Is Level 1 charging enough, or do you need Level 2? Put your own numbers in.
Often, no. Plugged in for ten hours overnight, a 120-volt outlet puts back about 37 miles of range, and the average American car covers about 30 miles a day (AFDC, from federal highway statistics, read 2026-09-04). Level 2 is what you buy for long days, cold winters, and a garage circuit that already has something else on it.
Updated 2026-09-10
Level 1 keeps up, by about 7 miles a night.
About 30 miles on a normal day, against about 37 miles put back in 10 hours parked on a 120-volt outlet. Those are the national figures. Change them to yours and this answer changes with them.
Level 1, Level 2 at home, or public fast charging — what does each one cost you?
The same car and the same 919 miles a month, three ways of putting the energy in. The two time rows are filled in already, because hours do not depend on anybody's price.
- Level 1 keeps pace with about 7 miles a night in hand, on the cordset that came with the car. Nothing to buy and nothing to install.
- Level 2 clears a normal day by about 201 miles, and costs the same $66 a month as Level 1 does, because it is the same electricity. What the faster circuit buys is time, not money.
- Public DC hands back about 162 miles in each 1 hour stop, and living on it costs about 68 hours a year against about 2 at home. That is the part of the price nobody puts on a sign.
The public column's stop length, and how much of the pack a stop replaces, are our assumptions rather than measurements. Both are adjustable further down the page, and both move this row when you change them.
The money row is empty for public charging because no network publishes a national price per kilowatt-hour, and we would rather show you a gap than a number we made up. Put in the price on the charger you actually use and the column fills.
Change any of these. Every figure below moves.
The numbers already in the boxes are the national ones we could source, plus assumptions we have marked as assumptions. Yours will be different, and yours are the ones that decide this.
Nothing you type here is sent anywhere, stored, or used to identify you. The arithmetic runs in your browser.
How long does it take to charge an EV on a normal 120-volt outlet?
A 120-volt household outlet delivers about 1.44 kilowatts, which fills a 90 kWh battery from empty in about 62.5 hours. Over 10 hours parked at home it puts back about 37 miles of range for a car using 39 kWh per 100 miles.
The cordset draws 12 amps and not more because electrical code treats EV charging as a continuous load, and a 15-amp branch circuit is rated for exactly that much of one. There is nothing left over on that circuit for anything else.
The two lower bars run against the same twenty-four hours as the one above them. Level 2's is the shorter one because the pack fills before the night is over, not because it delivers less. What happens in the hours the car is not plugged in is not modelled here, and the strip does not claim to know.
How long does a Level 2 charger take?
A Level 2 charger drawing 40 amps on a 240-volt circuit delivers 9.6 kilowatts and fills the same 90 kWh battery from empty in about 9.4 hours, against about 62.5 hours on the 120-volt outlet.
The energy is identical. What you are paying an electrician for is a circuit that carries it faster, run to wherever the car actually parks, which is why the install price depends far more on that distance than on the charger.
| Battery size | Level 1, 120V at 12A | Level 2 at 32A | Level 2 at 40A | Level 2 at 48A |
|---|---|---|---|---|
| 50 kWh | 34.7 hr | 6.5 hr | 5.2 hr | 4.3 hr |
| 65 kWh | 45.1 hr | 8.5 hr | 6.8 hr | 5.6 hr |
| 80 kWh | 55.6 hr | 10.4 hr | 8.3 hr | 6.9 hr |
| 90 kWh | 62.5 hr | 11.7 hr | 9.4 hr | 7.8 hr |
| 110 kWh | 76.4 hr | 14.3 hr | 11.5 hr | 9.5 hr |
Does Level 1 keep up with how much you drive?
Yes, at these numbers. Driving 919 miles a month works out at about 30 miles on a normal day, and a 120-volt outlet puts back about 37 miles in 10 hours parked — so Level 1 keeps pace with roughly 7 miles a night in hand. The point where it stops keeping pace is around 37 miles a day at those hours.
That is a real answer and it is worth taking. A household in this position should run the cordset it already owns for a month and watch where the state of charge sits each Monday morning. Flat or climbing means the arithmetic held; drifting down week over week means it did not.
The crossover is not a rule of thumb. It is the miles a 120-volt outlet puts back in 10 hours parked, at the battery and the efficiency in the worksheet, so it moves the moment any of those move.
| Hours plugged in | Level 1 miles added | Level 2 miles added |
|---|---|---|
| 6 hr | 22 mi | 148 mi |
| 8 hr | 30 mi | 197 mi |
| 10 hr | 37 mi | 231 mi* |
| 12 hr | 44 mi | 231 mi* |
| 14 hr | 52 mi | 231 mi* |
| 24 hr | 89 mi | 231 mi* |
What does it cost to charge an EV at home?
Driving 919 miles a month buys about 358 kilowatt-hours. At 18.34 cents per kilowatt-hour — the US residential average for June 2026 data, published by the EIA and read on 2026-09-04 — that is about $66 a month, or about $789 a year.
Two things move that figure more than the charger does. The rate that applies to you is the marginal one on the last block of your bill, not the national average, and a time-of-use plan can move it by more than the difference between any two chargers. We do not model time-of-use rates here.
