Audi A5 — MPG & Fuel Costs 2025
Audi's elegant coupe and Sportback. Featuring refined styling, high interior quality, and excellent high-speed cruising efficiency.
TL;DR
38 MPG
Real-world petrol
48 MPG
Real-world diesel
54L
Tank capacity
£73.87
Full tank (petrol)
16.4p
Per mile (petrol)
Real-World Fuel Economy: The Audi A5 achieves an estimated 38 MPG (petrol) and 48 MPG (diesel) in real-world UK driving conditions, accounting for a 12% WLTP real-world penalty.
Forecourt Fuel Cost: Refueling the 54-litre tank completely costs approximately £73.87 (petrol) or £76.73 (diesel) at average UK fuel price rates.
Fuel economy at a glance
38
Real-world MPG
Petrol
44.8
Official WLTP
Petrol
48
Real-world MPG
Diesel
56.5
Official WLTP
Diesel
Annual fuel costs by mileage
| Annual mileage | Petrol | Diesel |
|---|---|---|
| 5,000 miles/yr | £818 | £673 |
| 7,400 miles/yr(UK average) | £1211 | £996 |
| 10,000 miles/yr | £1637 | £1346 |
| 15,000 miles/yr | £2455 | £2019 |
| 20,000 miles/yr | £3273 | £2692 |
| Full tank (54L) | £73.87 | £76.73 |
| Cost per mile | 16.4p | 13.5p |
Based on UK average fuel prices: petrol 136.8p/L · diesel 142.1p/L. Prices updated regularly.
How does the A5 compare?
Tips to get better MPG from your A5
Use the cruise control extensively on long motorway journeys to keep the engine load consistent.
The A5 has low aerodynamic drag; maintaining a steady highway cruise yields excellent MPG.
Check tyre pressures regularly; wide low-profile tyres drag down efficiency if low.
Is the cheaper petrol station worth it?
In a Audi A5 achieving ~38 MPG real-world, if you fill 43 litres and the alternative station is 10p/litre cheaper:
£4.30
Gross saving on fuel
£0.49
Cost of 3-mile detour
£3.81
Net saving ✓
You could drive up to 26 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 Audi A5?
The Audi A5 achieves approximately 38 MPG in real-world petrol driving — around 12% lower than the official WLTP figure of 44.8 MPG due to real driving conditions. Diesel variants achieve around 48 MPG real-world.
How much does it cost to fill a Audi A5?
The Audi A5 has a fuel tank of 54 litres. At the UK average of 136.8p/litre for petrol, a full tank costs approximately £73.87. Diesel costs approximately £76.73 for a full tank.
What is the annual fuel cost for a Audi A5?
At the UK average annual mileage of 7,400 miles and current petrol price of 136.8p/litre, a Audi A5 costs approximately £1211 per year in fuel. At 10,000 miles/year the cost rises to £1637. Actual costs vary with your driving style and mileage.
Is it worth driving to a cheaper petrol station in a Audi A5?
In a Audi A5 doing ~38 MPG real-world, driving 3 miles round-trip to save 10p/litre on a 43-litre fill nets approximately £3.81 after the extra fuel cost. You could drive up to 26 miles before the saving is eaten up. Use the WorthThePump calculator for your exact situation.
How much does the Audi A5 cost per mile in fuel?
The Audi A5 costs approximately 16.4p per mile in petrol at current UK prices. Over a typical commute of 30 miles per day, that is approximately £4.92 per day in fuel.
What is the WLTP MPG figure for the Audi A5?
The official WLTP fuel economy figure for the Audi A5 is 44.8 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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