Hyundai i20 — MPG & Fuel Costs 2025
Hyundai's small hatchback. Stylish, well-equipped for the price, and good all-round. The 1.0 T-GDI mild hybrid is the pick of the range.
The Hyundai i20 is a practical supermini that brings modern styling, generous standard equipment, and excellent interior space to the compact class. It features a sharp, angular design and a high-tech cabin.
Power comes from a 1.0-litre turbocharged three-cylinder engine featuring 48V mild-hybrid technology. This system captures deceleration energy and uses it to assist the engine under acceleration, reducing fuel bills.
Daily drivers can expect a highly respectable 44 MPG average in real-world driving. The i20's lightweight construction and efficient engine make it highly economical for daily commuting and city runs.
TL;DR
44 MPG
Real-world petrol
40L
Tank capacity
£54.72
Full tank (petrol)
14.1p
Per mile (petrol)
Real-World Fuel Economy: The Hyundai i20 achieves an estimated 44 MPG in real-world UK driving conditions, accounting for a 12% WLTP real-world penalty.
Forecourt Fuel Cost: Refueling the 40-litre tank completely costs approximately £54.72 at average UK fuel price rates.
Fuel economy at a glance
44
Real-world MPG
Petrol
52.3
Official WLTP
Petrol
Annual fuel costs by mileage
| Annual mileage | Petrol |
|---|---|
| 5,000 miles/yr | £707 |
| 7,400 miles/yr(UK average) | £1046 |
| 10,000 miles/yr | £1413 |
| 15,000 miles/yr | £2120 |
| 20,000 miles/yr | £2827 |
| Full tank (40L) | £54.72 |
| Cost per mile | 14.1p |
Based on UK average fuel prices: petrol 136.8p/L · diesel 142.1p/L. Prices updated regularly.
How does the i20 compare?
Tips to get better MPG from your i20
The mild-hybrid system assists the engine during acceleration; keep inputs smooth to maximize this benefit.
Use the gearshift indicator to upshift early, keeping engine RPMs down and saving fuel.
Maintain a steady throttle and use the stop-start system to save fuel at traffic lights.
Is the cheaper petrol station worth it?
In a Hyundai i20 achieving ~44 MPG real-world, if you fill 32 litres and the alternative station is 10p/litre cheaper:
£3.20
Gross saving on fuel
£0.42
Cost of 3-mile detour
£2.78
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 Hyundai i20?
The Hyundai i20 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 N/A MPG real-world.
How much does it cost to fill a Hyundai i20?
The Hyundai i20 has a fuel tank of 40 litres. At the UK average of 136.8p/litre for petrol, a full tank costs approximately £54.72. Diesel costs approximately £56.84 for a full tank.
What is the annual fuel cost for a Hyundai i20?
At the UK average annual mileage of 7,400 miles and current petrol price of 136.8p/litre, a Hyundai i20 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 Hyundai i20?
In a Hyundai i20 doing ~44 MPG real-world, driving 3 miles round-trip to save 10p/litre on a 32-litre fill nets approximately £2.78 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 Hyundai i20 cost per mile in fuel?
The Hyundai i20 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 Hyundai i20?
The official WLTP fuel economy figure for the Hyundai i20 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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