Charging costs depend on your electricity rate, the charger type, and how far you drive
The cost to charge a Tesla ranges from roughly $0.03 to $0.30 per mile, depending on where and how you charge. Home charging on a standard residential electricity plan is almost always cheapest. Public Level 2 chargers cost more per kilowatt-hour but charge slower, so the per-mile cost varies. Tesla Superchargers are the most expensive option per kilowatt-hour but deliver range fastest, making them practical for road trips rather than daily charging.
Your actual cost depends on three things: your local electricity rate (which varies by state and utility), the efficiency of your Tesla model, and whether you're charging at home, at a public Level 2 station, or at a Supercharger. Knowing these numbers helps you decide whether to install a home charger, which chargers to use for daily driving, and when Supercharging makes sense financially.
Key Takeaways
- Home charging on a standard residential plan typically costs $0.04 to $0.06 per mile, making it the cheapest daily option for most owners.
- Public Level 2 chargers usually cost $0.10 to $0.20 per mile depending on the network and your location, and charge much slower than home chargers.
- Tesla Superchargers cost $0.25 to $0.50 per mile and are designed for road trips, not daily charging, because of their high per-kilowatt-hour rates.
- A Tesla Model 3 or Model Y uses roughly 0.25 kilowatt-hours per mile, while larger models like the Model S use closer to 0.30 kilowatt-hours per mile.
- Installing a home Level 2 charger (240-volt) costs $500 to $2,500 upfront but pays for itself within two to four years if you charge daily.
Home charging: the lowest cost per mile
Charging at home on your existing residential electricity plan is almost always the cheapest way to power a Tesla. The cost depends on your local utility rate, which varies widely by state and region. As of 2024, residential electricity rates range from roughly $0.10 per kilowatt-hour in Louisiana to $0.25 per kilowatt-hour in Hawaii, with most states falling between $0.12 and $0.18 per kilowatt-hour.
A Tesla Model 3 or Model Y uses approximately 0.25 kilowatt-hours per mile under normal driving conditions. At a $0.15 per kilowatt-hour rate (a middle-of-the-road U.S. average), that works out to about $0.04 per mile. A Model S or Model X, which are larger and less efficient, uses roughly 0.30 kilowatt-hours per mile, or about $0.05 per mile at the same rate. If you charge overnight on a standard plan, you pay whatever your utility charges during those hours—usually the same rate as daytime charging unless you have a time-of-use plan.
Some utilities offer time-of-use rates that charge less during off-peak hours (typically 9 p.m. to 6 a.m.). If your rate drops to $0.08 per kilowatt-hour during those hours, charging a Model 3 costs only $0.02 per mile. Check your utility's website or your most recent bill to see whether a time-of-use plan is available in your area and whether the savings justify switching.
Home charger installation: upfront cost versus long-term savings
Most Teslas come with a mobile connector that plugs into a standard 120-volt household outlet, but it charges very slowly—roughly 2 to 3 miles of range per hour. For daily driving, installing a dedicated Level 2 charger (240-volt) is practical. A Level 2 charger adds 25 to 30 miles of range per hour, so a Model 3 can fully charge overnight.
Installation costs range from $500 to $2,500 depending on your home's electrical panel, the distance from the panel to the charger location, and local labor rates. A straightforward installation in a home with adequate panel capacity might cost $800 to $1,200. Homes that need panel upgrades or long cable runs can cost $2,000 or more. Some utilities and state programs offer rebates of $500 to $1,000 toward installation, which you can research through the Database of State Incentives for Renewables and Efficiency (DSIRE) or your utility directly.
The payback period depends on how much you drive and what you would otherwise spend on public charging or Supercharging. If you drive 12,000 miles per year and would otherwise use public Level 2 chargers at $0.15 per mile, you'd spend $1,800 annually on charging. A $1,200 home charger installation pays for itself in eight months. If you drive less or have cheaper public charging available, the payback takes longer but still typically occurs within two to four years.
Public Level 2 chargers: moderate cost, slower charging
Public Level 2 chargers are found at shopping centers, workplaces, parking garages, and dedicated charging networks like Electrify America, EVgo, and ChargePoint. They charge at 7 to 19 kilowatts, adding 25 to 30 miles of range per hour—similar to home chargers but with higher per-kilowatt-hour costs.
Pricing varies by network and location. Some chargers are free (often at workplaces or retail locations), while others charge $0.25 to $0.50 per kilowatt-hour. At $0.40 per kilowatt-hour, charging a Model 3 costs roughly $0.10 per mile. Subscription plans are common: ChargePoint and Electrify America offer monthly memberships ($4 to $15) that reduce per-kilowatt-hour rates, and some networks offer pay-as-you-go pricing without a membership. Always check the network's app before you plug in to see the current rate at that specific location.
Public Level 2 charging makes sense for workplace charging (especially if it's free or subsidized), for topping up during errands, or for road trips when you have time to charge slowly. For daily commuting, home charging is almost always cheaper and more convenient.
