What you pay to charge depends on where you charge and what electricity costs where you live
The cost to charge an electric car is not a single number—it changes based on your local electricity rate, whether you charge at home or at a public station, the time of day you plug in, and how much of the battery you're filling. A full charge at home typically costs between $3 and $15, while public fast chargers can cost $10 to $30 for a similar amount of energy. The real number that matters to you is your own electricity rate, which you can find on your monthly utility bill.
Most EV owners charge at home overnight, where the cost per kilowatt-hour (kWh) is lowest. Public charging networks charge differently—some by the minute, some by the kWh, and some by subscription. Understanding which method you'll use most often is the first step to knowing what charging will actually cost you.
Key Takeaways
- Home charging costs $0.12 to $0.18 per kWh on average in the United States, though rates vary significantly by state and utility company.
- A full charge at home for most electric cars costs $3 to $15, depending on battery size and your local electricity rate.
- Public DC fast chargers typically cost $0.25 to $0.50 per kWh or $10 to $30 per session, and pricing varies by network and location.
- Level 2 public chargers (slower, used at workplaces and shopping centers) usually cost $1 to $3 per hour or $0.15 to $0.30 per kWh.
- Time-of-use rates from your utility can cut your home charging cost by 30 to 50 percent if you charge during off-peak hours.
Home charging costs and how to calculate yours
Home charging is the cheapest way to power an electric car because you're using your household electricity rate. To find your rate, look at your monthly utility bill—it will show the price per kWh you pay. Most people in the United States pay between $0.12 and $0.18 per kWh, but this varies widely by state. Louisiana averages around $0.10 per kWh, while Hawaii and Massachusetts can exceed $0.22 per kWh.
To calculate what a full charge costs you, multiply your kWh rate by your car's battery size. A Tesla Model 3 with a 60 kWh battery charged at $0.15 per kWh costs $9. A Chevrolet Bolt EV with a 66 kWh battery at the same rate costs $9.90. If you have a larger battery—say, a 100 kWh pack in a Tesla Model S—that same charge costs $15. The math is straightforward once you know your rate.
Most home charging happens on a Level 2 charger (240 volts), which adds 25 to 30 miles of range per hour. A standard 120-volt outlet charges much more slowly and costs the same per kWh, so it's rarely practical for daily use unless you only drive short distances.
Time-of-use rates can cut your charging cost significantly
Many utility companies offer time-of-use (TOU) rates, which charge less per kWh during off-peak hours—typically late evening through early morning. If your utility offers this plan, switching to it can reduce your charging cost by 30 to 50 percent. Off-peak rates often run $0.08 to $0.12 per kWh, while peak rates can be $0.20 or higher.
The catch is that you have to charge during the off-peak window, which usually closes by 9 or 10 a.m. If you charge overnight and leave for work early, this works perfectly. If you charge at 6 p.m. when you get home, you'll pay peak rates. Ask your utility whether a TOU plan is available for your address—not all utilities offer it, and some charge a small monthly fee for the plan itself.
Some utilities also offer special EV rates that are even cheaper than standard TOU plans, sometimes as low as $0.06 to $0.10 per kWh during off-peak hours. These programs are less common but worth asking about if you own an EV.
Public DC fast charging: cost per session and per kWh
DC fast chargers are the pumps you use on road trips or when you need a quick top-up away from home. They add 150 to 200 miles of range in 20 to 30 minutes. The cost structure varies by network. Tesla Superchargers, available to non-Tesla owners through the Magic Dock adapter, charge roughly $0.25 to $0.50 per kWh depending on location and demand. Electrify America charges $0.43 per kWh on average, though some locations are higher. EVgo and Chargepoint networks vary by location but typically fall in the $0.30 to $0.50 per kWh range.
A 20-minute fast charge that adds 150 miles typically costs $12 to $25. A full charge from 10 percent to 80 percent battery (the practical limit for fast charging, since the last 20 percent charges much more slowly) might cost $20 to $30. Some networks charge by the minute instead of by the kWh, which can be more expensive if you're a slow charger or if the station is congested.
Subscription plans exist for frequent fast-charger users. Tesla's Supercharger subscription costs around $12 per month and gives you lower per-kWh rates. Electrify America's membership plans range from $4 to $14 per month and reduce the per-kWh cost by $0.05 to $0.10. If you fast charge more than once a week, a subscription usually pays for itself.
