EV Home Charging Cost Calculator
Calculate your exact EV home charging cost, annual electricity bill for your car, and how much you save compared to petrol or diesel.
EV Charging Guide
Home Charging Costs
At 25p per kWh (typical UK 2024 rate), charging a 77kWh battery costs approximately £19.25 for a full charge. At a real-world efficiency of 3.5 miles per kWh, that is about 7p per mile — compared to 15–20p per mile for a typical petrol car. An EV driver covering 10,000 miles per year saves approximately £800–1,500 in fuel costs compared to a petrol equivalent.
Cheaper Off-Peak Tariffs
EV-specific tariffs (Octopus Go, OVO Drive + Electric, British Gas Electric Driver) offer significantly cheaper overnight rates — typically 7–10p per kWh between midnight and 5am. This reduces home charging costs by 50–70%. A 77kWh battery charged overnight at 7p per kWh costs just £5.39 — roughly 2p per mile. Most EV charging points and vehicles support scheduled charging.
Public Charging Costs
Rapid chargers (50kW+) cost 60–80p per kWh in 2024 — roughly equivalent to petrol. Ultra-rapid chargers (150–350kW) cost 65–90p per kWh. Pod Point and IONITY destination chargers vary from free to 30p per kWh. The economics of EVs depend heavily on home charging — if you mainly use public rapid chargers, the fuel cost advantage largely disappears.
Charger Types and Speeds
3-pin plug: 2.3kW, adds roughly 8 miles per hour — fine for occasional top-up, slow for regular use. 7kW home wallbox: adds 25–30 miles per hour, charges most EVs overnight — the recommended minimum for home installation. 22kW three-phase: available in some properties, adds around 75 miles per hour. Public rapid (50kW DC): 80% charge in approximately 1 hour. Ultra-rapid (150–350kW DC): 80% charge in 20–30 minutes.
Recommended for this calculator