EV charging cost calculator

Estimate charging costs using battery capacity, the charge percentage needed and your price per kWh. Adjust the tariff and charging losses.

Processed in your browser: your data are not uploaded.

Set your data

Usable battery capacity (kWh)

Initial charge (%)

Final charge (%)

Losses on grid energy (%)

Price per kWh

Fixed session fee

Currency

Enter usable capacity, initial/final charge, losses, tariff per kWh and fixed fee. Example: 60 kWh from 20% to 80%, 10% loss, 0.30/kWh = 12.00 without fixed fee.

Result

Your result will appear here.

We count which tools are used most, without including entered values or file contents in the statistics. Privacy

How to use the tool

Enter usable capacity, initial/final charge, losses, tariff per kWh and fixed fee.
Example: 60 kWh from 20% to 80%, 10% loss, 0.30/kWh = 12.00 without fixed fee.

Method and principles

Formula

E = \frac{C \times \frac{SOC₂ - SOC₁}{100}}{1 - \frac{p}{100}}

Grid energy = capacity × charge change ÷ (1 − loss). Uses your entered tariff and fixed fee.

Practical example

Input

Usable battery capacity (kWh): 60
Initial charge (%): 20
Final charge (%): 80
Losses on grid energy (%): 10
Price per kWh: 0.3
Fixed session fee: 0
Currency: EUR

Result

€12.00 Grid energy: 40 kWh Battery energy: 36 kWh

Limits and checks

Limits and checks
Parameter	Value
Usable battery capacity (kWh)	≥ 0.01; ≤ 1000000000
Initial charge (%)	≥ 0; ≤ 100
Final charge (%)	≥ 0; ≤ 100
Losses on grid energy (%)	≥ 0; ≤ 80
Price per kWh	≥ 0; ≤ 1000000000
Fixed session fee	≥ 0; ≤ 1000000000

PRACTICAL GUIDES

What does a charge cost? Work from battery level to billed energy

A battery percentage is not a direct measurement of the energy you pay for. A useful estimate separates stored energy, input energy and the service’s billing basis.

Follow the steps

EV charging cost calculator

Set your data

Result

How to use the tool

Method and principles

Formula

Practical example

Limits and checks

What does a charge cost? Work from battery level to billed energy

You might also need

EV charging time calculator

Fuel consumption

Mileage reimbursement calculator