1. What is Tyre Pressure Calculation?

Definition: This calculator determines the optimal tyre pressure based on vehicle load and tyre load rating.

Purpose: It helps vehicle owners and mechanics maintain proper tyre inflation for safety, fuel efficiency, and tyre longevity.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( P \) — Tyre pressure (psi)
• \( Load \) — Total vehicle weight on the tyre (kg)
• \( Tyre\ Rating \) — Tyre's load capacity per psi (kg/psi)

Explanation: The vehicle load is divided by the tyre's load rating to determine the required pressure.

3. Importance of Correct Tyre Pressure

Details: Proper tyre pressure ensures optimal vehicle handling, even tyre wear, maximum fuel efficiency, and safety.

4. Using the Calculator

Tips: Enter the vehicle load per tyre in kg and the tyre's load rating in kg/psi (found on the tyre sidewall). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Where do I find my tyre's load rating?
A: Check the tyre sidewall for the load index number and refer to manufacturer specifications for the kg/psi rating.

Q2: Should I use maximum or recommended pressure?
A: This calculates the minimum required pressure. Always follow manufacturer recommendations which may be higher.

Q3: How often should I check tyre pressure?
A: At least monthly and before long trips. Check when tyres are cold for most accurate readings.

Q4: What if my vehicle has different loads on each axle?
A: Calculate separately for front and rear tyres using the respective axle loads divided by number of tyres.

Q5: Does temperature affect tyre pressure?
A: Yes, pressure changes about 1 psi for every 10°F (5.6°C) temperature change. Adjust accordingly in extreme temperatures.