About the 185/55R16 Tire

The 185/55R16 is a common tire size for midsize sedans such as Toyota Camry, Honda Accord, and Hyundai Sonata.

With a 101.8 mm sidewall (55% aspect ratio), this tire offers a balanced blend of ride comfort and handling precision — versatile for both city driving and spirited cornering.

Compared to the baseline 205/55R16, this tire's overall diameter differs by -3.5% — a speedometer calibrated for 205/55R16 would read 103.6 km/h at an actual 100 km/h.

When replacing, verify that your wheel well can accommodate the 609.9 mm overall diameter. Keep speedometer deviation within ±3% for safety and legal compliance.

Tire Measurements

Tire Code185/55R16
Section Width185 mm
Aspect Ratio55%
Rim Diameter16"
Sidewall Height101.8 mm
Overall Diameter609.9 mm / 24.01"
Circumference1916.1 mm / 75.44"
Revolutions per km521.9
Revolutions per mile839.9

Adjacent Size Comparison

Tire Code OD (mm)Δ mmΔ % Speedo at 100 km/h
185/55R16 (current) 609.9 — — 100.0
195/55R16 620.9 +11.0 +1.8% 98.2
205/55R16 631.9 +22.0 +3.6% 96.5

Frequently Asked Questions

What is the overall diameter of a 185/55R16 tire?
The overall diameter is 609.9 mm (24.01 in), with a 101.8 mm sidewall on a 16-inch rim.
How many revolutions per kilometer does a 185/55R16 tire make?
It makes 521.9 revolutions per kilometer, with a circumference of 1916.1 mm.
What vehicles commonly use 185/55R16 tires?
The 185/55R16 is standard OEM equipment on midsize sedans such as Toyota Camry, Honda Accord, and Hyundai Sonata. Always check your owner's manual or door placard before switching sizes.

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