Renault Kadjar — MPG & Fuel Costs 2025
Renault's mid-size family crossover, sharing underpinnings with the Nissan Qashqai and offering frugal BlueHDi/dCi diesel cruises.
TL;DR
38 MPG
Real-world petrol
49 MPG
Real-world diesel
55L
Tank capacity
£75.24
Full tank (petrol)
16.4p
Per mile (petrol)
Real-World Fuel Economy: The Renault Kadjar achieves an estimated 38 MPG (petrol) and 49 MPG (diesel) in real-world UK driving conditions, accounting for a 12% WLTP real-world penalty.
Forecourt Fuel Cost: Refueling the 55-litre tank completely costs approximately £75.24 (petrol) or £78.16 (diesel) at average UK fuel price rates.
Fuel economy at a glance
38
Real-world MPG
Petrol
45.6
Official WLTP
Petrol
49
Real-world MPG
Diesel
57.7
Official WLTP
Diesel
Annual fuel costs by mileage
| Annual mileage | Petrol | Diesel |
|---|---|---|
| 5,000 miles/yr | £818 | £659 |
| 7,400 miles/yr(UK average) | £1211 | £976 |
| 10,000 miles/yr | £1637 | £1318 |
| 15,000 miles/yr | £2455 | £1978 |
| 20,000 miles/yr | £3273 | £2637 |
| Full tank (55L) | £75.24 | £78.16 |
| Cost per mile | 16.4p | 13.2p |
Based on UK average fuel prices: petrol 136.8p/L · diesel 142.1p/L. Prices updated regularly.
How does the Kadjar compare?
Tips to get better MPG from your Kadjar
Drive smoothly; the Kadjar is a spacious SUV and sensitive to rapid acceleration.
Utilize cruise control on highway stretches to keep engine RPMs steady.
Check tyre pressures regularly to prevent rolling resistance from lowering your MPG.
Is the cheaper petrol station worth it?
In a Renault Kadjar achieving ~38 MPG real-world, if you fill 44 litres and the alternative station is 10p/litre cheaper:
£4.40
Gross saving on fuel
£0.49
Cost of 3-mile detour
£3.91
Net saving ✓
You could drive up to 27 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 Renault Kadjar?
The Renault Kadjar 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 49 MPG real-world.
How much does it cost to fill a Renault Kadjar?
The Renault Kadjar has a fuel tank of 55 litres. At the UK average of 136.8p/litre for petrol, a full tank costs approximately £75.24. Diesel costs approximately £78.16 for a full tank.
What is the annual fuel cost for a Renault Kadjar?
At the UK average annual mileage of 7,400 miles and current petrol price of 136.8p/litre, a Renault Kadjar 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 Renault Kadjar?
In a Renault Kadjar doing ~38 MPG real-world, driving 3 miles round-trip to save 10p/litre on a 44-litre fill nets approximately £3.91 after the extra fuel cost. You could drive up to 27 miles before the saving is eaten up. Use the WorthThePump calculator for your exact situation.
How much does the Renault Kadjar cost per mile in fuel?
The Renault Kadjar 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 Renault Kadjar?
The official WLTP fuel economy figure for the Renault Kadjar 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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