Decoded sidewall size

195/45R16 tire size

195/45R16 in inches: 22.91" overall diameter — 7.68" wide, 3.45" sidewall.

Methodology: dimensions are calculated from standard ETRTO tire-size formulas. Last reviewed June 2026 by the TreadSize editorial team.

195/45R16 tire detail photo with TreadSize diameter, width, and rim measurement card

Overall diameter 22.91 in 581.9 mm

Section width 7.68 in 195 mm

Sidewall height 3.45 in 87.75 mm

Revs / mile 880 speedo calibration

Before you fit 195/45R16: verify the vehicle placard, load index, speed rating, wheel offset, and full-lock/full-compression clearance. Nominal dimensions do not guarantee a safe physical fit.

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Full dimensions

Measurement	Metric	Imperial
Overall diameter	581.9 mm	22.91 in
Section width	195 mm	7.68 in
Sidewall height	87.75 mm	3.45 in
Rim diameter	406.4 mm	16 in
Circumference	1828.1 mm	71.97 in
Revolutions per mile	880.3
Aspect ratio	45%

Formula-only page, pending data review

TreadSize can calculate the physical dimensions for 195/45R16, but the current first-party NHTSA size dataset has no complaint or recall row for this exact size. This page is marked noindex until a real safety record exists; no complaint counts, recall counts, or verified safety claims are inferred from nearby sizes.

Source checked: NHTSA ODI — Consumer Complaints (FLAT_CMPL) + Recalls (FLAT_RCL), U.S. DOT public domain; Complaints through 2021. For current recall research, use NHTSA.gov.

Related tire sizes

205/45R16 → 215/45R16 → 195/50R16 → 195/55R16 →

Decode another tire size → · Compare two sizes → · Plus sizing →

Frequently asked questions

What is the overall diameter of a 195/45R16 tire?

A 195/45R16 tire has an overall diameter of 22.91 inches (581.9 mm).

How tall is a 195/45R16 tire?

The sidewall height is 87.75 mm (3.45 inches), and the overall diameter from the ground to the top of the tire is 22.91 inches.

How many revolutions per mile does a 195/45R16 tire make?

A 195/45R16 tire makes approximately 880 revolutions per mile. Your speedometer is calibrated to this number.

What rim size does a 195/45R16 tire fit?

A 195/45R16 tire is designed for a 16-inch rim (406.4 mm).

All dimensions calculated using standard ETRTO formulas. Always confirm fitment with your vehicle's door-placard and a qualified tire professional before purchasing.