Caravan / Trailer tyre pressure calculator
Select Caravan or Trailer, then enter the maximum weight, exact tyre size, load rating and axle layout to calculate the required cold tyre pressure and check the tyres carrying capacity.
Caravan / Trailer and Tyre details
Where to find your trailer and tyre details
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Caravan or Trailer
Select the Caravan or Trailer being checked so the correct pressure method is used.
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Gross trailer weight
Use the maximum gross weight from the trailer identification plate or manufacturer paperwork.
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Road tyres / axle layout
Count only the road tyres carrying the trailer. Do not include the spare or jockey wheel.
Read the markings on the tyre sidewall
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Width
First number, in millimetres.
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Profile
Number after the slash.
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Rim
Number after R, in inches.
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Load rating
Final load-index marking.
