EV Charging Cost Calculator NZ

This calculator works out what it actually costs to charge an electric vehicle in New Zealand, and shows how much cheaper charging at home usually is than relying on public fast chargers. You enter your car's energy use in kWh per 100km, how far you drive in a typical year, and the power price per kWh at home and at public chargers. From these figures it works out your total energy use for the year, then applies both prices to show the yearly cost of charging entirely at home, the yearly cost of charging entirely in public, the cost per 100km at home, and the amount you save each year by charging at home instead. Because home electricity is usually far cheaper per unit than public fast charging, the gap between the two yearly totals can be significant. Use it to see the real value of a home charger or an off-peak power plan, to budget running costs before buying an EV, or to check whether public charging is costing you more than expected. Most drivers use a mix of both, so your actual bill will sit somewhere between the two figures shown. Energy use varies with the vehicle, driving style and weather, so check your own car's real-world figure rather than the manufacturer's claim. This is an indicative estimate only, based on the prices and distance you enter.

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Energy use varies with the car, driving and weather; check your vehicle's figure. Most drivers do a mix of home and public charging, so your real saving sits between these. Estimate only.