This electric vehicle charging cost calculator is provided by Hesapstan for users in Turkey who want to estimate EV charging cost, charging time, gained range and intercity electric trip cost.
What does this EV charging calculator calculate?
This calculator estimates the energy, cost and time needed to charge an electric vehicle from a current charge level to a target charge level. It can also estimate range gained, cost per 100 km and intercity EV trip cost when the required inputs are provided.
- It calculates net energy added to the battery.
- It estimates grid energy including charging efficiency loss.
- It calculates charging cost from electricity price and optional station fixed fee.
- It estimates charging time from charger power.
- It shows range gained and cost per 100 km if consumption is entered.
- It calculates intercity EV trip cost using KGM province-centre road distance.
This calculator does not fetch live charging prices, live station availability, battery temperature, charging curve or real traffic conditions. Electricity price, efficiency and charger power are user-entered assumptions.
How is EV charging cost calculated?
EV charging cost is calculated by estimating the energy added to the battery, adjusting it for charging efficiency, and multiplying the resulting grid energy by the electricity price per kWh.
The basic formula is: net energy = battery capacity × (target charge - current charge) / 100. Grid energy = net energy / charging efficiency. Total cost = grid energy × kWh price + optional station fixed fee.
The energy drawn from the grid is often higher than the net energy added to the battery because charging involves losses in the charger, cable, vehicle electronics and battery management.
What do battery capacity, current charge and target charge mean?
Battery capacity is the size of the EV battery in kWh. Current charge is the battery percentage before charging, and target charge is the percentage you want to reach after charging.
- Battery capacity: the size of the battery in kWh.
- Current charge level: the percentage before charging starts.
- Target charge level: the percentage you want after charging.
- Net energy: the energy added to the battery.
- Grid energy: the estimated energy drawn from the electricity supply after efficiency loss.
This calculator is designed for charging scenarios. The target charge level must be higher than the current charge level.
Why does charging efficiency affect cost?
Charging efficiency affects cost because not every kWh drawn from the grid becomes usable energy in the battery. Lower efficiency means more grid electricity is needed for the same battery increase.
For example, if the battery needs 30 kWh of net energy and the charging efficiency is 90%, the grid energy is about 33.33 kWh. A different efficiency assumption changes both energy and cost.
Real charging efficiency may vary by vehicle, charger, cable, temperature, battery condition and charging power. The value entered here should be treated as a planning assumption.
How is charging time estimated?
Charging time is estimated by dividing the grid energy by the charger power. The result is displayed as an approximate duration.
Formula: estimated charging time = grid energy / charger power. For example, 36 kWh of energy at 11 kW gives a simple estimate of about 3.27 hours.
Fast charging power is not always constant. Battery temperature, charge level, station capacity, vehicle software and shared station load can change the real charging time.
Socket, wallbox, AC and DC charging options
The charger type selector fills the charger power field with common assumptions. Socket, wallbox, AC public charging, DC fast charging and DC ultra charging represent different power levels.
- Socket: a low-power slow charging scenario.
- Wallbox: a more regular AC charging setup at home or work.
- AC public charging: public AC charging points.
- DC fast charging: used when faster charging is needed during travel.
- DC ultra charging: a high-power station assumption; real speed depends on the car and station.
The preset helps fill the charger power field. The actual station power and the maximum power accepted by the vehicle may be different.
How are range gained and cost per 100 km calculated?
If consumption is entered in kWh/100 km, the calculator estimates how many kilometres of range the charge adds and the approximate charging cost per 100 km.
Formula: range gained = net energy / consumption × 100. Cost per 100 km = total charging cost / (range gained / 100). Consumption must be entered as kWh per 100 km.
Real range can change with speed, temperature, air conditioning, tyre pressure, road slope, vehicle load and driving style. Treat gained range as an estimate.
How is intercity EV trip cost calculated in Turkey?
