EV Charging Cost Calculator

Calculate how much it costs to charge an EV at home or at a charging station: from current % to target % including charging losses and the tariff.

⚡ Battery details

Battery capacity (kWh)

Now (%)

Target (%)

Charging losses (%) (optional) Charging power (kW)

💸 Tariffs

Home

Price (UAH / kWh)

Charging station

Tariff type Price

Result

Enter values and click “Calculate”.

How does the EV charging cost calculator work?

The calculator estimates how much energy you need to add to the battery from the current charge level to the target. It uses the battery capacity (kWh) and the difference between “Now (%)” and “Target (%)”.

Then it applies charging losses (if provided). Losses mean you need to draw more energy from the grid than what ends up in the battery. The kWh from the grid are multiplied by the tariff to get the charging cost.

What does the result show?

You’ll see: energy into the battery, energy from the grid (including losses), estimated charging time (grid energy / power), and the cost for the selected source — home or station.

If both tariffs are filled (home and station), the calculator also shows a comparison — which option is cheaper and by how much.

FAQ

Why is “energy from the grid” higher than “energy into the battery”?

Because of charging losses: heat, power conversion, electronics, and battery balancing. Typical losses are 5–15% depending on the car, temperature and charging type.

What does “estimated charging time” mean?

It’s calculated as: kWh from the grid / power (kW). Real time may differ due to car/station limits and reduced power near 80–100% SoC.

How does the “UAH/min” station tariff work?

In “UAH/min” mode the calculator first estimates charging time and then calculates: minutes × tariff.

Does charging power change the kWh needed?

No. Power affects only time. Energy depends on battery capacity and the % difference (and losses).