Fiat 500L — MPG & Fuel Costs 2025
Fiat's spacious compact MPV, blending retro 500 styling with high seating positions and practical passenger space.
TL;DR
38 MPG
Real-world petrol
52 MPG
Real-world diesel
50L
Tank capacity
£68.40
Full tank (petrol)
16.4p
Per mile (petrol)
Real-World Fuel Economy: The Fiat 500L achieves an estimated 38 MPG (petrol) and 52 MPG (diesel) in real-world UK driving conditions, accounting for a 12% WLTP real-world penalty.
Forecourt Fuel Cost: Refueling the 50-litre tank completely costs approximately £68.40 (petrol) or £71.05 (diesel) at average UK fuel price rates.
Fuel economy at a glance
38
Real-world MPG
Petrol
45.6
Official WLTP
Petrol
52
Real-world MPG
Diesel
61.4
Official WLTP
Diesel
Annual fuel costs by mileage
| Annual mileage | Petrol | Diesel |
|---|---|---|
| 5,000 miles/yr | £818 | £621 |
| 7,400 miles/yr(UK average) | £1211 | £919 |
| 10,000 miles/yr | £1637 | £1242 |
| 15,000 miles/yr | £2455 | £1863 |
| 20,000 miles/yr | £3273 | £2485 |
| Full tank (50L) | £68.40 | £71.05 |
| Cost per mile | 16.4p | 12.4p |
Based on UK average fuel prices: petrol 136.8p/L · diesel 142.1p/L. Prices updated regularly.
How does the 500L compare?
Tips to get better MPG from your 500L
The 500L has a taller front profile; cruising at 65 mph instead of 75 mph on the motorway saves fuel.
For TwinAir variants, keep throttle applications progressive to avoid high turbo load.
Clean out unnecessary cabin items to lighten the weight of this family vehicle.
Is the cheaper petrol station worth it?
In a Fiat 500L achieving ~38 MPG real-world, if you fill 40 litres and the alternative station is 10p/litre cheaper:
£4.00
Gross saving on fuel
£0.49
Cost of 3-mile detour
£3.51
Net saving ✓
You could drive up to 24 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 500L?
The Fiat 500L achieves approximately 38 MPG in real-world petrol driving — around 12% lower than the official WLTP figure of 45.6 MPG due to real driving conditions. Diesel variants achieve around 52 MPG real-world.
How much does it cost to fill a Fiat 500L?
The Fiat 500L has a fuel tank of 50 litres. At the UK average of 136.8p/litre for petrol, a full tank costs approximately £68.40. Diesel costs approximately £71.05 for a full tank.
What is the annual fuel cost for a Fiat 500L?
At the UK average annual mileage of 7,400 miles and current petrol price of 136.8p/litre, a Fiat 500L 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 Fiat 500L?
In a Fiat 500L doing ~38 MPG real-world, driving 3 miles round-trip to save 10p/litre on a 40-litre fill nets approximately £3.51 after the extra fuel cost. You could drive up to 24 miles before the saving is eaten up. Use the WorthThePump calculator for your exact situation.
How much does the Fiat 500L cost per mile in fuel?
The Fiat 500L 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 Fiat 500L?
The official WLTP fuel economy figure for the Fiat 500L is 45.6 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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