Energy
EV Home Charging Cost Planner
Plan home EV charging costs from your monthly driving, vehicle efficiency, charging losses and home electricity price. Enter your usage and energy price for a planning estimate.
Quick math
Use this for quick arithmetic, percentages, or to check figures while filling in the main tool, without leaving the page.
Estimate
Estimated monthly home charging cost: 360 NOK
- Energy drawn for charging
- 240 kWh
- Electricity cost
- 360 NOK
- Fixed charging fee
- 0 NOK
- Cost per kilometre
- 0 NOK
- Annual cost
- 4,320 NOK
This estimate covers home charging at your entered all-in electricity price. Actual use varies with driving, temperature and vehicle.
How to use this tool
- Use EV Home Charging Cost Planner for the question described above, and check that the inputs match your records and time period.
- Enter driving per month (Average monthly distance.).
- Enter vehicle consumption (Use the vehicle's observed or rated consumption.).
- Enter charging efficiency (Accounts for electricity lost during charging.).
- Enter home electricity price (Use an all-in marginal price for the home charger.).
- Enter monthly charging subscription or fee (Optional recurring charging fee.).
- Change driving per month, vehicle consumption, charging efficiency, home electricity price, monthly charging subscription or fee to compare scenarios, then check the units in the result.
Worked example with the prefilled values
This example shows how EV Home Charging Cost Planner uses its starting values. Change the calculator inputs to estimate your own situation.
- Driving per month
- 1200 km
- Vehicle consumption
- 18 kWh/100 km
- Charging efficiency
- 90 %
- Home electricity price
- 1.5 NOK/kWh
- Monthly charging subscription or fee
- 0 NOK/month
Estimated monthly home charging cost: 360 NOK
- Energy drawn for charging240 kWh
- Electricity cost360 NOK
- Fixed charging fee0 NOK
- Cost per kilometre0 NOK
- Annual cost4,320 NOK
This estimate covers home charging at your entered all-in electricity price. Actual use varies with driving, temperature and vehicle.
Formula and calculation logic
Monthly charging energy = monthly kilometres ÷ 100 × vehicle consumption ÷ charging efficiency
Monthly cost = charging energy × home electricity price + fixed monthly fee
Monthly driving energy = kilometres ÷ 100 × vehicle kWh per 100 km ÷ charging efficiency. Monthly energy cost adds the entered recurring fee.
Assumptions
- Uses an average vehicle consumption and charging efficiency. Public charging, seasonal driving, variable tariffs, and charging schedules are not modeled.
Published sources
Further reading for checking current rules and information. These links are not live inputs to the tool.
Questions about this tool
Are public charging sessions included?
No. The estimate covers home electricity and any monthly fee you enter. Add public charging separately if you want a total EV charging budget.