Buy 175/80 R15 Tyres

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175/80 R15 Numbers Explained

This size is commonly used on light vans and older 4x4s. The first number is 175. 175 is the width of the tyre in mm. The second number is the aspect ratio. In this case, it is 80, meaning the height is 80% of 175mm, or 140mm. R15 means it is a radial tyre designed to fit a 15-inch rim. The overall diameter is 661mm. The tall sidewall gives the tyre cushioning on rougher roads. Tyres.co.uk sells this size, including C-marked versions.

Part of the sizeValueWhat it means
Section width 175 The width of the tyre across the tread, measured in millimetres.
Profile (aspect ratio) 80 Sidewall height as a percentage of the width - here, 80% of 175 mm (about 140 mm).
Construction R Radial construction, which is what nearly all road tyres use.
Rim diameter 15 The wheel diameter the tyre fits, measured in inches.
Your tyre dimensions
MeasurementValue
Sidewall height 140.0 mm (5.51 in)
Overall diameter 661 mm (26.0 in)
Circumference 2,077 mm (81.8 in)
Revolutions 775 per mile · 482 per km
Equivalent sizes
SizeOverall diameter
195/65 R16 660 mm · -0.2%
195/80 R14 668 mm · +1.0%
195/70 R15 654 mm · -1.1%
175/75 R16 669 mm · +1.2%
185/80 R14 652 mm · -1.4%
165/80 R15 645 mm · -2.4%