Tire Size Guide

325/30R21 Tires

Compare 34 available models across 5 categories, then confirm fitment for your vehicle.

Our Top Pick in 325/30R21
Michelin Pilot Sport All Season 4
Ultra High Performance SummerPerformance

The Michelin Pilot Sport All Season 4 is a strong contender for drivers who prioritize grip and longevity in an ultra-high-performance summer tire.

Dry grip rating of 9 matches the best in the ultra-high-performance summer category, making it ideal for spirited driving. Wet grip score of 9 exceeds the category average of 7.6, providing confidence in rainy conditions. 45,000-mile treadwear warranty is well above the category average of 37,754 miles, offering longer-lasting performance.
78Spec score (est.)
Full analysis
23 models

Best Ultra High Performance Summer Tires in 325/30R21

All Ultra High Performance Summer tires

The Michelin Pilot Sport All Season 4 is a strong contender for drivers who prioritize grip and longevity in an ultra-high-performance summer tire.

  • Dry grip rating of 9 matches the best in the ultra-high-performance summer category, making it ideal for spirited driving.
  • Wet grip score of 9 exceeds the category average of 7.6, providing confidence in rainy conditions.

If comfort is a top priority, consider alternatives with higher comfort scores like the Pirelli P Zero (PZ4).

45,000 mi warrantyTreadwear 540Traction AA
Spec score78estimated
Details

The Dunlop SP Sport Maxx GT is a compelling choice for performance enthusiasts who value top-notch dry grip and handling.

  • Dry grip score of 10 and handling score of 10 — both are at the top of the ultra-high-performance summer category.
  • Wet grip rating of 9 surpasses the category average of 7.6, making it a strong performer in rainy conditions.

Average comfort and noise levels may deter those who prioritize a quieter and smoother ride for daily use.

Treadwear 240Traction AA
Spec score78estimated
Details

The ADVAN Sport V107 is a compelling option for drivers who prioritize dry and wet grip above all else.

  • Perfect dry grip score of 10, surpassing the category average of 8.7, making it a top choice for high-performance driving.
  • Wet grip rating of 9, well above the category average of 7.6, ensures reliable performance in rainy conditions.

The lower treadwear warranty of 20,000 miles may deter those seeking longer-lasting performance tires.

Treadwear 240Traction AA
Spec score78estimated
Details

The Dunlop Sport Maxx Race 2 is a tire for those who prioritize track performance above all else.

  • Perfect dry grip score of 10, significantly above the category average of 8.7, ideal for track-focused performance.
  • Wet grip rating of 9 outpaces the category average of 7.6, providing reliable performance in less-than-ideal conditions.

The lack of a treadwear warranty and low treadwear rating make it a costly option for high-mileage users.

Treadwear 80Traction AA
Spec score77estimated
Details
Show 19 more ultra high performance summer options
Pirelli P Zero

Treadwear 220

77
Yokohama ADVAN NEOVA AD09

55,000 mi warranty · Treadwear 200

73
Yokohama ADVAN Sport

55,000 mi warranty · Treadwear 180

73
Yokohama ADVAN Sport V105S

55,000 mi warranty · Treadwear 550

69
Michelin Pilot Sport 4S

30,000 mi warranty · Treadwear 300

69
Michelin Pilot Super Sport

30,000 mi warranty · Treadwear 300

69
Kelly Edge Sport

45,000 mi warranty

68
Westlake SA07 Sport

45,000 mi warranty

68
Hankook iON evo SUV

40,000 mi warranty

65
Toyo Tire Proxes Sport A/S

40,000 mi warranty

65
Michelin Pilot Sport 4

20,000 mi warranty · Treadwear 320

61
Michelin Pilot Sport 4 SUV

20,000 mi warranty · Treadwear 220

59
Yokohama ADVAN Apex

25,000 mi warranty · Treadwear 250

48
Pirelli P Zero PZ4 Sport

Specs on detail page

Bridgestone Potenza S007 A

Specs on detail page

Atturo AZ850

Specs on detail page

Pirelli P Zero Corsa PZC4

Specs on detail page

6 models

Best Winter Tires in 325/30R21

All Winter tires

The Goodyear Ultra Grip Performance+ is a winter tire that prioritizes dry grip and handling, with scores of 7.5 in both categories, exceeding the winter average.

  • Dry grip score of 7.5 exceeds the winter category average of 7.1, making it a solid choice for cold, dry roads.
  • Handling score of 7.5 suggests responsive performance, which is above average for winter tires.

Without 3PMSF certification, it's not the best choice for areas with severe winter conditions.

Spec scoreestimated
Details

The Hakkapeliitta R5 EV is a solid choice for winter drivers who prioritize treadlife and dry grip.

  • Treadlife score of 10 and an 80,000-mile warranty far exceed the winter category average of 54,431 miles.
  • Dry grip rating of 7.5 surpasses the category average of 7.1, which is beneficial for those unexpected dry winter days.

Lacks 3PMSF certification, which may not meet the needs of drivers in areas with severe snow conditions.

