Estimate the cost to charge your electric car at home or on a public charger, plus how many miles that charge adds.
Charging Cost
Home & public
Picking a model fills battery size and efficiency automatically.
Home: ~$0.10–0.20DC fast: ~$0.35–0.55
~90% for AC home charging, ~95% for DC fast charging.
$6.00
total cost for this charge
Energy added36 kWh
From the grid40 kWh
Range added144 miles
Charge progress60%
Cost = (battery × charge change) ÷ charging efficiency × rate. At 20%→80% on a 60 kWh pack you buy about 40 kWh from the grid, not 36.
Charging cost questions
How much does it cost to charge an EV at home?
Multiply the energy your car needs by your electricity rate and divide by charging efficiency. Example: 60 kWh battery, 20%→80%, $0.15/kWh, 90% efficiency ≈ (60 × 0.6) ÷ 0.9 × 0.15 ≈ $6.00.
Why is public fast charging so much more expensive?
DC fast chargers charge 3–5× the residential rate because of equipment, demand fees and network operating costs. Fast charging is for road trips; daily charging at home is usually far cheaper.
Should I charge to 100% every night?
Most manufacturers recommend keeping daily charging between 20% and 80% to extend battery life. Charge to 100% before long trips only.