How much does it cost to charge an EV at home?

In the UK (May 2026) the average single-rate electricity tariff is ~28p/kWh. A 60 kWh battery charged 0–100% costs about £16.80, giving roughly 240 miles. That's ~7p/mile vs ~14p/mile for a petrol car at 40 mpg and £1.45/litre. EV-specific tariffs (Octopus Go, Intelligent Octopus) drop overnight rates to ~7p/kWh, cutting per-mile cost to ~2p.

How much does public rapid charging cost?

Public rapid (50 kW+) and ultra-rapid (150–350 kW) charging costs 65–89p/kWh in the UK as of 2026. A 60 kWh charge there costs £39–£53 — sometimes more expensive per mile than petrol. Most EV owners do 80–95% of their charging at home and only use rapids on long journeys.

What is kWh per 100 miles or per kWh?

This is EV efficiency. Modern EVs use 3.0–4.5 mi/kWh (city) and 2.5–3.5 mi/kWh (motorway). Tesla Model 3 LR ~4.0 mi/kWh, Kia EV6 ~3.5, Mercedes EQS 450+ ~3.4, F-150 Lightning ~2.0. Higher mi/kWh = cheaper per mile. Cold winter weather drops efficiency by 15–25%.

How does EV cost compare to petrol?

At UK averages (28p/kWh home electricity, £1.45/L petrol, 40 mpg, 4 mi/kWh): EV ~7p/mile, petrol ~16p/mile — EV wins by ~55%. With cheap overnight tariffs (7p/kWh) the gap widens to ~75%. With public rapid charging only (80p/kWh): EV ~20p/mile vs petrol 16p/mile — petrol wins. Charging mix matters more than the EV itself.

Should I install a home wallbox?

If you have off-street parking, yes — a 7 kW home charger costs £700–£1,000 installed (after the £350 EV chargepoint grant for flats/renters in England). It pays back in 12–24 months versus public rapids and unlocks cheap overnight EV tariffs. Renting? Tesla Destination chargers and supermarket free chargers can stretch costs further while you wait.

⚡ Beregner for elbilsopladningsomkostninger

Cost per charge, per mile and annual electric running cost. Mix home / public / rapid kWh rates and compare to petrol.

Country / Valuta

Enheder

Battery Size (kWh)

Efficiency (miles per kWh)

Årlig kørselsafstand

Afstand, effektivitet og brændstofenheder følger dit valg ovenfor.

⚡ Elektricitetstarifsblanding

Hjemmesats (per kWh)

Public AC (per kWh)

Hurtig DC (per kWh)

% Home charge

% Public AC

% Rapid DC

⛽ Benzin Comparison (optional)

Benzinpris per gallon

Benzinbil økonomi (mpg)

⚠️ Estimat only. Virkelig EV-effektivitet falder 15–25% i koldt vejr, motorvejskørsel og ved høje hastigheder. Offentlige opladningstariffer varierer meget efter netværk. Benzin mpg i virkelig kørsel er typisk 10–15% under WLTP-tal. Ikke finansiel rådgivning.

Sådan koster EV-driftomkostninger

The headline cost-per-mile of an EV depends on three things: battery efficiency (miles per kWh), where you charge (home vs rapid), and what you pay per kWh. Get all three right and an EV costs ~25% of petrol per mile. Get them wrong (rapid-only on a heavy car) and EV running costs can match or exceed petrol.

Typisk elbileffektivitet (mi/kWh)

Most efficient: Tesla Model 3 LR (4,0–4,3), Hyundai Ioniq 6 (4,2), Mercedes EQS 450+ (3,4)
Mainstream: Kia EV6 (3,5), VW ID.3 (3,6), Tesla Model Y LR (3,7)
Larger / heavier: Audi e-tron (2.7), Ford Mustang Mach-E (3.0), Volvo EX90 (2.5)
Trucks / SUVs: Ford F-150 Lightning (2.0), Rivian R1T (2.2), Hummer EV (1.6)

Typical UK 2026 Elektricitet Rates

Standard variable tariff: ~28p/kWh
Octopus Intelligent / Go (overnight EV): ~7–9p/kWh off-peak
Public AC (7–22 kW): 45–65p/kWh
Public Rapid DC (50–150 kW): 65–79p/kWh
Ultra-Rapid DC (150 kW+): 75–89p/kWh
Tesla Supercharger (non-Tesla): 50–70p/kWh

Opladningsstrategi

Home charging is the killer feature of EV ownership. Aim for 80–90% home, 10% rapid if you have a driveway. Even at 28p/kWh home rate, a typical EV costs ~7p/mile vs petrol's 16p — saving £900/year at 10,000 miles. Switch to a 7p/kWh overnight tariff and the saving exceeds £1,300/year.

Hvornår hurtigopladning koster mere end benzin

An EV doing 3 mi/kWh charged exclusively on 79p/kWh rapid chargers costs 26p/mile — meaningfully worse than 16p/mile petrol. If you have no home charging access, the EV financial case weakens. Tesla Supercharger access (~50p/kWh for Tesla owners) and supermarket free chargers (Lidl, Tesco) can partially offset this.

Koldt vejr og motorvejskørsel

Virkelig EV-effektivitet falder 15–25% in winter (batteriophednig + kabineophedning + lavere lufttæthed ved temperatur). Motorvejskørsel ved 110 km/t reducerer effektiviteten yderligere 20–30% i forhold til bykørsel. Planlæg rækkviddebuffere tilsvarende.

⚠️

Vigtig bemærkning: Denne lommeregner inkluderer ikke bilafskrivning, forsikring, vejskat (VED bliver betalingspligtig på EV'er fra april 2025), dækslid (tungere end benzin), eller opladningstab (~10% af energi tabes mellem måleren og batteriet). For en fuld ejeromkostningssammenligning, modeller disse også. Par med vores Auto Lån Lommeregner to see total monthly cost.

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