Worldwide cost estimate

EV Charging Cost Calculator

Estimate the cost to charge any electric car from its current battery level to your target. Use your own currency and tariff, then include charging losses, tax and public-station fees.

Use the free tool

Reviewed 13 July 2026 Worldwide estimate. Your inputs stay in this browser and no live tariff, vehicle or availability claim is made.

Three quick steps

What will this charge cost?

Start with the example, then replace the battery and tariff with the numbers from your car and charging provider. The answer updates as you type.

No sign-up

Your charging session

Tell us the usable battery size and how much charge you want to add.

Usable battery size kWh Use usable capacity from the vehicle specification, not gross capacity.

Quick battery size

Common charge goal

Battery now % Charge to %

Adding 60% of the battery.

Your electricity price

Copy the currency and per-kWh price from your home tariff or charging app.

Currency Price for 1 kWh USD

Example tariff shown. Replace it with your local price for a personal estimate.

3. Add driving costs Optional · cost per km or mile and monthly estimate Add details

Distance unit

Kilometres Miles

Vehicle use per 100 km kWh Driving per month km Charging efficiency % Most drivers can keep the 90% example. It accounts for energy lost between the grid and battery.

Public charger fees and discounts Optional · no extra fees added Add fees

Per-minute charging fee

Only use this when the operator bills charging time separately from energy.

Session timemin Free grace timemin Price per minuteUSD

Parking fee

Add parking time only when it is billed separately.

Parked timemin Free grace timemin Price per minuteUSD

Idle fee after charging

Use the time the car remains connected after charging finishes.

Idle timemin Free grace timemin Price per minuteUSD

Other price adjustments

Fixed session feeUSD Fixed roaming feeUSD Roaming markup% Membership discount% Tax added after discount%

Results update automatically when all required values are valid.

Estimated all-in session

—

Estimate

Using the example values shown.

Battery energy: —
Grid energy: —
Effective grid price: —
Range added: —

Driving cost

Per km: —
Per mile: —
Per 100 km: —
Per 100 miles: —

Monthly at entered distance—

Annual at same distance—

Session breakdown

Energy: —
Charging time: —
Parking: —
Idle: —
Session fee: —
Roaming: —
Discount: —
Tax: —

The charging operator’s receipt remains authoritative. This calculator does not fetch live tariffs, tax or exchange rates.

How EV charging cost is calculated

1 Battery energy added equals usable battery capacity multiplied by the change in battery percentage.
2 Grid energy equals battery energy divided by charging efficiency, so losses are counted once.
3 The session total itemises energy, time, session, parking, idle and roaming charges before discounts and tax.
4 Distance costs use the entered vehicle consumption. Currency selection formats your inputs; it does not fetch a live tariff or exchange rate.

What this tool can answer

Core calculator

EV charging cost calculator · electric car charging cost calculator · cost to charge electric car calculator

Battery percentage

cost to charge EV from 20% to 80% · partial EV charge cost · cost to fully charge an electric car

Distance

EV charging cost per km · EV cost per mile calculator · electric car running cost per 100 km

Tariffs and fees

home EV charging cost calculator · public EV charging cost calculator · EV idle fee calculator · EV charging price per kWh

EV Charging Cost Calculator FAQ

Source-backed answers to the questions drivers ask before using this estimate.

How much does it cost to charge an electric car?

Multiply the estimated electricity used by the local price per kWh, then add any session, time, parking, idle, roaming and tax charges. Tariffs and fees differ by country, network and time of day, so there is no single worldwide charging price.

Sources: US Alternative Fuels Data Center · EU alternative-fuels regulation

How do I calculate the cost to charge an EV from 20% to 80%?

A 20% to 80% session adds 60% of the usable battery capacity. Multiply usable capacity by 0.60, divide by charging efficiency to estimate grid energy, multiply by the price per kWh, and then add applicable fees and tax.

Source: US Department of Energy program guide

Should I use usable or gross battery capacity?

Use usable capacity when it is available because it represents the part of the battery the vehicle permits for normal operation. Gross or rated capacity can include protective buffers and may overestimate the energy needed between two displayed charge percentages.

Source: US EPA technical explanation

Do charging losses increase the cost of charging?

Yes. Some electricity is lost in the charging equipment, cable, onboard charger, battery and vehicle systems. Estimate grid energy by dividing battery energy added by charging efficiency. Do not add losses again when using a consumption figure that already measures electricity at the wall.

Source: US EPA fuel economy and range testing

How do I calculate EV charging cost per km or mile?

For kWh per 100 km, multiply consumption by the price per kWh and divide by 100 for cost per km. For miles per kWh, divide the price per kWh by miles per kWh. Include charging losses once, either in wall-based consumption or as a separate efficiency adjustment.

Source: US Alternative Fuels Data Center

Is home charging cheaper than public charging?

It often is, but compare your actual home tariff with the public charger’s complete price. Home costs can change by time of use, while public sessions can add time, session, parking, occupancy, roaming and tax charges.

Source: IEA Global EV Outlook 2026

What fees can a public EV charger add?

A tariff may include a price per kWh, price per minute, fixed session fee and other charges. Parking, idle or occupancy fees and roaming-provider charges may also apply. Itemising each component makes the estimate easier to compare with the operator’s price display.

Sources: EU alternative-fuels regulation · UK public charge point guidance

What is an EV charging idle or occupancy fee?

It is a time-based charge intended to discourage a vehicle from continuing to occupy a charger. Some fees begin after charging ends and a grace period; others can start above a specified battery level at busy sites. Enter the exact rule shown by the operator.

Sources: Tesla Supercharging support · BC Hydro charging help

Can an EV charger bill by the minute instead of by kWh?

Yes. Charging rules differ by market and operator. For a time-based tariff, multiply the chargeable minutes by the per-minute rate and add energy, session, parking, idle, roaming and tax charges that also apply.

Source: Tesla Supercharging support

Why can the calculator total differ from my charging receipt?

The receipt may use metered energy, dynamic or time-of-use pricing, operator rounding, minimum charges, taxes, discounts and fees that were not known beforehand. This calculator is an estimate based only on the values you enter.

Source: BC Hydro charging help

AC and DC charging estimate