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225/45 R18 tyres

Compare 225/45 R18 winter and summer tyres and order at ReifenDirekt.ch.

All 225/45 R18 tyres at ReifenDirekt.ch ↗

🔘 225/45 R18

Pick your size, compare offers at ReifenDirekt.ch and have them delivered to your home or straight to a partner garage for fitting.

ReifenDirekt.ch · Opens the partner shop ↗

📏 What does 225/45 R18 mean?

The tyre is 225 mm wide. The sidewall is 45 % of the width, about 101 mm. It fits a 18-inch rim. That gives an overall diameter of about 660 mm and a circumference of about 2,073 mm (calculated nominal values).

This size is typical for mid-size cars, SUVs and sportier models.

💡 Before you buy: a size approved for your car (as on your current tyres or in the manual), with at least the required load index and speed rating.

225Width in mm
45 %Sidewall height as % of width
18″Rim diameter in inches
≈ 660 mmØ

❄️ 225/45 R18 winter tyres

For the cold season the rule of thumb is October to Easter. According to the TCS, replace 225/45 R18 winter tyres at 4 mm of tread; the legal minimum is 1.6 mm.

View at ReifenDirekt.ch ↗

☀️ 225/45 R18 summer tyres

From Easter, 225/45 R18 summer tyres brake better on warm, dry and wet roads. The TCS recommends replacing them at 3 mm.

View at ReifenDirekt.ch ↗

🔧 Fitting made easy

At ReifenDirekt.ch you can have tyres delivered to your home or straight to a partner garage that fits them. Fitting prices are shown when you order.

📏 Other 18-inch sizes

225/40 R18235/55 R18235/45 R18235/60 R18255/55 R18245/40 R18

🔘 All tyre sizes

225/45 R17215/55 R17225/50 R17255/45 R19205/50 R17225/55 R17205/55 R16195/65 R15205/60 R16215/65 R16185/65 R15175/65 R14185/60 R15195/55 R16

All about tyres →

🛍️ Useful extras: tyre pressure, snow chains & winter

❓ Tyre FAQ

What does the tyre size 225/45 R18 mean?

225 mm wide, sidewall 45 % of the width, radial tyre for 18-inch rims; overall diameter about 660 mm.

When should I fit 225/45 R18 winter tyres?

Rule of thumb: October to Easter, at the latest before the first snow.

Where can I buy and fit 225/45 R18 tyres?

For example at ReifenDirekt.ch: delivery to your home or to a partner garage in Switzerland that does the fitting.

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