EV fast charging cost calculator

About $25 to $37 for a typical 10% to 80% session on a 75 kWh battery at most U.S. networks in 2026, including roughly 8% charging losses. The national average price was about $0.54 per kWh in the second quarter of 2026, according to charging-data firm Paren, which puts a 10% to 80% charge at about $31. Prices range from about $0.43 per kWh in Nebraska to about $0.86 in Hawaii, and the rate at a single station can change with the time of day.

It depends on whether you drive a Tesla. DCFC Tracker's September 2026 data put the Supercharger member rate, which Tesla owners get automatically, at about $0.44 per kWh on average, and the standard rate for other EVs at about $0.63. For a 10% to 80% charge on a 75 kWh battery, that's roughly $25 for a Tesla owner and $36 for a non-Tesla EV without a membership. Non-Tesla drivers can get the lower rate with Tesla's $12.99 monthly Supercharging membership.

Only by a little, and not always. An average EV (3.6 miles per kWh) fast charging at the $0.54 national average costs about 15 cents a mile. A 25-mpg car with gas at $4.31 a gallon, the AAA average in mid-September 2026, costs about 17 cents a mile. Above roughly $0.62 per kWh, the same EV costs more per mile than that gas car, which is where standard rates at Electrify America, EVgo and non-member Superchargers sat in 2026. Home charging, at about 5 cents a mile, is where EVs save real money.

Only if you fast charge enough each month. A membership pays off when the discount per kWh times the kWh you buy is bigger than the monthly fee. Tesla's $12.99 membership for non-Tesla EVs saved about $0.20 per kWh in September 2026, so it breaks even at roughly 65 kWh a month, a bit more than one 10% to 80% session on a 75 kWh battery. If you only fast charge on a few road trips a year, subscribe for the month you travel or skip it.

The station owner pays for expensive high-power equipment, installation, maintenance and commercial electricity bills that often include demand charges based on peak power use, then adds a margin. Home charging only costs your residential rate, which EIA put at about 18.3 cents per kWh on average in June 2026. At the national fast charging average, that makes a fast charger roughly three times more expensive per kWh.

Some energy is lost as heat in the charger and cable, and some goes to heating or cooling the battery during the session. Testing by the German motoring club ADAC found total fast charging losses of about 5% to 15%, depending on the car and conditions. Most networks bill the energy their meter measures, so you pay for those losses. This calculator adds 8% by default, and you can change it under More settings.

They are per-minute charges for staying plugged in after you're done, meant to free up stalls. Tesla's support page says idle fees apply only when a site is at least half full, are waived if you move within five minutes, and double when the site is full. At busy sites, Tesla may instead charge a congestion fee once your battery passes a set level, such as 80%. Other networks, including Electrify America, also charge idle fees after a grace period. Leaving promptly avoids them.

Occasional fast charging is fine, and even frequent fast charging appears to cause little extra wear in modern EVs. A 2023 Recurrent study of more than 12,500 Teslas in the U.S. found no statistically significant difference in range loss between cars that fast charged more than 90% of the time and cars that rarely did. Recurrent still recommends avoiding fast charging in extreme heat and preconditioning the battery in cold weather.