1. What is a Tyre Pressure Calculator for Caravan?

Definition: This calculator estimates the optimal tyre pressure based on caravan load, number of tyres, tyre load rating, and a safety factor.

Purpose: It helps caravan owners maintain proper tyre pressure for safety, fuel efficiency, and tyre longevity.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( P \) — Tyre pressure (psi)
• \( L \) — Total caravan load (kg)
• \( T \) — Number of tyres
• \( R \) — Tyre load rating (kg/tyre)
• \( F \) — Safety factor (typically 1.1)

Explanation: The load per tyre is calculated first, then divided by the tyre's load rating, and finally adjusted with a safety factor.

3. Importance of Proper Tyre Pressure

Details: Correct tyre pressure ensures even load distribution, prevents blowouts, improves handling, and maximizes tyre life.

4. Using the Calculator

Tips: Enter the total caravan load in kg, number of tyres (default 4), tyre load rating (default 90 kg/tyre), and safety factor (default 1.1). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Why do we need a safety factor?
A: The safety factor accounts for uneven load distribution, road conditions, and provides a margin of safety.

Q2: Where can I find my tyre's load rating?
A: Check the sidewall of your tyre or the manufacturer's specifications (usually marked as "Load Index").

Q3: When would I change the safety factor?
A: Increase to 1.2 for rough terrain or heavy loads, decrease to 1.0 only if manufacturer recommends.

Q4: How do I find my caravan's total load?
A: Weigh your fully loaded caravan at a weighbridge or use manufacturer's specifications plus your cargo.

Q5: Does this replace manufacturer recommendations?
A: No, always consult your tyre manufacturer's pressure recommendations as they may vary based on tyre construction.