Cost to charge an electric car in Hong Kong (2026)
As of July 1, 2026, charging an electric car at home in Hong Kong costs about HK$18.66–HK$23.69 per 100 km (HK$1.50/kWh, including the ~12% AC charging loss) across the 7 electric models we price — versus about HK$222.88 of petrol for a typical 7 L/100 km car. Home charging only; every model below links to its full cost page.
Per 100 km at home — Hong Kong
| Electric model | kWh/100km | Per 100 km at home |
|---|---|---|
| BYD Dolphin Standard | 10.95 kWh/100km | HK$18.66 |
| BYD Atto 2 Premium | 12.47 kWh/100km | HK$21.26 |
| BYD Atto 3 Superior | 12.6 kWh/100km | HK$21.48 |
| BYD Seal Extended Range | 12.7 kWh/100km | HK$21.65 |
| Tesla Model 3 Premium Rear-Wheel Drive | 13.4 kWh/100km | HK$22.84 |
| BYD Sealion 7 Standard | 13.8 kWh/100km | HK$23.52 |
| Tesla Model Y Premium Rear-Wheel Drive | 13.9 kWh/100km | HK$23.69 |
A typical 7 L/100 km petrol car: HK$222.88/100 km.
FAQ
How much does a full charge cost in Hong Kong?
Roughly HK$77–HK$141 for the electric models we price in Hong Kong (battery size × the local home rate, charging loss included) — most drivers top up daily rather than charging 0→100%.
Is charging an EV cheaper than petrol in Hong Kong?
Per 100 km, home charging costs about HK$18.66–HK$23.69 versus about HK$222.88 of petrol for a typical 7 L/100 km car — at the dated local rates shown above. Whether the EV wins the FULL 5-year cost (purchase, depreciation, insurance) is a different question; each model page shows the honest total.
How much does charging an EV cost per month?
About HK$180/month for a typical 10,000 km/year driver at the local average — proportionally more for heavier driving or pricier tariffs.
Does this include public or fast charging?
No — these figures are home charging only. Public and DC fast charging is billed per session by each network, often 2–3× the home rate, and is not in this data.