Tyre Pressure Formula:
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Definition: This calculator estimates the optimal tyre pressure for your caravan based on weight, tyre size, and number of tyres.
Purpose: It helps caravan owners maintain proper tyre pressure for safety, fuel efficiency, and tyre longevity.
The calculator uses the formula:
Where:
Explanation: The caravan weight is adjusted by load factor and distributed across all tyres to determine optimal pressure.
Details: Correct tyre pressure ensures safe handling, prevents blowouts, improves fuel efficiency, and extends tyre life.
Tips: Enter the caravan weight in kg, tyre size (e.g., 185/65 R15), number of tyres, and load factor (default 0.9).
Q1: Why is tyre pressure important for caravans?
A: Caravans are heavy and run at highway speeds - proper pressure prevents overheating and failure.
Q2: Should I use the maximum pressure on the tyre sidewall?
A: No, that's the maximum safe pressure - use the calculated optimal pressure instead.
Q3: How often should I check caravan tyre pressure?
A: Before every trip and at least monthly when in storage.
Q4: Does temperature affect tyre pressure?
A: Yes, pressure changes about 1 psi per 10°F temperature change - check when tyres are cold.
Q5: Should all caravan tyres have equal pressure?
A: Yes, unless manufacturer specifies otherwise for your particular model.