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Fuel Price Breakdown Calculator

Break down pump prices into duty, VAT, wholesale, and retail margin.

Pump price

UK units

Leave blank to use the national average.

Default priceGOV.UK weekly average

National average 172.8p/L (week of 2 November 2026).

Where your money goes

Enter your details to calculate

Fill in the form to see your results.

How this is calculated
  1. You select fuel type and optional pump-price override.
  2. We apply duty, VAT, wholesale, and margin assumptions.
  3. We show each component in pence per litre so the price is transparent.

Select a fuel type and we will show an indicative breakdown using the latest UK weekly average price. You can also enter your own price to see how the split changes.

For live local prices, try the fuel savings calculator or browse the locations hub.

This tool is educational and indicative only - actual supplier and retailer margins vary.

When to use this calculator

Use this when you want to understand where your pump price is going before comparing brands or regions.

Common questions

This tool uses indicative assumptions and scales wholesale/margin to match the selected pump price.

We use the latest GOV.UK weekly average for the selected fuel type.

Yes. Enter your own pence-per-litre value to see how the breakdown changes.

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