2026 Lexus IS tire size
Most common factory size
P235/40R19
- Factory sizes
- 1
- Across 4 trims
- Diameter
- 26.40 in
- Revs per mile
- 764
Tire sizes by trim
Source marks: one source
| Size | Trims | Width, mm | Sidewall, % of width | Rim, in | Diameter, in | Sidewall, in | Revs per mile |
|---|---|---|---|---|---|---|---|
| P235/40R19 | All 4 trims | 235 | 40 | 19 | 26.40 | 3.70 | 764 |
What P235/40R19 means
| Part | Number | Meaning |
|---|---|---|
| Type | P | Passenger car tire. |
| Width | 235 mm | Tread width. 9.3 in. |
| Sidewall | 40 | Sidewall height is 40% of the width. |
| Construction | R | Radial tire. |
| Rim | 19 in | Fits 19 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 |
|---|---|---|---|---|
| 215/50R18 | 18 | 26.46 | +0.2% | 59.9 mph |
| 235/35R20 | 20 | 26.48 | +0.3% | 59.8 mph |
| 235/45R18 | 18 | 26.33 | -0.3% | 60.2 mph |
| 275/30R20 | 20 | 26.50 | +0.4% | 59.8 mph |
| 265/35R19 | 19 | 26.30 | -0.4% | 60.2 mph |
| 265/30R20 | 20 | 26.26 | -0.5% | 60.3 mph |
| 275/35R19 | 19 | 26.58 | +0.7% | 59.6 mph |
| 305/30R19 | 19 | 26.20 | -0.7% | 60.5 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