215/45R17 Tire Size

All You Need to Know About 215/45R17 Tires

215/45R17 tires are 215 mm wide, with a 45% aspect ratio and a 17-inch wheel diameter, producing an overall diameter of 24.6 inches and a sidewall height of 3.8 inches.

The 215/45R17 sits at the performance-oriented end of the compact and mid-size car segment on a 17-inch wheel. Its 45-series profile on a 215mm section delivers a balance that leans noticeably toward driver engagement - more steering feedback and less sidewall flex than the mainstream 50-series sizes that dominate lower trims, while still maintaining enough vertical compliance for realistic daily-driving durability. This positioning explains why the 215/45R17 size appears as the upgrade wheel option on several U.S. models where the base trim uses a 16-inch wheel with a taller profile.

Compared to the 205/45R17, the 215/45R17 adds 10mm of section width while increasing overall diameter by only ≈0.35 inches (≈1.4%) — a difference that remains well within the ±3% interchangeability threshold. Against the 225/45R17, the 215/45R17 reduces section width by 10mm while the diameter decreases by the same 0.35 inches, keeping both comparisons symmetrical and within compatibility range.

Where a P215/45R17 label is used, the dimensions are the same as the standard metric designation, structured under passenger-car load standards appropriate for the compact and mid-size vehicles this size primarily serves.

215/45R17 Size Quick Specs

• Approved rim width range: 7.0"-8.0"
• Measured Rim Width: 7.0"
• Width: 215 mm
• Sidewall height: 96.75 mm
• Overall diameter: 24.6"
• Wheel diameter: 17 in

Note: The calculated overall diameter of 215/45R17 is ≈24.6 inches. Variation of a few tenths of an inch is typical across manufacturers based on tread depth and construction. Mounting on rims within the approved 7.0–8.0" range shifts the measured section width without changing the nominal diameter. Learn more about Rim Width Ranges and Limits.

215/45R17 Common Vehicle Fitment

215/45R17 is used across a wide range of compact and mid-size sedans and coupes in the U.S. market, typically on sport or premium trims where a 17-inch wheel package is part of an upgraded chassis specification. Common U.S.-market applications include:

• Acura ILX (2012–2022)
• Acura RSX (2002–2006)
• BMW 3 Series E36 (1992–1999, select trims)
• Honda Civic (2005–2016, select trims)
• Kia Forte Koup / Forte (2010–2018, select configurations)

Because these fitments are trim-specific rather than platform-wide, 215/45R17 should be verified against the exact model year and configuration before purchase. Replacements must carry the original speed rating — commonly V or W on sport trims — and meet the load index specified on the vehicle's door placard to maintain factory safety margins.

215/45R17 Dimensions in Inches

The 215/45R17 tire size measures approximately 8.5 inches in width, 24.6 inches in overall diameter, and has a sidewall height of about 3.8 inches.

The 3.8-inch sidewall is the defining element of the 215/45R17's road behavior. It is tall enough to provide meaningful cushioning against potholes and surface breaks that would be punishing on 40-series tires, yet short enough to keep lateral flex tightly controlled under cornering loads. This range - from 3.6 to 4.0 inches of sidewall - is where most compact sport sedans and coupes settle their wheel upgrade packages, because it successfully serves both the engineering requirement for controlled response and the practical requirement for durable everyday use.

215/45R17 in Inches: All Measurements

• Overall diameter: ≈24.6"
• Width: 8.5"
• Sidewall height: 3.8"
• Wheel diameter: 17"
• Circumference: ≈77.3"

Most Recommended 215/45R17 Tires

Best tires in 215/45R17 size include:

• 215/45R17 all-season tires:
• Summer performance tires 215/45R17:
• Grand touring tires 215/45R17:
• 215/45R17 set of 4 (value-focused options):

Comparison of 215/45R17 With Similar Tire Sizes

215/45R17 sits between the 205/45R17 as the narrower alternative in the same profile and the 225/45R17 as the wider option - both of which maintain near-identical overall diameter and represent the most common cross-references for this size.

Difference Between 215/45R17 and 205/45R17 Tire Sizes

The 205/45R17 is narrower while maintaining a very similar overall diameter:

• Width: 205/45R17 is 10 mm narrower
• Overall diameter:  205/45R17 is ≈0.35 inches (≈1.4%) smaller than 215/45R17

The difference between 205/45R17 and 215/45R17 is well within the ±3% compatibility range, making these sizes generally interchangeable in diameter terms. The meaningful change is contact width: dropping to the 205/45R17 reduces the traction footprint by 10mm, which is relevant to cornering balance on sport-tuned platforms but largely inconsequential for everyday urban use.

Difference Between 215/45R17 and 225/45R17 Tire Sizes

The 225/45R17 is wider and slightly taller:

• Width: 225/45R17 is 10 mm wider
• Overall diameter:  225/45R17is ≈0.35 inches (≈1.4%) larger than 215/45R17

225/45R17 and 215/45R17 sizes are generally interchangeable from a rolling circumference standpoint, staying within the ±3% compatibility range. The 225/45R17 expands the contact patch and adds minor height - acceptable on vehicles where the rim is wide enough to support 225mm and wheel well clearance is confirmed. Before making any switch from or to 225/45R17 size, it is worth understanding how the 3% rule works in practice and what else to verify when changing tire size.

Choosing the right rim to pair with a 215/45R17 size matters as much as the tire itself. Aftermarket Wheel Fitment: 7 Specs You Can't Get Wrong breaks down the seven wheel specifications that affect fitment, clearance, and safety.