Intercity mode uses KGM province-centre road distance between two Turkish provinces. The distance is combined with the vehicle’s kWh/100 km consumption and electricity price to estimate trip energy and cost.
Formula: energy needed = distance / 100 × kWh/100 km consumption. Total cost = energy needed × electricity price. If round trip is selected, the distance is doubled.
KGM distance is a province-centre road distance. Actual address, stops, route choice, traffic, weather and charging stops can produce a different result.
How can home and public charging costs be compared?
Home and public charging costs can be compared by entering the relevant electricity price per kWh. For the same battery increase, a lower kWh price produces a lower total cost.
This calculator does not fetch tariffs automatically. Enter the kWh price for home electricity, workplace charging or public charging yourself. If a charging station has a fixed fee, enter it separately.
Public charging prices may differ by operator, socket type and station. Check the station app, operator screen or official access platforms such as EPDK Şarj@TR before relying on the result.
EV charging example
Suppose a 60 kWh battery is charged from 20% to 80%. The net energy added to the battery is 60 × (80 - 20) / 100 = 36 kWh.
If charging efficiency is 90%, grid energy is about 36 / 0.90 = 40 kWh. With an 8 TL/kWh electricity price and a 20 TL station fixed fee, total cost is 40 × 8 + 20 = 340 TL.
If the vehicle consumes 16 kWh/100 km, the gained range is about 36 / 16 × 100 = 225 km. The cost per 100 km is about 151 TL.
The kWh price and fixed fee in this example are used only to show the calculation logic. Check your actual electricity tariff or charging station price before making a decision.
Is EV charging cost the same as fuel cost?
EV charging cost and fuel cost can be compared for the same purpose, but they use different units. Electric vehicles use kWh, while petrol, diesel and LPG vehicles use litres.
To compare options, calculate cost per 100 km for the electric vehicle and compare it with the fuel consumption cost of a petrol, diesel or LPG vehicle. Charging time, station availability, travel stops and parking can also affect the decision.
Common mistakes
The most common EV charging calculation mistakes come from confusing battery percentage, kWh price, charging efficiency or the consumption unit.
- Entering remaining range instead of battery capacity.
- Entering target charge lower than current charge.
- Assuming charging efficiency is always 100%.
- Confusing kW and kWh.
- Entering km/kWh where the calculator expects kWh/100 km.
- Assuming public charging price is the same as home electricity price.
- Treating KGM distance as an address-to-address route.
What are the limits of this calculator?
This calculator is for information and planning. Its results depend on the battery, electricity price, efficiency, charger power, consumption and distance assumptions entered by the user.
- It does not fetch live charging prices or station availability.
- It does not model battery temperature, charging curves or vehicle software.
- It does not simulate power reduction during charging in detail.
- It does not automatically add travel to the station, waiting, parking or membership terms.
- KGM intercity distance is not door-to-door routing.
- It does not replace an official invoice or final travel cost statement.
For long-distance travel, fleet cost, commercial pricing or formal expense decisions, treat the result as an estimate. Check current charging price, station conditions and actual route separately.
Frequently Asked Questions
How is EV charging cost calculated?
First calculate the net energy added to the battery. Then adjust it for charging efficiency to estimate grid energy. Total cost is grid energy multiplied by kWh price, plus any fixed station fee.
What is the difference between kW and kWh?
kWh is an amount of energy, while kW is charging power. Charging cost is based on kWh, while estimated charging time depends on energy and kW power.
How do I calculate EV cost per 100 km?
When consumption is entered as kWh/100 km, the calculator estimates range gained and divides total charging cost by that range to show approximate cost per 100 km.
How is intercity EV trip cost calculated in Turkey?
Intercity mode uses KGM province-centre distance. The distance is multiplied by the vehicle’s kWh/100 km consumption and then by the electricity price to estimate trip cost.
Why can real charging cost differ from the result?
Real cost can change with current kWh price, charging efficiency, battery temperature, station power, vehicle software, route and driving conditions. Treat the result as an estimate.