2021 Mercedes-Benz C-Class tire size
Most common factory size
P225/50R17
- Factory sizes
- 1
- Across 2 trims
- Trims with no size
- 19
- Diameter
- 25.86 in
- Revs per mile
- 780
Tire sizes by trim
Source marks: one source
| Size | Trims | Width, mm | Sidewall, % of width | Rim, in | Diameter, in | Sidewall, in | Revs per mile |
|---|---|---|---|---|---|---|---|
| P225/50R17 | All 2 trims | 225 | 50 | 17 | 25.86 | 4.43 | 780 |
What P225/50R17 means
| Part | Number | Meaning |
|---|---|---|
| Type | P | Passenger car tire. |
| Width | 225 mm | Tread width. 8.9 in. |
| Sidewall | 50 | Sidewall height is 50% of the width. |
| Construction | R | Radial tire. |
| Rim | 17 in | Fits 17 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 |
|---|---|---|---|---|
| 205/55R17 | 17 | 25.88 | +0.1% | 60.0 mph |
| 225/45R18 | 18 | 25.97 | +0.4% | 59.7 mph |
| 225/55R16 | 16 | 25.74 | -0.4% | 60.3 mph |
| 245/40R18 | 18 | 25.72 | -0.5% | 60.3 mph |
| 205/60R16 | 16 | 25.69 | -0.7% | 60.4 mph |
| 255/40R18 | 18 | 26.03 | +0.7% | 59.6 mph |
| 245/45R17 | 17 | 25.68 | -0.7% | 60.4 mph |
| 255/45R17 | 17 | 26.04 | +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