|---|---|---|---|---|
| 205/50R17 | 17 | 25.07 | -0.1% | 60.0 mph |
| 255/35R18 | 18 | 25.03 | -0.2% | 60.1 mph |
| 255/30R19 | 19 | 25.02 | -0.3% | 60.2 mph |
| 225/35R19 | 19 | 25.20 | +0.5% | 59.7 mph |
| 225/45R17 | 17 | 24.97 | -0.5% | 60.3 mph |
| 295/30R18 | 18 | 24.97 | -0.5% | 60.3 mph |
| 265/30R19 | 19 | 25.26 | +0.7% | 59.6 mph |
| 205/45R18 | 18 | 25.26 | +0.7% | 59.6 mph |
Checked against 292 factory sizes listed for 2009-2027 US models.
What this cannot tell you
Tire pressure is on the driver door sticker. Not in this data.
Optional wheel packages may differ.
- Two or more sources agree
- One source
- Model-level or estimate
- Sources differ