Vauxhall Astra — MPG & Fuel Costs 2025
Vauxhall's family hatchback, now with hybrid options. Good value, practical, and the plug-in hybrid version is excellent for commuters.
The Vauxhall Astra is a mainstay of the British family car sector, offering a sharp look, modern interior, and high-value equipment lists. The latest generation represents a step up in design and refinement.
Under the hood, drivers can choose between a 1.2-litre three-cylinder petrol, a 1.5-litre diesel, and a 1.6-litre plug-in hybrid (PHEV). The petrol engines offer a good balance of zip and frugality, while the diesel is ideal for long-distance drivers.
Achieving 44 MPG in the petrol variant is highly realistic for daily driving. For fleet drivers or homeowners who can charge overnight, the PHEV represents a massive opportunity to cut daily fuel costs to almost zero.
TL;DR
44 MPG
Real-world petrol
54 MPG
Real-world diesel
52L
Tank capacity
£71.14
Full tank (petrol)
14.1p
Per mile (petrol)
Real-World Fuel Economy: The Vauxhall Astra achieves an estimated 44 MPG (petrol) and 54 MPG (diesel) in real-world UK driving conditions, accounting for a 12% WLTP real-world penalty.
Forecourt Fuel Cost: Refueling the 52-litre tank completely costs approximately £71.14 (petrol) or £73.89 (diesel) at average UK fuel price rates.
Fuel economy at a glance
44
Real-world MPG
Petrol
52.3
Official WLTP
Petrol
54
Real-world MPG
Diesel
64.2
Official WLTP
Diesel
Annual fuel costs by mileage
| Annual mileage | Petrol | Diesel |
|---|---|---|
| 5,000 miles/yr | £707 | £598 |
| 7,400 miles/yr(UK average) | £1046 | £885 |
| 10,000 miles/yr | £1413 | £1196 |
| 15,000 miles/yr | £2120 | £1794 |
| 20,000 miles/yr | £2827 | £2393 |
| Full tank (52L) | £71.14 | £73.89 |
| Cost per mile | 14.1p | 12.0p |
Based on UK average fuel prices: petrol 136.8p/L · diesel 142.1p/L. Prices updated regularly.
How does the Astra compare?
Tips to get better MPG from your Astra
Utilize Eco mode on the automatic models to keep the gearbox in higher gears for longer, lowering engine RPM.
If driving the plug-in hybrid (PHEV), pre-condition the cabin while plugged into the mains to save battery charge.
Keep the vehicle clean; dirt and grime on the bodywork can slightly increase drag at motorway cruising speeds.
Is the cheaper petrol station worth it?
In a Vauxhall Astra achieving ~44 MPG real-world, if you fill 42 litres and the alternative station is 10p/litre cheaper:
£4.20
Gross saving on fuel
£0.42
Cost of 3-mile detour
£3.78
Net saving ✓
You could drive up to 30 miles round-trip before the saving disappears entirely.
Calculate for your exact situationPopular variants
Frequently asked questions
What is the real-world MPG of the Vauxhall Astra?
The Vauxhall Astra achieves approximately 44 MPG in real-world petrol driving — around 12% lower than the official WLTP figure of 52.3 MPG due to real driving conditions. Diesel variants achieve around 54 MPG real-world.
How much does it cost to fill a Vauxhall Astra?
The Vauxhall Astra has a fuel tank of 52 litres. At the UK average of 136.8p/litre for petrol, a full tank costs approximately £71.14. Diesel costs approximately £73.89 for a full tank.
What is the annual fuel cost for a Vauxhall Astra?
At the UK average annual mileage of 7,400 miles and current petrol price of 136.8p/litre, a Vauxhall Astra costs approximately £1046 per year in fuel. At 10,000 miles/year the cost rises to £1413. Actual costs vary with your driving style and mileage.
Is it worth driving to a cheaper petrol station in a Vauxhall Astra?
In a Vauxhall Astra doing ~44 MPG real-world, driving 3 miles round-trip to save 10p/litre on a 42-litre fill nets approximately £3.78 after the extra fuel cost. You could drive up to 30 miles before the saving is eaten up. Use the WorthThePump calculator for your exact situation.
How much does the Vauxhall Astra cost per mile in fuel?
The Vauxhall Astra costs approximately 14.1p per mile in petrol at current UK prices. Over a typical commute of 30 miles per day, that is approximately £4.23 per day in fuel.
What is the WLTP MPG figure for the Vauxhall Astra?
The official WLTP fuel economy figure for the Vauxhall Astra is 52.3 MPG. However, real-world MPG is typically 10–15% lower than WLTP due to cold starts, air conditioning, motorway speeds, and varying loads. WorthThePump uses a 12% real-world penalty to give a more accurate estimate.
Related guides
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