Suzuki Swift — MPG & Fuel Costs 2025
Suzuki's fun, lightweight supermini. Equipped with standard Boosterjet or Dualjet mild-hybrid engines returning great economy.
TL;DR
51 MPG
Real-world petrol
37L
Tank capacity
£50.62
Full tank (petrol)
12.2p
Per mile (petrol)
Real-World Fuel Economy: The Suzuki Swift achieves an estimated 51 MPG in real-world UK driving conditions, accounting for a 12% WLTP real-world penalty.
Forecourt Fuel Cost: Refueling the 37-litre tank completely costs approximately £50.62 at average UK fuel price rates.
Fuel economy at a glance
51
Real-world MPG
Petrol
58.9
Official WLTP
Petrol
Annual fuel costs by mileage
| Annual mileage | Petrol |
|---|---|
| 5,000 miles/yr | £610 |
| 7,400 miles/yr(UK average) | £902 |
| 10,000 miles/yr | £1219 |
| 15,000 miles/yr | £1829 |
| 20,000 miles/yr | £2439 |
| Full tank (37L) | £50.62 |
| Cost per mile | 12.2p |
Based on UK average fuel prices: petrol 136.8p/L · diesel 142.1p/L. Prices updated regularly.
How does the Swift compare?
Tips to get better MPG from your Swift
The Swift is incredibly light; keeping driving style smooth yields massive fuel efficiency gains.
Use Eco settings to maximize the 12V mild-hybrid electrical assistance.
Check tyre pressures regularly; rolling efficiency is key to its high MPG.
Is the cheaper petrol station worth it?
In a Suzuki Swift achieving ~51 MPG real-world, if you fill 30 litres and the alternative station is 10p/litre cheaper:
£3.00
Gross saving on fuel
£0.37
Cost of 3-mile detour
£2.63
Net saving ✓
You could drive up to 25 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 Suzuki Swift?
The Suzuki Swift achieves approximately 51 MPG in real-world petrol driving — around 12% lower than the official WLTP figure of 58.9 MPG due to real driving conditions. Diesel variants achieve around N/A MPG real-world.
How much does it cost to fill a Suzuki Swift?
The Suzuki Swift has a fuel tank of 37 litres. At the UK average of 136.8p/litre for petrol, a full tank costs approximately £50.62. Diesel costs approximately £52.58 for a full tank.
What is the annual fuel cost for a Suzuki Swift?
At the UK average annual mileage of 7,400 miles and current petrol price of 136.8p/litre, a Suzuki Swift costs approximately £902 per year in fuel. At 10,000 miles/year the cost rises to £1219. Actual costs vary with your driving style and mileage.
Is it worth driving to a cheaper petrol station in a Suzuki Swift?
In a Suzuki Swift doing ~51 MPG real-world, driving 3 miles round-trip to save 10p/litre on a 30-litre fill nets approximately £2.63 after the extra fuel cost. You could drive up to 25 miles before the saving is eaten up. Use the WorthThePump calculator for your exact situation.
How much does the Suzuki Swift cost per mile in fuel?
The Suzuki Swift costs approximately 12.2p per mile in petrol at current UK prices. Over a typical commute of 30 miles per day, that is approximately £3.66 per day in fuel.
What is the WLTP MPG figure for the Suzuki Swift?
The official WLTP fuel economy figure for the Suzuki Swift is 58.9 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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