1. What is a Van Tyre Pressure Calculator?

Definition: This calculator estimates the optimal tyre pressure for vans based on vehicle load, tyre load rating, and maximum tyre pressure.

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

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( P \) — Recommended tyre pressure (psi)
• \( Load \) — Total vehicle weight (kg)
• \( Rating \) — Tyre load rating per tyre (kg)
• \( Max\_P \) — Maximum tyre pressure (psi)

Explanation: The vehicle load is divided by the total capacity of all four tyres, then multiplied by the maximum pressure to get the recommended operating pressure.

3. Importance of Proper Tyre Pressure

Details: Correct tyre pressure ensures even wear, better fuel economy, proper handling, and prevents blowouts. Under-inflation can cause overheating while over-inflation reduces traction.

4. Using the Calculator

Tips: Enter the total vehicle load in kg, the load rating per tyre (found on tyre sidewall), and the maximum pressure (also on sidewall). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Why divide by 4 in the formula?
A: The division by 4 accounts for the weight being distributed across all four tyres of the van.

Q2: Where can I find my tyre's load rating?
A: The load rating is marked on the tyre sidewall, usually following the size designation (e.g., 91 in "205/55R16 91V").

Q3: Should I use the exact calculated pressure?
A: The calculation provides a baseline. Always consult your vehicle manual and adjust for specific load conditions or manufacturer recommendations.

Q4: How often should I check tyre pressure?
A: Check at least monthly and before long trips. Tyres naturally lose about 1 psi per month.

Q5: Does this work for different tyre sizes?
A: Yes, as long as you use the correct load rating for each specific tyre size and type.