Level 2 public charging at workplaces and shopping centers
Level 2 chargers (240 volts) are slower than DC fast chargers but cheaper to use. They add 25 to 30 miles of range per hour and are common at workplaces, apartment complexes, shopping centers, and hotels. Pricing varies widely. Some are free (especially at workplaces), some charge by the hour ($1 to $3), and some charge by the kWh ($0.15 to $0.30). A few networks charge a small monthly membership fee ($5 to $10) to unlock lower per-kWh rates.
Chargepoint is the largest Level 2 network in North America. Their pricing depends on the host location—a coffee shop might charge $0.20 per kWh, while a parking garage charges $0.25 per hour. EVgo and Electrify America also operate Level 2 chargers, usually at the same location as their fast chargers. If you charge for two hours at a Level 2 station, you might add 50 to 60 miles of range for $2 to $6, depending on the network and pricing model.
How battery size and driving habits affect your total charging cost
A smaller battery means lower charging costs per full charge, but it also means more frequent charging. A Nissan Leaf with a 40 kWh battery costs $6 to charge at home (at $0.15 per kWh) but has a range of around 150 miles. A Tesla Model 3 with a 60 kWh battery costs $9 to charge but goes 250 miles. Over 10,000 miles of driving, the Leaf requires more charging sessions, but each session is cheaper. The Model 3 requires fewer sessions but costs more per charge. The total cost per mile is often similar.
Your driving habits matter too. If you drive 30 miles per day and charge at home every night, you'll use about 8 to 10 kWh per day, costing $1.20 to $1.80 at average rates. If you drive 100 miles per day and rely on public charging, your costs will be higher because public charging is more expensive than home charging. Long road trips that require multiple fast-charging sessions will add significantly to your monthly cost.
Cold weather reduces battery efficiency, meaning you'll use more kWh to travel the same distance. In winter, expect 20 to 40 percent lower range, which translates to higher charging costs per mile driven.
Comparing the cost of charging to gasoline
To understand whether an electric car is cheaper to fuel than a gas car, compare the cost per mile. At $0.15 per kWh and 3.5 miles per kWh (a typical efficiency for modern EVs), home charging costs about $0.04 per mile. At $3.50 per gallon and 25 miles per gallon (typical for a sedan), gasoline costs $0.14 per mile. Home charging is roughly one-third the cost of gasoline.
Public DC fast charging changes the math. At $0.40 per kWh and 3.5 miles per kWh, fast charging costs about $0.11 per mile—still cheaper than gasoline but not by as much. If you rely on fast charging for most of your driving, the cost advantage shrinks. Most EV owners do 80 to 90 percent of their charging at home, so their average cost per mile is closer to the home charging rate.
The cost difference also depends on your local electricity rate and gas prices. In states with cheap electricity and high gas prices, the savings are larger. In states with expensive electricity and cheap gas, the advantage is smaller but still present in most cases.
Frequently Asked Questions
Does it cost more to charge an electric car in winter?
Yes. Cold weather reduces battery efficiency by 20 to 40 percent, meaning you use more kWh to travel the same distance. A charge that costs $9 in summer might cost $11 to $12 in winter. Preheating the cabin while plugged in (rather than using battery power) can reduce this penalty.
What's the difference between charging by the kWh and charging by the minute?
Charging by the kWh is fairer if you're a fast charger or if the station is uncongested. Charging by the minute penalizes you if the charger slows down as the battery fills (which happens naturally above 80 percent). For a 20-minute fast charge, per-kWh pricing usually costs $15 to $25, while per-minute pricing might cost $20 to $35 depending on the network.
Can I charge my electric car at home if I rent an apartment?
It depends on your lease and whether your building has electrical infrastructure. Some apartments have Level 2 chargers in parking lots. Others allow you to install a charger at your own expense if the landlord approves. If home charging isn't available, you'll rely on public charging, which costs more. Ask your landlord and your utility about options before buying an EV.
Is it cheaper to charge during the day or at night?
Night is almost always cheaper if your utility offers time-of-use rates. Off-peak rates (typically 9 p.m. to 6 a.m.) are 30 to 50 percent lower than peak rates. If your utility doesn't offer TOU rates, the time of day doesn't matter—you pay the same rate all day.
How much does it cost to install a home charger?
A Level 2 charger costs $500 to $2,500 installed, depending on whether your home already has 240-volt service nearby and how far the electrician has to run new wiring. Some utilities and state programs offer rebates that cover part of the cost. A standard 120-volt outlet costs nothing to use but charges very slowly—usually 3 to 5 miles of range per hour.