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EV charging cost

Estimate cost, added range and ideal charging time for an electric car.

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YOUR RESULT

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WORKED EXAMPLE

EV charging cost: a worked example

With battery capacity (kwh) 60, starting charge (%) 20, target charge (%) 80, charging efficiency (%) 90, electricity price per kwh 0.27, charger power (kw) 7, the estimated charging cost is $10.80.

Inputs
Battery capacity (kWh)60
Starting charge (%)20
Target charge (%)80
Charging efficiency (%)90
Electricity price per kWh0.27
Charger power (kW)7
Results
Estimated charging cost$10.80
Energy from charger40 kWh
Energy added to battery36 kWh
Ideal charging time5h 42m 51s

Amounts are shown in US dollars for illustration. Choose your own currency in the calculator above; it labels amounts and does not convert them.

THE METHOD

How it works

Includes a user-supplied charging efficiency, but not real-world power tapering, standing charges or parking fees. The time estimate assumes constant charging power.

FormulaEnergy added = battery capacity × (target% − start%) ÷ (100 × efficiency).
WHY IT MATTERS

Make the numbers useful

Try changing one input at a time. The live result helps you see which assumption has the greatest effect.

Use Save scenario A, change an input, and compare both results side-by-side. You can also share your settings using a link.

Modelled results are estimates. Independently check decisions involving health, finances or safety.
QUESTIONS

Frequently asked questions

How is the ev charging cost calculated?

Energy added = battery capacity × (target% − start%) ÷ (100 × efficiency). Includes a user-supplied charging efficiency, but not real-world power tapering, standing charges or parking fees. The time estimate assumes constant charging power.

What does the ev charging cost example show?

With battery capacity (kwh) 60, starting charge (%) 20, target charge (%) 80, charging efficiency (%) 90, electricity price per kwh 0.27, charger power (kw) 7, the estimated charging cost is $10.80. Energy from charger: 40 kWh; Energy added to battery: 36 kWh; Ideal charging time: 5h 42m 51s.

What assumptions and limits apply?

This is an estimate based on the inputs and assumptions shown on this page, not professional advice. Check anything with financial, health or safety consequences independently.

Is my data private?

Yes. Calculations run in your browser and your numbers are not sent to a server. A share link contains the inputs you choose to share, so check it before sending it to anyone.

Can I use my own currency?

Yes. Pick from 33 currencies and the amounts are labelled to match. The selector does not convert between currencies, so enter prices in your own currency.

FOR WEBSITE OWNERS

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