Tesla Superchargers: fastest but most expensive
Tesla Superchargers deliver 150 to 250 kilowatts, adding 200 to 300 miles of range in 20 to 30 minutes. They are designed for road trips, not daily charging. Supercharger pricing varies by location and time of day but typically ranges from $0.25 to $0.50 per kilowatt-hour as of 2024. At $0.35 per kilowatt-hour, charging a Model 3 costs roughly $0.09 per kilowatt-hour × 0.25 miles per kilowatt-hour = $0.09 per mile, but the real cost is higher because charging slows dramatically after 80% state of charge.
A more realistic calculation: adding 200 miles of range at a Supercharger costs roughly $15 to $25, or $0.075 to $0.125 per mile. This is three to four times the cost of home charging but far faster. Supercharging is economical for road trips where speed matters and you're not paying daily. Using Superchargers for regular commuting inflates your per-mile cost significantly.
Tesla offers different Supercharger pricing models depending on your vehicle and region. Some owners have unlimited free Supercharging as part of their purchase, while others pay per use. Check your Tesla account to see your current Supercharger rate and whether any free charging is included with your vehicle.
Comparing total charging costs across scenarios
For a driver who covers 12,000 miles annually, home charging at $0.04 per mile costs $480 per year. The same driving using public Level 2 chargers at $0.10 per mile costs $1,200 per year. Relying on Superchargers at $0.09 per mile costs $1,080 per year. Over five years, the difference between home charging and public charging is $3,600—more than enough to justify a $1,200 home charger installation.
The table below shows how per-mile costs compare across the most common charging scenarios. These figures assume a Model 3 with 0.25 kilowatt-hour efficiency and account for typical charging losses. Your actual costs will vary based on your local electricity rates, vehicle model, and driving patterns.
| Charging Method | Cost per Kilowatt-Hour | Cost per Mile (Model 3) | Best Use |
|---|---|---|---|
| Home charging (240V, $0.15/kWh rate) | $0.15 | $0.04 | Daily commuting |
| Home charging (time-of-use, $0.08/kWh rate) | $0.08 | $0.02 | Daily commuting, overnight |
| Public Level 2 ($0.40/kWh) | $0.40 | $0.10 | Workplace, shopping, topping up |
| Tesla Supercharger ($0.35/kWh) | $0.35 | $0.09 (effective) | Road trips, long distance |
Factors that affect your actual charging cost
Your real per-mile cost depends on efficiency losses, charging speed, and your local electricity rates. Charging is never 100% efficient; energy is lost as heat in the charger, cable, and battery. Home chargers typically lose 5 to 10% of energy, while Superchargers lose 10 to 15%. This means you pay for slightly more kilowatt-hours than the battery actually stores.
Cold weather reduces efficiency significantly. A Tesla charged in freezing temperatures uses 20 to 40% more energy to reach the same range because the battery heats itself and the cabin. If you live in a cold climate, your per-mile cost increases during winter months. Preconditioning the battery while plugged in (available on most Teslas) helps but doesn't eliminate the loss.
Charging speed also affects cost indirectly. Supercharging slows dramatically after 80% state of charge, so charging from 80% to 100% takes nearly as long as charging from 20% to 80% but adds only 20% more range. For road trips, it's usually cheaper to charge to 80% and move on rather than wait for a full charge. For daily driving, home charging overnight means you always start with a full battery, so this doesn't explore.
Frequently Asked Questions
How much does it cost to charge a Tesla Model 3 from empty to full at home?
A Model 3 has a 75-kilowatt-hour battery. At a $0.15 per kilowatt-hour residential rate, a full charge costs roughly $11.25 before accounting for efficiency losses. With 10% charging loss, the real cost is closer to $12.50. This provides roughly 250 miles of range, or about $0.05 per mile.
Do I save money with a time-of-use electricity plan?
Yes, if you charge during off-peak hours. Many utilities offer rates 30 to 50% lower during late night and early morning. If your off-peak rate is $0.08 per kilowatt-hour versus $0.15 during the day, charging overnight saves roughly $0.02 per mile. Over 12,000 annual miles, that's $240 per year. Check whether your utility offers time-of-use rates and whether the enrollment fee or plan changes make it worthwhile.
Is it cheaper to charge at work or at home?
Almost always at home, unless your workplace offers free charging. Free workplace charging saves you the full per-mile cost. Paid workplace chargers typically cost $0.10 to $0.20 per mile, which is two to five times home charging. If your workplace offers free or heavily subsidized charging, use it; otherwise, charge at home overnight.
What's the real cost of a Supercharger road trip?
Supercharging for a 500-mile road trip costs roughly $40 to $70 depending on the route and charger locations. This works out to $0.08 to $0.14 per mile. Home charging for the same distance would cost $2 to $3, so Supercharging is more expensive but necessary because you can't charge at home while traveling. For daily driving, Supercharging is not economical.
Does charging speed affect how much I pay per kilowatt-hour?
No. You pay the same per kilowatt-hour whether you charge at 7 kilowatts (Level 2) or 150 kilowatts (Supercharger). The difference is time: Level 2 takes 8 to 10 hours for a full charge, while Supercharging takes 20 to 30 minutes. The per-kilowatt-hour rate is set by the network or utility, not by how fast the charger delivers power.