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EV Charging Cost & Trip Planner.

Estimate home vs public EV charging costs, charging duration, and trip expenses per mile or km

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Vehicle Presets
Estimated Home Charge Cost: $8.00

Estimated Home Charge Cost

Home Overnight Charging
$8.00
Refilling 20% to 80% adds approximately 161 mi of range at $0.050 per mi.
Public Charger Cost: $21.00

Public Charger Cost

$21.00
Added Range: 161 mi

Added Range

161.00mi
Full Battery Range: 268 mi

Full Battery Range

268.00mi
Est. Charge Time: 4.3 hrs

Est. Charge Time

4.3hrs

How to Use

How EV Charging Costs Are Calculated: Charging expense depends on total battery energy transferred (kWh), charger efficiency loss (typically ~10% heat loss during AC charging), and local utility tariffs.

Home vs. Public Fast Charging: Home Level 2 charging is significantly cheaper per kWh than commercial DC Fast Charging stations, which often include peak demand charges and fixed session fees.

FAQs

How much does it cost to charge an EV at home?

At the US average residential electricity rate of $0.16 per kWh, fully charging a 75 kWh battery costs about $12.00, providing ~250–300 miles of driving range.

Why is public fast charging more expensive than home charging?

Public Level 3 DC Fast Chargers incur commercial demand charges, equipment installation overhead, and subscription/session fees, making per-kWh costs 2x to 4x higher than residential rates.

How do I convert EV efficiency from kWh/mi to MPGe?

1 gallon of gasoline contains approximately 33.7 kWh of energy. Divide 33.7 by your vehicle's kWh/mi rate to get equivalent MPGe.

Cite this calculator

Canonical URL: https://mathify.one/ru/sustainability/ev-charging-cost

Cite as: Mathify. (2026). Стоимость зарядки электромобиля и планировщик поездок. https://mathify.one/ru/sustainability/ev-charging-cost

Use Cases

Plan a road trip with EV charging costs

Estimate the total charging cost for a trip by entering your trip distance, battery efficiency, and public charging rates. Compare with home charging to decide where to charge.

Example: Trip of 200 miles with 3.5 mi/kWh efficiency and $0.30/kWh public rate.

Compare home vs public charging for daily use

See how much you save by charging at home instead of using public chargers, including session fees.

Example: Charging 50 kWh at home ($0.15/kWh) vs public ($0.40/kWh + $1 fee).

Frequently Asked Questions

How does the EV charging cost calculator work?
Enter your battery capacity, starting and target charge percentages, home and public rates, public session fee, efficiency, charger power, and trip distance. The calculator estimates energy needed, charging cost at home and public stations, charge time, and trip cost per mile or km.
What is the difference between home and public charging costs?
Home charging uses your home electricity rate, while public charging uses a higher per-kWh rate plus a session fee. The calculator shows both costs so you can see potential savings from charging at home.
How is charge time calculated?
Charge time is based on the energy needed (from starting to target charge) divided by the charger power (kW), assuming ideal conditions. Actual time may vary due to charging curves and battery management.

Tips & Common Mistakes

Tips

  • Use your actual battery capacity from your EV's manual or dashboard, not the advertised total.
  • Check your home electricity bill for the exact per-kWh rate, including taxes and fees.
  • Public charging rates vary by network and location; include session fees for accurate comparison.
  • For trip planning, use your real-world efficiency (mi/kWh or km/kWh) rather than the official rating.

Common Mistakes to Avoid

  • Entering starting and target charge as decimals (e.g., 0.8) instead of percentages (80).
  • Forgetting to include the public session fee, which can significantly increase cost.
  • Using the battery capacity as the energy needed without accounting for the charge percentage difference.

Last updated: August 13, 2026