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255/40 R18 tyres: prices, reviews & buying guide
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73 dB
Free delivery
from 2 tyres purchased
Unit price
Free delivery
from 2 tyres purchased
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B
73 dB
Free delivery
from 2 tyres purchased
Unit price
Free delivery
from 2 tyres purchased
How much does a 255/40 R18 tyre cost?
Below you'll find an overview of prices for 255/40 R18 tyres. These averages are based on the latest listings from our comparison site this month.
What are the most popular 255 40 R18 tyre brands?
Not sure which brand is best for your 255 40 R18 tyres? These are the top 3 brands drivers have been searching for between March 17, 2026 and June 15, 2026.
Comparison of 255/40 R18 tires
Latest 255/40 R18 tire tests?
No recent test is currently available for this dimension.
How to choose the right 255 40 R18 tyres?
What do 255 40 18 mean on a tyre?
Here’s what the 255/40 R18 marking means on your tyre:
- 255 is the tyre’s width, measured in millimetres. So this tyre is 255 mm wide, or 25.5 cm.
- 40 is the sidewall height, expressed as a percentage of the width. It’s 40% of mm, which equals around 10 cm.
- 18 is the internal diameter of the tyre in inches (1 inch = 2.54 cm). 18 inches equals 45 cm.
In addition to these markings, tyres also have load and speed ratings. For your vehicle, it’s always possible to choose tyres with higher load and speed ratings than the original fitment. By clicking on your size in the list below, the next page will only display compatible tyres.
Where to buy cheap 255/40 R18 tyres in the UK?
Compare 255/40 R18 tyre prices
The easiest way to find the best deals on 255/40 R18 tyres is to use a tyre price comparison site like TyreComp.co.uk. In just a few clicks, you’ll see offers from trusted UK retailers.
How to spot discounts on 255/40 R18 tyres
Although we strive every day to be as comprehensive as possible, if you don’t find the perfect offer on our site, you can also check the websites of other retailers or alternative tyre comparison platforms. A quick Google search like '255//40 R18 tyre deals' may also help you find a good bargain.
Should you buy second-hand 255/40 R18 tyres?
Another way to save money on tyres could be to consider second-hand options. However, the price difference between used tyres and entry-level new ones is often minimal, which is why we don’t think second-hand tyres are really worth it. For this reason, we generally don’t recommend it.