Spec scoreestimated
Details

The Pirelli Winter Sottozero 3 is a solid choice for drivers seeking a winter tire with a long treadwear warranty.

  • 50,000-mile treadwear warranty is notable for a winter tire, offering longevity that many competitors don't match.
  • Dry grip score of 8.5 exceeds the winter category average of 7.1, making it a strong performer on clear roads.

Lack of ice traction data may be a concern for drivers who frequently encounter icy roads.

Spec scoreestimated
Details

The Nokian Hakkapeliitta 10EV is a winter tire that stands out for its dry grip and handling, both scoring 8.5, which are well above the category averages.

  • Dry grip score of 8.5 exceeds the winter category average of 7.1, providing strong performance on cold, dry roads.
  • Handling score of 8.5 is above average, making it responsive and controlled in winter conditions.

Lack of 3PMSF certification may deter those seeking assured winter performance in severe conditions.

Spec scoreestimated
Details
Show 2 more winter options
Dunlop SP Winter Sport 3D

Specs on detail page

Continental VikingContact 7

Specs on detail page

2 models

Best Performance All-Season Tires in 325/30R21

All Performance All-Season tires

The Hankook Ventus S1 AS is a compelling choice for drivers who prioritize dry grip and handling above all else.

  • Perfect dry grip score of 10, surpassing the category average of 8.7, ideal for spirited driving on dry roads.
  • Handling score of 10 aligns with its dry grip, making it a strong performer for drivers who prioritize cornering and responsiveness.

Wet grip performance is below average for the category, making it less suitable for drivers in rainy climates.

50,000 mi warrantyTreadwear 560Traction A
Spec score73estimated
Details

The Uniroyal Power Paw A/S is a solid choice for drivers who value dry grip and handling in their performance all-season tires.

  • Dry grip score of 9 exceeds the category average of 8.4, making it a strong performer in dry conditions.
  • Handling is rated at 9, providing responsive steering and control, which is ideal for spirited driving.

Limited wet grip compared to key competitors, which could be a concern in rainy climates.

45,000 mi warranty
Spec score68estimated
Details
2 models

Best Grand Touring All Season Tires in 325/30R21

All Grand Touring All Season tires
Michelin CrossClimate2Comfort3PMSF Snow

The Michelin CrossClimate2 is a good match for drivers who value comfort and quietness in their grand touring all-season tires.

  • Comfort and noise scores of 8 match the category average, ensuring a smooth and quiet ride typical of grand touring all-season tires.
  • Treadlife rating of 8.17 and a 60,000-mile warranty provide solid longevity, slightly below the category average but still competitive.

Wet grip performance is notably below average, which could be a dealbreaker for drivers in rainy climates.

60,000 mi warrantyTreadwear 640Traction B
Spec score71estimated
Details

The Continental ProContact RX is tailored for drivers who prioritize dry grip and handling in a touring all-season tire.

  • Dry grip score of 9.5 significantly exceeds the category average of 7.8, making it a standout for dry road performance.
  • Handling score of 9.5 suggests precise steering response, ideal for drivers who value agility in a touring tire.

The 40,000-mile treadwear warranty is a significant drawback for those seeking long-lasting tires, as it falls short of the category average.

45,000 mi warrantyTreadwear 400Traction A
Spec score67estimated
Details
1 model

Best Max Performance Summer Tires in 325/30R21

All Max Performance Summer tires

The Yokohama BluEarth V905 is tailored for drivers who demand top-tier dry grip and handling precision.

  • Dry grip and handling scores are both a perfect 10, setting a high bar for max performance summer tires.
  • Treadwear warranty of 55,000 miles is significantly higher than the category average of 33,614 miles — a rarity in this segment.

Wet grip lags behind the category average, making it less suitable for those who frequently drive in wet conditions.

55,000 mi warrantyTreadwear 550
Spec score69estimated
Details
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Popular Brands in 325/30R21

Size decoded

What 325/30R21 Means

325/30R21 designates a tire 325 mm (12.8") wide with a sidewall 30% as tall as it is wide — about 98 mm (3.8") — mounted on a 21-inch wheel. That works out to an overall diameter of roughly 28.7", a circumference of about 90.1", and approximately 703 revolutions per mile. Exact figures vary slightly by manufacturer and tread design.

98 mm

Sidewall height

28.7"

Overall diameter

90.1"

Circumference

703

Revs per mile

Of the 34 325/30R21 tire models we track, the most common category is ultra high performance summer (23 models), followed by winter (6) — a good indicator of the kind of vehicles and driving this size is designed for.

Before you buy

Frequently Asked Questions

What does 325/30R21 mean?
325/30R21 breaks down as follows: 325mm 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 21 is the wheel diameter in inches.
What vehicles use 325/30R21 tires?
325/30R21 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 325/30R21 tire?
A 325/30R21 tire has a sidewall height of about 98 mm (3.8") and an overall diameter of roughly 28.7", turning approximately 703 revolutions per mile. Actual dimensions vary slightly by manufacturer and model, so confirm against your vehicle's placard before changing sizes.

325/30R21 Research Guides

Confirm 325/30R21 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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