Open the EV Charging Cost Calculator
Enter your EV's battery size, electricity rate and efficiency to see the real cost to fully charge, cost per mile, and cost for any trip distance.
- Free to use
- No signup
- Nothing to install
- Runs in your browser
Illustration. Open the tool for the real thing.
What is the EV Charging Cost Calculator?
Enter your EV's battery capacity (kWh), your electricity rate ($/kWh) and your car's real-world efficiency (miles per kWh, or use a typical default). This tool multiplies battery size by your electricity rate for a real 'cost to fully charge' figure, divides by range for a real cost-per-mile, and lets you enter any trip distance for a real trip cost — the same honest arithmetic as a gas cost calculator, just using electricity instead of gasoline.
It also compares home charging (your entered household rate) against a typical public fast-charging rate, since DC fast chargers commonly cost 2-3x more per kWh than charging at home — a real gap that matters for anyone deciding where to charge.
3 steps to your result
Open the tool and follow along. Nothing to install.
What you get
Battery size × your electricity rate, no guessing.
Based on your car's real efficiency in miles per kWh.
Enter a trip length for an exact cost, with a round-trip toggle.
See the real cost gap between charging at home and at a fast charger.
AZRS tools are free to open and use.
It opens in your browser, so there is nothing to download.
Used for
Pick one to see how it fits.
EV owners and shoppers
See real running costs before or after buying an electric car.
Try it freeAnyone comparing EV vs gas
Get a real cost-per-mile figure to compare directly against a gas car's cost per mile.
Try it freeHow it compares
A plain look at this tool next to the usual alternative.
| This calculator | Desktop software | |
|---|---|---|
| Install | Nothing to install | Usually an app or program to install |
| Account | No signup | Depends on the product |
| Cost | Free to use | Free or paid, depends on the product |
| Where it runs | In your browser tab | On your computer |
Questions people ask
How is the cost to fully charge calculated?
Battery size in kWh × your entered electricity rate in $/kWh — real, direct arithmetic.
Why is public charging more expensive?
DC fast chargers have higher equipment and operating costs, so networks commonly charge 2-3x a typical home electricity rate; the exact rate varies by network and location, so this uses a stated typical reference rate.
Does this account for charging losses?
No, it's a simplified model based on energy delivered to the battery at your stated efficiency; real efficiency numbers you enter already reflect typical real-world driving, which partly absorbs this.
What's a typical EV efficiency?
Most EVs today get roughly 3-4 miles per kWh; smaller or more efficient models can exceed 4, and larger SUVs or trucks can be under 2.5 — check your vehicle's EPA rating as a starting point.
Is my data stored?
No, everything runs locally in your browser.
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Try the EV Charging Cost Calculator now
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