EV Charging Cost Calculator
Calculate electric vehicle charging costs for home and public stations. Enter battery size, rate, and efficiency.
100% client-side · no upload
Cost per full charge
Cost per 100 km
How to use
- Enter your EV's battery capacity in kWh (check your owner's manual or manufacturer specs).
- Enter the electricity rate you pay and the expected charging efficiency percentage.
- Optionally enter your range per charge to see the cost per 100 km.
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More ways to use this tool
Frequently Asked Questions
- Is this EV charging cost calculator free?
- Yes, completely free with no signup and no usage limits.
- Does my data leave my device?
- No. All calculations run in JavaScript inside your browser. Nothing is sent to any server.
- Does it work on mobile?
- Yes. The calculator is mobile-first and works on iPhone Safari and Android Chrome.
- What charging efficiency should I use?
- Home AC charging (Level 1 or 2) typically runs at 85–90% efficiency. DC fast charging is slightly more efficient at 90–95%. The remainder is lost as heat during the charging process.
- How do I find my EV's battery capacity?
- Check your vehicle's owner's manual or the manufacturer's website. Common examples: Tesla Model 3 Standard Range ≈ 57 kWh, Long Range ≈ 82 kWh; Nissan Leaf ≈ 40 kWh; Chevrolet Bolt ≈ 65 kWh.
Last updated: By jarvisbox