Lowest price
Continental Sportcontact 6
255/45R21
Load106 · 2,094 lbsSpeedY · 186 mph
SummerPassenger
Price
$332.99
at SimpleTire4.6(8,900)
Excl. install
Price
$332.99
at SimpleTire
255/45R21Tires
6 prices · 4 brands · 1 retailers · Updated 1 month ago
Cheapest Price
$332.99
at SimpleTire (excl. installation)
Prices updated: July 6, 2026
6 of 6 offers for 255/45R21
Price comparison: 255/45R21
Showing 6 of 6 tiresContinental Crosscontact Rx
255/45R21
Load106 · 2,094 lbsSpeedV · 149 mph
All-seasonPassenger
Price
$352.06
at SimpleTire4.6(8,900)
Excl. install
Price
$352.06
at SimpleTire
Bridgestone Potenza Sport
255/45R21
Load106 · 2,094 lbsSpeedY · 186 mph
SummerPassenger
Price
$463.99
at SimpleTire4.6(8,900)
Excl. install
Price
$463.99
at SimpleTire
Pirelli P Zero Pz4 Sport Elect
255/45R21
Load106 · 2,094 lbsSpeedW · 168 mph
SummerPassenger
Price
$479.39
at SimpleTire4.6(8,900)
Excl. install
Price
$479.39
at SimpleTire
Nokian Hakkapeliitta R5 Ev
255/45R21
Load106 · 2,094 lbsSpeedT · 118 mph
WinterPassenger
Price
$543.24
at SimpleTire4.6(8,900)
Excl. install
Price
$543.24
at SimpleTire
Pirelli Scorpion Ms Elect
255/45R21
Load106 · 2,094 lbsSpeedV · 149 mph
All-seasonPassenger
Price
$580.36
at SimpleTire4.6(8,900)
Excl. install
Price
$580.36
at SimpleTire
Prices per tire · Sales tax may apply · Updated 1 month ago · Submit a price correction
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What Does 255/45R21 Mean?
255
Width
millimetres
45
Profile
% of width
21
Rim
inches
A 255mm wide tire with a sidewall height equal to 45% of the width (114.8mm), fitting a 21-inch rim, a common passenger tire size in the US market.
FAQ: 255/45R21 Tires
Where can I buy 255/45R21 tires online in the USA?+
The cheapest 255/45R21 tires we track start at $332.99 from SimpleTire. Tire Rack, SimpleTire, Priority Tire, and other national retailers ship nationwide; use the table above to compare.
How much does a 255/45R21 tire cost in the USA?+
255/45R21 tires typically range from about $332.99 for value brands up to $732.58 or more for premium performance tires. Installation is usually $15–$25 per tire extra.
Is 255/45R21 the right tire for my car?+
Check your door-jamb sticker or owner's manual. Many vehicles that use 255/45R21 also have approved alternative sizes; see our vehicle fitment pages for common models.
How much does tire installation cost for 255/45R21?+
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 255/45R21 the same as 255/45R21?+
Yes, same size. Both describe a 255mm wide tire with a 45% sidewall on a 21-inch rim.
Related Tire Sizes
Looking for a specific brand? Continental, Bridgestone, Pirelli, Nokian. City hubs: Houston, Los Angeles, Chicago, New York. Seasons: all-season, winter.