How much is a 235/40R18 tire?

At Subphaisal, 235/40R18 tires start at ฿3,150/tire, with 12 options from 8 brands (YOKOHAMA, BRIDGESTONE, MICHELIN, CONTINENTAL, DAYTON, DUNLOP, FIRESTONE, MAXXIS). 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 235/40R18 mean?

235/40R18 is a tire 235 mm wide with a 94 mm sidewall (40% of the width), for a 18-inch rim. Its overall diameter is 645 mm, or about 25.4 inches.

What cars use 235/40R18 tires?

Cars that come with 235/40R18 as the factory size include HONDA Civic. 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 235/40R18 tires in stock?

235/40R18 tires in stock now are from production years 2026, 2025. Every product page shows the actual production year from the DOT code on the sidewall before you order.

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235/40R18 Tires

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Size 235/40R18 ✕Clear all

Made 2026

BrandModelTypeSizeYearPrice / tire

DAYTONDAYTON DT30Comfort235/40R182026Comfort235/40R182026฿3,150/tire MAXXISMAXXIS PREMITRA HP5Comfort235/40R182026Comfort235/40R182026฿3,200/tire FIRESTONEFIRESTONE FIREHAWK SPORT 01Performance235/40R182026Performance235/40R182026~~฿3,890~~฿3,490/tire CONTINENTALCONTINENTAL MAXCONTACT MC 7Everyday235/40R182026Everyday235/40R182026฿4,290/tire YOKOHAMAYOKOHAMA BluEarth-ES ES32Fuel saving235/40R182026Fuel saving235/40R182026฿4,290/tire DUNLOPDUNLOP SP SPORT MAXX 060Performance235/40R182026Performance235/40R182026฿4,290/tire YOKOHAMAYOKOHAMA ADVAN APEX V601Everyday235/40R182026Everyday235/40R182026฿4,790/tire BRIDGESTONEBRIDGESTONE POTENZA SPORT EVOEveryday235/40R182025Everyday235/40R182025~~฿7,310~~฿4,990/tire YOKOHAMAYOKOHAMA ADVAN DECIBEL V553Comfort235/40R182026Comfort235/40R182026฿5,190/tire BRIDGESTONEBRIDGESTONE TURANZA 6Comfort235/40R182026Comfort235/40R182026~~฿7,690~~฿6,290/tire MICHELINMICHELIN PRIMACY 5Comfort235/40R182026Comfort235/40R182026฿6,990/tire MICHELINMICHELIN PILOT SPORT 5Performance235/40R182026Performance235/40R182026฿6,990/tire DUNLOPDUNLOP SP SPORT LM705Comfort235/40R18Comfort235/40R18-Out of stockDAYTONDAYTON DT30Comfort235/40R18Comfort235/40R18-Out of stockBRIDGESTONEBRIDGESTONE POTENZA SPORTPerformance235/40R18Performance235/40R18-Out of stockBRIDGESTONEBRIDGESTONE POTENZA RE005Performance235/40R18Performance235/40R18-Out of stockBRIDGESTONEBRIDGESTONE POTENZA SPORT EVOEveryday235/40R18Everyday235/40R18-Out of stock

How to read 235/40R18

The size 235/40R18 gives three measurements: tread width 235 mm, sidewall height 94 mm (40% of the width), and rim size 18 in. Overall diameter is 645 mm (about 25.4 in). One full turn covers 2.03 m, or 493 turns per km.

Width235 mm

Sidewall94 mm

Rim18 in

Overall diameter645 mm

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

Cars with 235/40R18 as the factory size

Honda Civic · 2021–present (FE)

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.

265/35R188 items215/45R1810 items245/40R1821 items225/40R1818 items255/35R188 items285/35R181 item225/45R1825 items255/40R1814 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.