Fiat 500 — MPG & Fuel Costs 2025
The retro icon in mild-hybrid form. Fun styling, easy to park, and exceptionally fuel-efficient in urban driving.
The Fiat 500 is a retro supermini that remains highly popular for its chic styling, compact size, and cheap running costs. The latest mainstream versions feature a mild-hybrid petrol engine to cut fuel bills.
The mild-hybrid drivetrain pairs a 1.0-litre three-cylinder petrol engine with a small electric motor. The system recovers energy under braking, assists the engine during acceleration, and shuts down the engine when coasting at low speeds.
Achieving a real-world average of 52 MPG is easy in the Fiat 500, with urban commutes often returning over 55 MPG. Its low purchase price, cheap insurance, and frugal engine make it a favourite for city dwellers.
TL;DR
52 MPG
Real-world petrol
35L
Tank capacity
£47.88
Full tank (petrol)
12.0p
Per mile (petrol)
Real-World Fuel Economy: The Fiat 500 achieves an estimated 52 MPG in real-world UK driving conditions, accounting for a 12% WLTP real-world penalty.
Forecourt Fuel Cost: Refueling the 35-litre tank completely costs approximately £47.88 at average UK fuel price rates.
Fuel economy at a glance
52
Real-world MPG
Petrol
61.4
Official WLTP
Petrol
Annual fuel costs by mileage
| Annual mileage | Petrol |
|---|---|
| 5,000 miles/yr | £598 |
| 7,400 miles/yr(UK average) | £885 |
| 10,000 miles/yr | £1196 |
| 15,000 miles/yr | £1794 |
| 20,000 miles/yr | £2392 |
| Full tank (35L) | £47.88 |
| Cost per mile | 12.0p |
Based on UK average fuel prices: petrol 136.8p/L · diesel 142.1p/L. Prices updated regularly.
How does the 500 compare?
Tips to get better MPG from your 500
Use the mild-hybrid system: lift off early and coast towards junctions to capture energy and turn off the engine.
Keep engine RPMs low by upshifting early; the engine is designed for efficiency and does not require high revs.
Opt for the standard 15-inch wheels rather than 16-inch versions to maximize fuel economy.
Is the cheaper petrol station worth it?
In a Fiat 500 achieving ~52 MPG real-world, if you fill 28 litres and the alternative station is 10p/litre cheaper:
£2.80
Gross saving on fuel
£0.36
Cost of 3-mile detour
£2.44
Net saving ✓
You could drive up to 23 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 Fiat 500?
The Fiat 500 achieves approximately 52 MPG in real-world petrol driving — around 12% lower than the official WLTP figure of 61.4 MPG due to real driving conditions. Diesel variants achieve around N/A MPG real-world.
How much does it cost to fill a Fiat 500?
The Fiat 500 has a fuel tank of 35 litres. At the UK average of 136.8p/litre for petrol, a full tank costs approximately £47.88. Diesel costs approximately £49.73 for a full tank.
What is the annual fuel cost for a Fiat 500?
At the UK average annual mileage of 7,400 miles and current petrol price of 136.8p/litre, a Fiat 500 costs approximately £885 per year in fuel. At 10,000 miles/year the cost rises to £1196. Actual costs vary with your driving style and mileage.
Is it worth driving to a cheaper petrol station in a Fiat 500?
In a Fiat 500 doing ~52 MPG real-world, driving 3 miles round-trip to save 10p/litre on a 28-litre fill nets approximately £2.44 after the extra fuel cost. You could drive up to 23 miles before the saving is eaten up. Use the WorthThePump calculator for your exact situation.
How much does the Fiat 500 cost per mile in fuel?
The Fiat 500 costs approximately 12.0p per mile in petrol at current UK prices. Over a typical commute of 30 miles per day, that is approximately £3.60 per day in fuel.
What is the WLTP MPG figure for the Fiat 500?
The official WLTP fuel economy figure for the Fiat 500 is 61.4 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
Find the cheapest fuel for your 500
Enter your registration and we'll calculate whether the cheaper station nearby is worth the detour — factoring in your 500's real-world MPG.
Try WorthThePump — it's free