EV Charging Guide
How Much Does It Cost to Charge an Electric Car in the UK?
A full breakdown of home, off-peak and public charging costs in 2026 — including the charging losses most calculators leave out.
The honest answer is "it depends where you charge" — the difference between the cheapest and most expensive way to top up an EV in the UK is roughly nine times per kWh. Charging at home overnight and charging at a motorway rapid charger are almost different products entirely. This guide breaks down the real numbers for 2026, including a cost most calculators quietly ignore: charging losses.
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UK electricity rates for EV charging, 2026
| Where you charge | Typical rate | Notes |
|---|---|---|
| Home — standard tariff | ~24.67p/kWh | Ofgem price cap level, Apr–Jun 2026 |
| Home — off-peak/EV tariff | ~8.8p/kWh | Overnight window, typically midnight–7am |
| Public slow/fast charger | ~54p/kWh | Zapmap weighted UK average |
| Public rapid/ultra-rapid | ~79p/kWh | Zapmap weighted UK average |
These are national averages — your own tariff, network operator and location will shift the number, sometimes considerably. Motorway service station rapid chargers tend to sit at the top of the range; supermarket and car park chargers are often cheaper.
The step most calculators skip: charging losses
Not every kWh you pay for reaches your battery. Some energy is lost as heat in the cable, the onboard charger and the battery management system — typically 8–15% on a home AC charge, and somewhat less on rapid DC charging. A calculator that ignores this understates your real cost, because you're billed for what leaves the wall, not what lands in the battery.
See EV charging losses explained for why this happens and how big a difference it makes.
Worked example: a 60kWh EV, 20–80% top-up
Step by step
- Energy into battery: 60kWh × 60% (20–80% window) = 36kWh
- Energy from the wall at 10% loss: 36 ÷ 0.9 = 40kWh
- Cost at home standard rate (24.67p): 40 × 0.2467 = £9.87
- Cost at home off-peak rate (8.8p): 40 × 0.088 = £3.52
- Cost at public rapid rate (79p): 40 × 0.79 = £31.60
That's roughly a £28 swing on exactly the same charge, purely down to where you plug in. Over a year of regular top-ups, that gap compounds into hundreds of pounds — see home vs public charging for the annual comparison.
How this compares to petrol
Even at the most expensive public rapid rate, charging an EV is usually still cheaper per mile than petrol, though the gap narrows a lot compared with cheap home charging. The cost calculator runs this comparison automatically using your own mileage, efficiency and local petrol price.
Frequently asked questions
How much does it cost to fully charge an electric car in the UK?
For a typical 60kWh battery at the Ofgem price cap rate (~24.67p/kWh), a full charge including losses costs roughly £16–£18 at home. On an overnight tariff at ~8.8p/kWh, it's closer to £6.
Is it cheaper to charge an EV at home or in public?
Home charging is almost always cheaper. Public slow/fast chargers average around 54p/kWh and rapid/ultra-rapid chargers around 79p/kWh — both well above typical home rates.
Why do EV charging cost calculators give different answers?
Many ignore charging losses — the 8–15% of energy lost as heat that you still pay for. A calculator that accounts for losses will show a slightly higher, more realistic cost.