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Full-charge cost and time for any EV.
Enter your EV's battery size, the electricity price per kWh, and your charger's power to see the cost of a full charge and how long it takes. It assumes a full 0–100% charge; most drivers top up from 20–80%, which is faster and cheaper on the battery.
EV charging cost is energy times price: kWh added x price per kWh. The kWh added is battery capacity x (target percent - starting percent) — charging a 60 kWh battery from 20 to 80 percent adds 60 x 0.60 = 36 kWh. Prices vary enormously by venue: home overnight rates of $0.12 to $0.20/kWh, public Level 2 chargers at $0.25 to $0.40, and DC fast chargers at $0.40 to $0.60+, with some networks billing per minute instead. Home charging is typically half to one-third the cost of fast charging, which is why EV economics favor drivers who can plug in overnight.
Efficiency translates energy into distance: most EVs do 3 to 4 miles per kWh (or 15 to 25 kWh per 100 km). Cost per mile is then price per kWh / miles per kWh — at $0.15/kWh home charging and 3.5 mi/kWh, driving costs $0.043 per mile, or $4.30 per 100 miles. Compare a 30 mpg gasoline car at $3.50/gallon: $0.117 per mile, or $11.70 per 100 miles — the EV runs at roughly one-third the fuel cost on home electricity, though fast-charging-only drivers see a much thinner advantage.
Two subtleties: charging losses of 5 to 15 percent mean the meter reads more than the battery receives (36 kWh into the battery may bill 40 kWh), and cold weather temporarily cuts usable range 20 to 40 percent, raising winter cost per mile. Battery size headlines matter less than efficiency for running costs — a smaller, efficient EV can be cheaper per mile than a big-battery flagship. This calculator prices a charging session from battery size, charge window, and electricity rate.
Cost = battery size (kWh) × price per kWh; charging time = battery size ÷ charger power (kW).
Energy added: 60 x (0.80 - 0.20) = 60 x 0.60 = 36 kWh. Cost: 36 x $0.15 = $5.40. With 10 percent charging losses, the meter actually records about 39.6 kWh, billing $5.94 — still under six dollars for roughly 36 x 3.5 = 126 miles of range. Cost per mile: $5.94 / 126 = $0.047. The gasoline equivalent for 126 miles at 30 mpg and $3.50/gal: 126/30 = 4.2 gallons x $3.50 = $14.70 — nearly two and a half times the EV's home-charging cost.
Energy needed at 3.5 mi/kWh: 300 / 3.5 = 85.71 kWh. Cost: 85.71 x $0.45 = $38.57. Per mile: $38.57 / 300 = $0.129 — actually slightly more than the $0.117/mile gasoline comparison above, which surprises many EV owners: fast-charging-only road trips can cost as much as gasoline. The EV's economic edge lives at home: the same 300 miles on $0.15/kWh home charging costs 85.71 x $0.15 = $12.86. That $25.71 gap per 300 miles is the financial argument for a home charger, which typically pays for itself within a year or two of regular driving.
Multiply battery size by your electricity price. A 60 kWh battery at $0.25/kWh costs $15.00 for a full charge — our calculator does it instantly.
Divide battery size by charger power. A 60 kWh battery on an 11 kW home charger takes about 5.5 hours; a 150 kW fast charger does it in under half an hour.
Home charging is usually the cheapest per kWh. Public fast chargers cost more but save hours — compare both with this calculator before a long trip.