Lowest price
Gripmax Suregrip Pro Sport
305/30R21
SummerPassenger
Price
$173.96
at SimpleTire4.6(8,900)
Excl. install
Price
$173.96
at SimpleTire
305/30R21Tires
13 prices · 7 brands · 1 retailers · Updated 21 minutes ago
Cheapest Price
$173.96
at SimpleTire (excl. installation)
Prices updated: July 6, 2026
13 of 13 offers for 305/30R21
Price comparison — 305/30R21
Showing 8 of 13 tires
Lexani Volt Ec
305/30R21
Load104 · 1,984 lbsSpeedY · 186 mph
All-seasonPassenger
Price
$196.96
at SimpleTire4.6(8,900)
Excl. install
Price
$196.96
at SimpleTire
Goodyear Eagle Touring
305/30R21
Load104 · 1,984 lbsSpeedH · 130 mph
All-seasonPassenger
Price
$215.96
at SimpleTire4.6(8,900)
Excl. install
Price
$215.96
at SimpleTire
Price
$221.96
at SimpleTire4.6(8,900)
Excl. install
Price
$221.96
at SimpleTire
Hankook Ion I Cept Iw01
305/30R21
Load104 · 1,984 lbsSpeedV · 149 mph
WinterPassenger
Price
$367.99
at SimpleTire4.6(8,900)
Excl. install
Price
$367.99
at SimpleTire
Continental Extremecontact Sport 02
305/30R21
SummerPassenger
Price
$432.99
at SimpleTire4.6(8,900)
Excl. install
Price
$432.99
at SimpleTire
Continental Procontact Rx
305/30R21
Load104 · 1,984 lbsSpeedH · 130 mph
All-seasonPassenger
Price
$442.20
at SimpleTire4.6(8,900)
Excl. install
Price
$442.20
at SimpleTire
Continental Extremecontact Dws06 Plus
305/30R21
All-seasonPassenger
Price
$446.99
at SimpleTire4.6(8,900)
Excl. install
Price
$446.99
at SimpleTire
Prices per tire · Sales tax may apply · Updated 21 minutes ago · Submit a price correction
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What Does 305/30R21 Mean?
305
Width
millimetres
30
Profile
% of width
21
Rim
inches
A 305mm wide tire with a sidewall height equal to 30% of the width (91.5mm), fitting a 21-inch rim — a common passenger tire size in the US market.
FAQ — 305/30R21 Tires
Where can I buy 305/30R21 tires online in the USA?+
The cheapest 305/30R21 tires we track start at $173.96 from SimpleTire. Tire Rack, SimpleTire, Priority Tire, and other national retailers ship nationwide — use the table above to compare.
How much does a 305/30R21 tire cost in the USA?+
305/30R21 tires typically range from about $173.96 for value brands up to $382.71 or more for premium performance tires. Installation is usually $15–$25 per tire extra.
Is 305/30R21 the right tire for my car?+
Check your door-jamb sticker or owner's manual. Many vehicles that use 305/30R21 also have approved alternative sizes — see our vehicle fitment pages for common models.
How much does tire installation cost for 305/30R21?+
Most US tire shops charge $15–$25 per tire for mount and balance. Wheel alignment is often $75–$150 extra. Retailers like Tire Rack let you ship to a local installer at checkout.
Is 305/30R21 the same as 305/30R21?+
Yes — same size. Both describe a 305mm wide tire with a 30% sidewall on a 21-inch rim.
Related Tire Sizes
Looking for a specific brand? Gripmax, Lexani, Goodyear, Laufenn. City hubs: Houston, Los Angeles, Chicago, New York. Seasons: all-season, winter.