Hyundai Ioniq 5 vs BMW X3: Running Costs UK 2026
Last updated: June 2026 · Based on current UK fuel prices
At 10,000 miles/yr · 80% home charging
+£941/yr
The Hyundai Ioniq 5 saves you approximately £941 per year in fuel costs.
The Hyundai Ioniq 5 is also £4,000 cheaper to buy — no break-even required.
BMW X3 fuel cost
19.2p/mile
34 MPG · 143.9p/litre
Hyundai Ioniq 5 (home tariff)
8.0p/mile
3.5 mi/kWh · 28p/kWh
Annual fuel cost comparison
The table below uses real-world efficiency figures for both vehicles and current UK fuel prices. EV costs assume 80% home charging (28p/kWh) and 20% public rapid charging (60p/kWh).
| Miles/yr | BMW X3 | Hyundai Ioniq 5 | EV saves |
|---|---|---|---|
| 8,000 | £1,539 | £786 | +£753 |
| 10,000(avg) | £1,924 | £983 | +£941 |
| 12,000 | £2,309 | £1,179 | +£1,129 |
| 15,000 | £2,886 | £1,474 | +£1,412 |
| 20,000 | £3,848 | £1,966 | +£1,882 |
Petrol: 143.9p/litre · Home electricity: 28p/kWh · Public rapid: 60p/kWh
Hyundai Ioniq 5 cost by charging scenario
Charging behaviour has more impact on EV running costs than almost any other variable. Here's how the Hyundai Ioniq 5 compares at 10,000 miles per year across four scenarios:
Overnight EV tariff
£200/yr · 2.0p/mile
Standard home (80% home)
£983/yr · 9.8p/mile
Mixed (50% home)
£1,257/yr · 12.6p/mile
Public charging only
£1,714/yr · 17.1p/mile
Saving vs BMW X3 at 10,000 mi/yr and 143.9p/litre.
Key specs
Hyundai Ioniq 5
73kWh RWD
BMW X3
xDrive20i
Get a personalised result for your actual mileage
The figures above use national average fuel prices. Enter your postcode to get live local prices, or adjust the MPG and efficiency for your specific trim level.
Open calculator pre-filled for this comparisonFrequently asked questions
How much does a Hyundai Ioniq 5 cost to run per mile in the UK?
At a standard UK home electricity rate of 28p/kWh and a real-world efficiency of 3.5 miles/kWh, the Hyundai Ioniq 5 costs approximately 8.0p per mile when charging at home. On a dedicated overnight EV tariff (around 7p/kWh) this falls to just 2.0p per mile. Relying entirely on public rapid charging at 60p/kWh raises the cost to 17.1p per mile.
Is the Hyundai Ioniq 5 cheaper to run than the BMW X3?
Yes, for most UK drivers who can charge at home. The BMW X3 costs approximately 19.2p per mile in petrol at current UK prices. At home on a standard tariff, the Hyundai Ioniq 5 costs 8.0p per mile — a saving of 11.2p per mile. At 10,000 miles per year with 80% home charging, the Hyundai Ioniq 5 saves around £941 per year in fuel costs.
Is the Hyundai Ioniq 5 more or less expensive to buy than the BMW X3?
The Hyundai Ioniq 5 is actually cheaper to buy upfront than the BMW X3 by approximately £4,000, meaning you save on both purchase price and running costs — there is no break-even calculation required.
What if I can't charge the Hyundai Ioniq 5 at home?
Without home charging, the economics change significantly. Relying on public rapid charging at 60p/kWh puts the Hyundai Ioniq 5 at 17.1p per mile — still comparable to the BMW X3 at 19.2p per mile. EV running cost savings are almost entirely dependent on home charging access. Drivers without off-street parking should factor this in carefully.