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Tire Size Guide

175/55R20 Tires

Compare 1 available models across 1 categories, then confirm fitment for your vehicle.

Our Top Pick in 175/55R20
Bridgestone Ecopia EP500
Grand Touring All SeasonComfort

The Bridgestone Ecopia EP500 is a solid choice for drivers prioritizing comfort and noise in a grand touring all-season tire.

Comfort and noise scores of 8 match the category averages, making it a pleasant choice for long drives. Wet grip score of 7.5 slightly exceeds the category average of 7.4, providing reliable performance in rainy conditions. Handling score of 7.5 aligns well with the category expectations, ensuring stable performance during everyday driving.
70Spec score (est.)
Full analysis
1 model

Best Grand Touring All Season Tires in 175/55R20

All Grand Touring All Season tires
Bridgestone Ecopia EP500Comfort

The Bridgestone Ecopia EP500 is a solid choice for drivers prioritizing comfort and noise in a grand touring all-season tire.

  • Comfort and noise scores of 8 match the category averages, making it a pleasant choice for long drives.
  • Wet grip score of 7.5 slightly exceeds the category average of 7.4, providing reliable performance in rainy conditions.

Lack of a treadwear warranty could be a significant concern for cost-conscious buyers who want assurance on longevity.

Treadwear 440Traction A
Spec score70estimated
Details
Fitment

Vehicles Using 175/55R20

2021 BMW
i32020 BMW
i32019 BMW
i32018 BMW
i32017 BMW
i32016 BMW
i32015 BMW
i3
Browse

Popular Brands in 175/55R20

Bridgestone · 1
Size decoded

What 175/55R20 Means

175/55R20 designates a tire 175 mm (6.9") wide with a sidewall 55% as tall as it is wide — about 96 mm (3.8") — mounted on a 20-inch wheel. That works out to an overall diameter of roughly 27.6", a circumference of about 86.6", and approximately 731 revolutions per mile. Exact figures vary slightly by manufacturer and tread design.

96 mm

Sidewall height

27.6"

Overall diameter

86.6"

Circumference

731

Revs per mile

Of the 1 175/55R20 tire models we track, the most common category is grand touring all season (1 model) — a good indicator of the kind of vehicles and driving this size is designed for.

Before you buy

Frequently Asked Questions

What does 175/55R20 mean?
175/55R20 breaks down as follows: 175mm is the tire's section width (the widest point), 55 is the aspect ratio (sidewall height as a percentage of width), R means radial construction, and 20 is the wheel diameter in inches.
What vehicles use 175/55R20 tires?
175/55R20 is a common fitment for vehicles like the 2021 BMW i3, 2020 BMW i3, 2019 BMW i3, 2018 BMW i3 and others. Always confirm your specific trim's fitment before purchasing.
How tall is a 175/55R20 tire?
A 175/55R20 tire has a sidewall height of about 96 mm (3.8") and an overall diameter of roughly 27.6", turning approximately 731 revolutions per mile. Actual dimensions vary slightly by manufacturer and model, so confirm against your vehicle's placard before changing sizes.

175/55R20 Research Guides

Buying Guide

How to Read a Tire Size

Understand width, aspect ratio, rim diameter, load index, and speed rating before you buy.

Read guide

Buying Guide

Tire Load Index Explained

Learn how load index works, what common ratings mean, and how to avoid under-spec tire choices.

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Buying Guide

When to Replace Tires

Know the real tread-depth, age, and wear-pattern signs that mean your tires are ready to be replaced.

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Confirm 175/55R20 fits your vehicle

Wheel size can vary by trim and option package. Enter your year, make, model, and trim to verify fitment before you order.

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