How much is a 225/40R18 tire?

At Subphaisal, 225/40R18 tires start at ฿1,990/tire, with 18 options from 8 brands (BRIDGESTONE, MICHELIN, YOKOHAMA, DAYTON, DUNLOP, ALLIANCE, CONTINENTAL, GT RADIAL). Prices vary by model; see the latest price of every model on this size page. Same price as in store, with free installation at our stores or free shipping nationwide from 1 tire.

What does 225/40R18 mean?

225/40R18 is a tire 225 mm wide with a 90 mm sidewall (40% of the width), for a 18-inch rim. Its overall diameter is 637 mm, or about 25.1 inches.

What cars use 225/40R18 tires?

Cars that come with 225/40R18 as the factory size include LEXUS IS, MERCEDES-BENZ C-Class (W204). Different trims of the same model may use different sizes. Confirm with the numbers on your current tire's sidewall.

What production year are the 225/40R18 tires in stock?

225/40R18 tires in stock now are from production years 2026, 2025, 2024. Every product page shows the actual production year from the DOT code on the sidewall before you order.

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225/40R18 Tires

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Size 225/40R18 ✕Clear all

Made 2025

BrandModelTypeSizeYearPrice / tire

DAYTONDAYTON DT30Comfort225/40R182025Comfort225/40R182025฿1,990/tire GT RADIALGT RADIAL SPORT ACTIVE2Everyday225/40R182025Everyday225/40R182025฿2,390/tire BRIDGESTONEBRIDGESTONE TURANZA T005Comfort225/40R182024Comfort225/40R182024~~฿8,090~~฿2,990/tire DAYTONDAYTON DT30Comfort225/40R182026Comfort225/40R182026฿3,150/tire ALLIANCEALLIANCE AL30Comfort225/40R182026Comfort225/40R182026฿3,690/tire YOKOHAMAYOKOHAMA BluEarth-GT AE51Comfort225/40R182026Comfort225/40R182026฿3,990/tire DUNLOPDUNLOP SP SPORT MAXX 060+Performance225/40R182026Performance225/40R182026฿4,190/tire DUNLOPDUNLOP BLUE RESPONSE TGComfort225/40R182026Comfort225/40R182026฿4,290/tire YOKOHAMAYOKOHAMA ADVAN APEX V601Everyday225/40R182026Everyday225/40R182026฿4,590/tire BRIDGESTONEBRIDGESTONE TURANZA T001Comfort225/40R182025Comfort225/40R182025~~฿8,090~~฿4,990/tire CONTINENTALCONTINENTAL MAXCONTACT MC 7Everyday225/40R182026Everyday225/40R182026฿4,990/tire BRIDGESTONEBRIDGESTONE TECHNO SPORTPerformance225/40R182026Performance225/40R182026฿5,250/tire MICHELINMICHELIN PILOT SPORT 5Performance225/40R182025Performance225/40R182025฿5,590/tire YOKOHAMAYOKOHAMA ADVAN DECIBEL V553Comfort225/40R182026Comfort225/40R182026฿5,990/tire MICHELINMICHELIN PRIMACY 5Comfort225/40R182025Comfort225/40R182025฿5,990/tire BRIDGESTONEBRIDGESTONE TURANZA 6Comfort225/40R182026Comfort225/40R182026~~฿7,850~~฿6,590/tire MICHELINMICHELIN PRIMACY 5Comfort225/40R182026Comfort225/40R182026฿7,490/tire MICHELINMICHELIN PILOT SPORT 4 EMTPerformance225/40R182026Performance225/40R182026฿7,990/tire YOKOHAMAYOKOHAMA BluEarth-GT AE51Comfort225/40R18Comfort225/40R18-Out of stockMAXXISMAXXIS PREMITRA HP6Everyday225/40R18Everyday225/40R18-Out of stock

How to read 225/40R18

The size 225/40R18 gives three measurements: tread width 225 mm, sidewall height 90 mm (40% of the width), and rim size 18 in. Overall diameter is 637 mm (about 25.1 in). One full turn covers 2.00 m, or 500 turns per km.

Width225 mm

Sidewall90 mm

Rim18 in

Overall diameter637 mm

To learn what each number means, read How to read a tire size

Cars with 225/40R18 as the factory size

Lexus IS · 2014–2020
Mercedes-Benz C-Class (W204) · 2008–2014

Based on the factory sizes we see most often. Different trims of the same model may use different sizes. Confirm with the numbers on your current tire's sidewall.

Other 18-inch sizes in stock

Other 18-inch tire sizes in stock now. Tap a size to see prices and models.

255/35R188 items265/35R188 items235/40R1812 items245/35R182 items215/45R1810 items245/40R1821 items285/35R181 item225/45R1825 items

The sizes above are not substitutes. They are just other sizes for the same rim that we have in stock. Switching sizes depends on your car's actual rim width, load index, and wheel-well clearance, which this website can't check. To switch sizes, send a photo of your current tire's sidewall and your car model to LINE @subphaisal and our technicians will help.