1. What is a Tyre Pressure Calculator?

Definition: This calculator estimates the optimal tyre pressure based on vehicle weight, tyre width, and a pressure factor.

Purpose: It helps vehicle owners and mechanics determine the proper tyre pressure for optimal performance and safety.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( P \) — Tyre pressure (bar)
• \( W \) — Vehicle weight (kg)
• \( A \) — Tyre width (mm)
• \( F \) — Pressure factor (typically 0.6 kg/mm²)

Explanation: The vehicle weight is divided by tyre width to get load per unit width, then multiplied by a factor to determine pressure.

3. Importance of Proper Tyre Pressure

Details: Correct tyre pressure ensures better fuel efficiency, longer tyre life, improved handling, and increased safety.

4. Using the Calculator

Tips: Enter the vehicle weight in kg, tyre width in mm, and pressure factor (default 0.6 kg/mm²). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Why is tyre pressure important?
A: Proper pressure affects handling, braking, fuel economy, and tyre wear. Under/over inflation can be dangerous.

Q2: What's a typical pressure factor?
A: Most passenger vehicles use 0.6 kg/mm², but this varies by vehicle type and tyre construction.

Q3: Should I use this for all my tyres?
A: Front and rear tyres may need different pressures. Consult your vehicle manual for specific recommendations.

Q4: How do I find my vehicle's weight?
A: Check the owner's manual or vehicle registration documents for Gross Vehicle Weight (GVW).

Q5: Does this account for load changes?
A: No, adjust pressure when carrying heavy loads or towing. Increase pressure by 0.2-0.3 bar for full loads.