Tire Size Guide

345/30R20 Tires

Compare 3 available models across 1 categories, then confirm fitment for your vehicle.

Our Top Pick in 345/30R20
Michelin Pilot Sport 4S
Ultra High Performance SummerPerformance

The Michelin Pilot Sport 4S is a standout choice for drivers who prioritize dry and wet grip above all else.

Dry grip score of 10 leads the ultra high performance summer category, ideal for spirited driving. Wet grip score of 9 significantly exceeds the category average of 7.6, enhancing safety in wet conditions. 30,000-mile treadwear warranty is a rarity in this performance segment, offering peace of mind for longer usage.
69Spec score (est.)
Full analysis
3 models

Best Ultra High Performance Summer Tires in 345/30R20

All Ultra High Performance Summer tires

The Michelin Pilot Sport 4S is a standout choice for drivers who prioritize dry and wet grip above all else.

  • Dry grip score of 10 leads the ultra high performance summer category, ideal for spirited driving.
  • Wet grip score of 9 significantly exceeds the category average of 7.6, enhancing safety in wet conditions.

The 30,000-mile treadwear warranty may fall short for drivers who cover extensive distances annually.

30,000 mi warrantyTreadwear 300Traction AA
Spec score69estimated
Details

The Michelin Pilot Sport Cup 2 CN is tailored for drivers who prioritize dry grip and handling, scoring 9 in both areas, which is above the category average of 8.7.

  • Dry grip score of 9 surpasses the category average of 8.7, making it a strong choice for track enthusiasts.
  • Handling score of 9 ensures precise control and responsiveness, aligning well with performance-focused driving.

Wet grip performance is below the category average, which could be a concern for those frequently driving in wet conditions.

Treadwear 240
Spec score56estimated
Details

The ADVAN Neova AD08 R is tailored for drivers who value dry grip and handling above all else.

  • Dry grip score of 9, which is above the category average of 8.7, making it a strong choice for spirited driving.
  • Handling rating of 9 matches its dry grip, providing precise control and responsiveness.

Wet grip performance is below average for the category, which may not suit drivers in rainy climates.

Spec scoreestimated
Details
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Popular Brands in 345/30R20

Size decoded

What 345/30R20 Means

345/30R20 designates a tire 345 mm (13.6") wide with a sidewall 30% as tall as it is wide — about 104 mm (4.1") — mounted on a 20-inch wheel. That works out to an overall diameter of roughly 28.1", a circumference of about 88.4", and approximately 716 revolutions per mile. Exact figures vary slightly by manufacturer and tread design.

104 mm

Sidewall height

28.1"

Overall diameter

88.4"

Circumference

716

Revs per mile

Of the 3 345/30R20 tire models we track, the most common category is ultra high performance summer (3 models) — a good indicator of the kind of vehicles and driving this size is designed for.

Before you buy

Frequently Asked Questions

What does 345/30R20 mean?
345/30R20 breaks down as follows: 345mm is the tire's section width (the widest point), 30 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 345/30R20 tires?
345/30R20 is a standard tire size found on many trucks, SUVs, and crossovers. Use our vehicle search to confirm your exact fitment.
How tall is a 345/30R20 tire?
A 345/30R20 tire has a sidewall height of about 104 mm (4.1") and an overall diameter of roughly 28.1", turning approximately 716 revolutions per mile. Actual dimensions vary slightly by manufacturer and model, so confirm against your vehicle's placard before changing sizes.

345/30R20 Research Guides

Confirm 345/30R20 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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