195/45R17 Tire Size

All You Need to Know About 195/45R17 Tires

195/45R17 tires are 195 mm wide, with a 45% aspect ratio and a 17-inch wheel diameter, producing an overall diameter of 23.9 inches and a sidewall height of 3.5 inches.

The 195/45R17 belongs to a narrow, low-profile segment serving compact performance cars and sport variants of small sedans. Relative to the 195/40R17, the additional 5 percentage points of aspect ratio translate to approximately 9.75mm of extra sidewall height - a modest increase that meaningfully softens road-shock transmission without sacrificing the steering precision that distinguishes this profile group from taller 50-series fitments.

Compared to the 205/45R17, the 195/45R17 is 10mm narrower and ≈0.36 inches smaller in overall diameter - a 1.5% difference that stays within the ±3% compatibility window. This makes 195/45R17 a viable, narrower substitute on vehicles where the 205 width is used, though the reduced contact patch will affect traction balance in proportion to the power and speed involved.

195/45R17 Size Quick Specs

• Approved rim width range: 6.0-7.5"
• Recommended Rim Width: 6.5"
• Width: 195 mm
• Sidewall height: 87.75 mm
• Overall diameter: 23.9"
• Wheel diameter: 17 in

Note: The calculated overall diameter of 195/45R17 is ≈23.9 inches. Measured diameter varies modestly by brand and tread depth. Mounting on rims across the approved 6.0"-7.5" range changes the section width stance. Learn more about Rim Width Ranges and Limits.

195/45R17 Common Vehicle Fitment

195/45R17 fits a range of compact and subcompact cars where a 17-inch wheel is used alongside a narrow, low-profile section. The slightly taller sidewall compared to the 195/40R17 makes it more viable for daily driving while still maintaining a sporty, close-to-rim stance.

Vehicles that can typically accommodate a 195/45R17 tire size include:

• Honda Civic (2006-2011, EX and Si trims running 17-inch alloy packages)
• Mazda 3 (2004-2009, sport configurations with 17-inch wheels)
• Scion xB (2003-2006, select wheel configurations)
• Volkswagen Golf and GTI (Mk4 and Mk5, on standard 17-inch fitments where a narrower section is preferred)
• Mini Cooper S (2002-2008, select builds where 17-inch wheels are fitted with a narrower width)

Because 195/45R17 produces an overall diameter of 23.9 inches, it sits below the rolling circumference of most stock compact car sizes. Speedometer accuracy, ABS calibration, and suspension geometry should all be verified against the specific vehicle's baseline before selecting this size. It is most frequently chosen for sport-oriented builds, winter wheel setups on narrower 17-inch rims, or as an alternative when the OEM size is unavailable in the required compound.

195/45R17 Dimensions in Inches

The 195/45R17 tire size measures approximately 7.7 inches in width, 23.9 inches in overall diameter, and has a sidewall height of about 3.5 inches.

The functional distinction of 195/45R17 over the 195/40 variant is the additional 9.75mm of sidewall. On deteriorated or patchy road surfaces common in urban environments, that extra compliance measurably reduces the harshness transmitted through the chassis, making the 45-series the more practical choice for daily driving. Steering sharpness remains above what a 50- or 55-series tire delivers, so the 195/45R17 represents the balance point between sporting feel and acceptable everyday comfort for narrow-footprint compact cars.

195/45R17 in Inches: All Measurements

• Overall diameter: ≈23.9"
• Width: 7.7"
• Sidewall height: 3.5"
• Wheel diameter: 17"
• Circumference: ≈75.1"

Most Recommended 195/45R17 Tires

Best tires in 195/45R17 size include:

• 195/45R17 all-season performance tires:
• Summer sport tires 195/45R17:
• Touring tires 195/45R17:
• 195/45R17 set of 4 (value-focused options):

Comparison of 195/45R17 With Similar Tire Sizes

195/45R17 sits between the 195/40R17 as its shorter-profile counterpart and the 205/45R17 as a wider alternative in the same aspect ratio. These are the two comparisons most relevant to anyone evaluating replacement or compatible sizes.

Difference Between 195/45R17 and 195/40R17 Tire Sizes

The 195/40R17 is shorter while maintaining the same section width:

• Width: identical at 195 mm
• Overall diameter: 195/40R17 is ≈0.77 inches (≈3.3%) smaller than 195/45R17

This difference between 195/40R17 and 195/45R17 slightly exceeds the ±3% interchangeability threshold. Dropping to the 195/40R17 shortens rolling circumference enough to affect speedometer calibration and alters suspension geometry, and the hardened ride character of the 40-series profile is a noticeable driving experience change. These sizes require individual verification before substitution.

Difference Between 195/45R17 and 205/45R17 Tire Sizes

The 205/45R17 is wider and marginally taller:

• Width: 205/45R17 is 10 mm wider
• Overall diameter: 205/45R17 is ≈0.36 inches (≈1.5%) larger than 195/45R17

205/45R17 and 195/45R17 sizes fall within the ±3% compatibility range and are generally interchangeable on rims approved for both widths. The 205/45R17 gains a wider contact strip and slightly more rolling circumference, which is typically the direction of upsizing rather than a functional penalty. Before making any switch, it is worth understanding how the 3% rule works in practice.