1. What is a Tyre Pressure Calculator G&S?

Definition: This calculator estimates the optimal tyre pressure based on vehicle weight, load factor, and contact area.

Purpose: It helps vehicle owners and mechanics determine proper tyre inflation for safety and performance.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( P \) — Tyre pressure (kPa)
• \( W \) — Vehicle weight (kg)
• \( F \) — Load factor (typically 0.8 for standard vehicles)
• \( A \) — Contact area per tyre (sq m)

Explanation: The vehicle weight is multiplied by load factor and divided by total contact area (4 tyres × area per tyre).

3. Importance of Proper Tyre Pressure

Details: Correct tyre pressure ensures optimal fuel efficiency, tyre longevity, handling, and safety.

4. Using the Calculator

Tips: Enter vehicle weight in kg, load factor (default 0.8), and contact area per tyre (default 0.01 sq m). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What is a typical load factor?
A: Standard vehicles use 0.8, while heavy loads may use 1.0-1.2.

Q2: How do I find my vehicle's weight?
A: Check the owner's manual or vehicle registration documents.

Q3: What affects contact area?
A: Tyre width, tread pattern, and inflation pressure itself.

Q4: Should I use this for all vehicles?
A: This provides estimates - always consult manufacturer recommendations.

Q5: How often should I check pressure?
A: At least monthly and before long trips.