Lowest price
Gladiator X Comp H P
315/30R18
All-seasonPassenger
Price
$220.96
at SimpleTire4.6(8,900)
Excl. install
Price
$220.96
at SimpleTire
315/30R18Tires
6 prices · 6 brands · 1 retailers · Updated just now
Cheapest Price
$220.96
at SimpleTire (excl. installation)
Prices updated: July 6, 2026
6 of 6 offers for 315/30R18
Price comparison — 315/30R18
Showing 6 of 6 tires
Kenda Vezda Summer Mp Plus Kr20ax
315/30R18
SummerPassenger
Price
$289.80
at SimpleTire4.6(8,900)
Excl. install
Price
$289.80
at SimpleTire
Price
$409.79
at SimpleTire4.6(8,900)
Excl. install
Price
$409.79
at SimpleTire
Falken Azenis Rt 615k Plus
315/30R18
Load98 · 1,653 lbsSpeedW · 168 mph
SummerPassenger
Price
$412
at SimpleTire4.6(8,900)
Excl. install
Price
$412
at SimpleTire
Price
$479
at SimpleTire4.6(8,900)
Excl. install
Price
$479
at SimpleTire
Yokohama Advan A052
315/30R18
Load98 · 1,653 lbsSpeedY · 186 mph
SummerPassenger
Price
$557.99
at SimpleTire4.6(8,900)
Excl. install
Price
$557.99
at SimpleTire
Prices per tire · Sales tax may apply · Updated just now · Submit a price correction
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What Does 315/30R18 Mean?
315
Width
millimetres
30
Profile
% of width
18
Rim
inches
A 315mm wide tire with a sidewall height equal to 30% of the width (94.5mm), fitting a 18-inch rim — a common passenger tire size in the US market.
FAQ — 315/30R18 Tires
Where can I buy 315/30R18 tires online in the USA?+
The cheapest 315/30R18 tires we track start at $220.96 from SimpleTire. Tire Rack, SimpleTire, Priority Tire, and other national retailers ship nationwide — use the table above to compare.
How much does a 315/30R18 tire cost in the USA?+
315/30R18 tires typically range from about $220.96 for value brands up to $486.11 or more for premium performance tires. Installation is usually $15–$25 per tire extra.
Is 315/30R18 the right tire for my car?+
Check your door-jamb sticker or owner's manual. Many vehicles that use 315/30R18 also have approved alternative sizes — see our vehicle fitment pages for common models.
How much does tire installation cost for 315/30R18?+
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 315/30R18 the same as 315/30R18?+
Yes — same size. Both describe a 315mm wide tire with a 30% sidewall on a 18-inch rim.
Related Tire Sizes
Looking for a specific brand? Gladiator, Kenda, Toyo, Falken. City hubs: Houston, Los Angeles, Chicago, New York. Seasons: all-season, winter.