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EV Charging Cost Calculator
Find the cost to charge an EV from battery size and electricity price.
Charging cost
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For this charge.
| Energy added | — |
|---|---|
| Battery size | — |
| Price | — |
| — |
Show our math
Enter your figures above to see the step-by-step working.
Everything computed client-sideEverything computed client-side — nothing leaves this page
How the EV Charging Cost Calculator Works
Charging cost is simply the energy you add times your electricity price. The energy added is the battery size times the percentage you charge — going from 20% to 80% of a 75 kWh battery adds 45 kWh. At $0.15 per kWh that’s about $6.75 for the session.
Home charging is usually cheapest; public DC fast chargers cost more per kWh. Real energy use runs a little higher than the battery math because of charging losses (roughly 10%), so add a bit for a real-world figure.
cost = battery size × charge % added × price per kWh
Frequently Asked Questions
How much does it cost to charge an EV?
Multiply the energy added (battery size × the percentage charged) by your electricity price. A typical home charge runs a few dollars.
Is home charging cheaper than public?
Almost always. Home rates are usually far below public DC fast-charging prices, which include a premium for speed and convenience.
Should I account for charging losses?
For a precise figure, yes — add about 10% for energy lost as heat during charging. This calculator shows the battery energy added.
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