Fuel price guides and reports

Shell V-Power vs BP Ultimate vs Esso Supreme+: premium fuels compared

Each brand's premium petrol and diesel side by side: the price over its regular grade, what the brand claims, and the octane it states.

Figures to 2 November

How much is a gallon of petrol in the UK?

What a gallon of petrol or diesel costs at our UK average prices, how the sum works, and how it changes by region, by retailer and over time.

Figures to 2 November

HMRC mileage rates and advisory fuel rates

HMRC's 55p mileage rate for your own car, its fuel rates for company cars, and whether they cover what fuel costs at the pump.

Figures to 2 November

Fuel cost calculator

Work out what a journey costs in petrol or diesel, at the average price across the UK, your region or your postcode.

Figures to 2 November

Is supermarket fuel worse than branded fuel?

What the law says every litre must meet, what the brands say they add, and how much less the supermarkets charge.

Figures to 2 November

Why is diesel more expensive than petrol?

Why diesel costs more than petrol in the UK, how the gap has moved in 2026, and which costs less to run.

Figures to 2 November

Fuel duty: how much tax is in a litre of petrol and diesel?

How much of the petrol and diesel price is tax, when duty goes up, and what each rise costs you.

Figures to 2 November

Is premium diesel worth it?

What premium diesel is, what the brands claim for it, and the economy gain it would need to pay its way.

Figures to 2 November

E10 fuel vs E5 petrol: what's the difference, and is E5 worth the extra?

What E10 fuel and E5 petrol are, which cars need E5, and what the extra costs at the latest UK prices.

Figures to 2 November