AUTOSOCASION / Tools
Charging time and cost calculator
Charging time and cost calculator: enter your data, check the formula and compare scenarios with a worked example.
How to use this tool
Use figures for the same vehicle, period and units. Compare scenarios and check assumptions before making a decision.
Formula and assumptions
kWh = capacity × (to − from) / 100; h = kWh / power; € = kWh × price- capacity
- Usable capacity (kWh)
- from
- Initial charge (%)
- to
- Final charge (%)
- power
- Average charging power (kW)
- price
- Price per kWh (€)
Energy = capacity × percentage change. Time = energy / average power. Real losses and variations change the result.
Worked example
| Quantity | Result |
|---|---|
| Usable capacity (kWh) | 60 |
| Initial charge (%) | 20 |
| Final charge (%) | 80 |
| Average charging power (kW) | 7.4 |
| Price per kWh (€) | 0.2 |
| Battery energy (kWh) | 36.00 |
| Theoretical hours | 4.86 |
| Cost without losses (€) | 7.20 |
The result is an estimate based on your inputs. It is not an offer and does not replace manufacturer specifications, contract terms or professional inspection.