Tire Size Guide

205/40R18 Tires

Compare 7 available models across 3 categories, then confirm fitment for your vehicle.

Our Top Pick in 205/40R18
Pirelli P Zero
Ultra High Performance SummerPerformance

The Pirelli P Zero is a strong choice for those who prioritize dry grip and handling precision above all else.

Dry grip and handling scores are both perfect 10s, setting a high bar for the ultra-high-performance summer category. Wet grip rating of 9 surpasses the category average of 7.6, making it reliable in summer rain. Treadwear warranty of 50,000 miles is above the category average, offering extended durability for a performance tire.
77Spec score (est.)
Full analysis
5 models

Best Ultra High Performance Summer Tires in 205/40R18

All Ultra High Performance Summer tires
Pirelli P ZeroPerformance

The Pirelli P Zero is a strong choice for those who prioritize dry grip and handling precision above all else.

  • Dry grip and handling scores are both perfect 10s, setting a high bar for the ultra-high-performance summer category.
  • Wet grip rating of 9 surpasses the category average of 7.6, making it reliable in summer rain.

If comfort and noise are significant factors, the P Zero's average scores in these areas may not meet your expectations.

Treadwear 220Traction AA
Spec score77estimated
Details

The Goodyear Eagle F1 Asymmetric 3 RunOnFlat targets drivers who prioritize wet grip, with a score of 9 that stands out in the ultra-high-performance summer category.

  • Wet grip score of 9 significantly exceeds the category average of 7.6, making it a strong performer in rainy conditions.
  • Dry grip and handling both score 8, aligning well with the segment's expectations for spirited driving.

Lack of a treadwear warranty could be a concern for drivers who prioritize tire longevity and cost predictability.

Treadwear 300Traction AA
Spec score76estimated
Details

The Pirelli P Zero Run Flat (PZ4) is a solid choice for those who prioritize wet grip, boasting a score of 9, which is well above the category average of 7.6.

  • Wet grip score of 9 is notably above the category average of 7.6, making it a strong performer in rainy conditions.
  • Treadlife score of 7.5 is respectable for an ultra-high-performance summer tire, given the category's focus on grip and handling.

The 'R' speed rating may not satisfy drivers seeking the highest speed capabilities typical of ultra-high-performance summer tires.

Treadwear 280Traction AA
Spec score75estimated
Details

The Dunlop Sport Maxx RT RunOnFlat is a solid choice for those who prioritize wet grip, scoring a 9 against the category average of 7.6.

  • Wet grip score of 9 significantly exceeds the category average of 7.6, making it a strong performer in wet conditions.
  • Dry grip and handling both score 8, which is competitive for spirited driving in summer conditions.

The lack of a treadwear warranty and a low treadwear rating of 240 suggest a shorter lifespan, which may not suit long-distance drivers.

Treadwear 240Traction AA
Spec score73estimated
Details
Show 1 more ultra high performance summer option
Michelin Pilot Sport 4

20,000 mi warranty · Treadwear 320

68
1 model

Best Performance All-Season Tires in 205/40R18

All Performance All-Season tires
Nitto Neo GenPerformance

The Nitto Neo Gen is a compelling option for drivers who prioritize dry grip and handling in their ultra-high performance summer tires.

  • Perfect dry grip and handling scores of 10, surpassing the category average of 8.7, make it a strong choice for spirited driving.
  • Wet grip rating of 9 is well above the category average of 7.6, providing confidence in rainy conditions.

Lack of a treadwear warranty could be a concern for budget-conscious buyers looking for long-term value.

Treadwear 280Traction AA
Spec score79estimated
Details
1 model

Best Winter Tires in 205/40R18

All Winter tires
Vredestein Wintrac ProValue3PMSF Snow

The Vredestein Wintrac Pro is a solid option for drivers dealing with moderate snow conditions, thanks to its snow traction score of 8.

  • Snow traction score of 8, which is competitive for winter conditions and suitable for moderate snow coverage.
  • Comfort score of 6.2 matches the winter category average, making it a decent choice for longer drives in cold conditions.

Lack of a treadwear warranty makes it less appealing for budget-conscious buyers who prioritize long-term cost efficiency.

Traction NONE
Spec scoreestimated
Details
Fitment

Vehicles Using 205/40R18

+ 4 more vehicles use this size

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Popular Brands in 205/40R18

Size decoded

What 205/40R18 Means

205/40R18 designates a tire 205 mm (8.1") wide with a sidewall 40% as tall as it is wide — about 82 mm (3.2") — mounted on a 18-inch wheel. That works out to an overall diameter of roughly 24.5", a circumference of about 76.8", and approximately 825 revolutions per mile. Exact figures vary slightly by manufacturer and tread design.

82 mm

Sidewall height

24.5"

Overall diameter

76.8"

Circumference

825

Revs per mile

Of the 7 205/40R18 tire models we track, the most common category is ultra high performance summer (5 models), followed by performance all-season (1) — a good indicator of the kind of vehicles and driving this size is designed for.

Before you buy

Frequently Asked Questions

What does 205/40R18 mean?
205/40R18 breaks down as follows: 205mm is the tire's section width (the widest point), 40 is the aspect ratio (sidewall height as a percentage of width), R means radial construction, and 18 is the wheel diameter in inches.
What vehicles use 205/40R18 tires?
205/40R18 is a common fitment for vehicles like the 2024 Mini Cooper Hardtop, 2024 Mini Cooper Convertible, 2023 Mini Cooper Convertible, 2023 Mini Cooper Hardtop and others. Always confirm your specific trim's fitment before purchasing.
How tall is a 205/40R18 tire?
A 205/40R18 tire has a sidewall height of about 82 mm (3.2") and an overall diameter of roughly 24.5", turning approximately 825 revolutions per mile. Actual dimensions vary slightly by manufacturer and model, so confirm against your vehicle's placard before changing sizes.

205/40R18 Research Guides

Confirm 205/40R18 fits your vehicle

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