Understanding Petrol Prices — Why They Change and How to Calculate Cost

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Overview

Petrol prices are affected by crude oil costs, refining, distribution, taxes, and retail margin. Understanding each component explains why prices vary so much.

The Formula

Pump price = Crude cost + Refining + Distribution + Tax + Retail margin

Standard formula used by professionals worldwide

Worked Example

Step-by-step

Tax can represent 40-60% of pump price in many countries. Crude price is only 30-40%

Key Points

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Units: Always use consistent units throughout your calculation
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Frequently Asked Questions

Why do prices change daily?

Crude oil is traded globally 24/7. Exchange rates and refinery capacity also affect prices.

How can I find cheapest local price?

Petrol comparison apps aggregate real-time prices at nearby stations.

Does fuel quality vary between brands?

All fuel meets legal minimum standards. Premium additives differ between brands, effect is minimal for most cars.

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