The public bar has no length to draw until you enter the price on the charger you actually use. The outline is empty on purpose. It is not a zero, and we are not going to fill it with a national average that does not exist.
| Where you charge | Per month | Per year |
|---|---|---|
| At home, on Level 2 | $66 | $789 |
| Public DC fast charging | No published national price | No published national price |
What does public DC fast charging cost per kWh?
Nobody publishes a national figure, and that is a fact about how the networks price rather than a gap in our research. Electrify America's own pricing page says the price is set by charger location, your plan and the energy delivered, and that real-time pricing appears in the app or on the charger. ChargePoint's own support page says its stations are independently owned and each owner sets what they charge. Both read on 2026-09-04.
The US Department of Energy's own alternative fuel price report leaves electricity out altogether, so there is no government number either. A plausible-looking national average would be the easiest thing on this page to write and the only thing on it we could not stand behind, so this page prints nothing until you supply the price on the charger you use.
What does a Level 2 install cost after your local rebate?
The federal charger credit no longer applies to property placed in service after June 30, 2026, so whatever your electric utility offers is now the whole incentive picture, and it varies enormously from one utility to the next. We publish an amount only when somebody here has read it off the sponsor's own page and dated it.
That means the honest answer for most of the country today is that we have nothing verified for your territory yet, and you will see us say so rather than quote an average. Put a ZIP in below to see which it is.
How many hours a year does public charging cost you?
Buying 358 kilowatt-hours a month in public means about 5.7 fast-charge stops a month, or about 68 stops a year, if each stop replaces 70 percent of a 90 kWh pack. At 1 hour per stop — our assumption, covering the drive there, the wait and the drive back, and not a measurement — that is about 68 hours a year.
Charging at home costs time too, and a comparison showing zero on our own side is one a reader stops trusting. Plugging in and unplugging is about twenty seconds a night, which over a full year of nights is about 2 hours. It is a small number and it is a real one, and it belongs on the same page as the large one.
The stops-per-month number is the one worth arguing with, because it is the one you can check against your own habit. Three inputs produce it: how far you drive, how big the pack is, and how much of the pack a stop puts back.
Both fields are drawn at the same square size, so what you are looking at is the ratio and not a scale trick.
| Where you charge | Fast-charge stops a month | Hours a year |
|---|---|---|
| At home, on Level 2 | None | 2 hr |
| Public DC fast charging | 5.7 | 68 hr |
See what a Level 2 install costs at your address
If the arithmetic above says you want the faster circuit, what it costs depends on where the car parks, how far that is from the panel, and what the panel has left. A few questions gets you an installed-price range for your address instead of a national one.
When Level 2 is worth it anyway
Four conditions sit outside the arithmetic above, and any one of them can flip the answer for a household the numbers say is fine.
Cold is the strongest of them. In a cold climate a Level 1 supply can spend most of its output on something other than range: the pack has to be held in a temperature window to accept charge at all, and preconditioning the cabin before you leave draws from the wall while the car is plugged in. Both are close to the whole of what a household circuit can deliver, so treat the miles-added figure above as a summer number and discount it hard if the car parks outside.
Second is variance rather than volume. Almost nobody is caught out by their typical Tuesday. They are caught out by the Saturday that put a long trip on the car followed by a Monday that needs it again, and a slow circuit does not recover from a long day inside one night. If your driving is flat, the average is the answer. If it is spiky, the spikes are what you would be buying a faster circuit for.
Third is the circuit itself, which is the section below. Fourth is the shape of the job: if you need an electrician to run a dedicated circuit to the parking spot regardless, the expensive part is the trip and the trench, not the voltage. Paying for a 240-volt circuit instead of a 120-volt one is a small increment on a job you were already having done.
A plug-in hybrid inverts most of this. The battery is small enough that a household outlet fills it overnight comfortably, and the worst case when it does not is that the car burns some fuel — which is a mild consequence, and the reason Level 2 stays genuinely optional for most plug-in hybrid owners.
The circuit you plug into is a real constraint
A Level 1 cordset drawing 12 amps continuously on a 15-amp circuit is using its entire continuous-load allowance. Electrical code treats EV charging as a continuous load, and a 15-amp circuit is rated for 12 amps of it. There is nothing left over.
In a lot of garages that circuit is not dedicated. It also runs the freezer, the door opener, a workbench outlet and sometimes an outdoor receptacle. Adding a car to it produces nuisance trips at best and a warm receptacle at worst, and a warm receptacle in a garage is the failure people find after it has already scorched.
Three things to check before deciding Level 1 is your answer. Is anything else on that circuit? Is the receptacle in good condition, or is it a fifty-year-old backstab device? And does the cordset reach without an extension cord, which manufacturers uniformly tell you not to use?
If the answer is that you need a dedicated circuit run to the garage either way, the calculation changes — see the last of the four conditions above.
How many miles per hour does Level 1 charging add?
About 3 to 5 miles of range an hour from a standard 120-volt outlet. The cordset that came with the car draws 12 amps continuously, which is 1.44 kilowatts arriving at the car, and the range that turns into depends on the vehicle. Cold weather and cabin preconditioning both cut it, sometimes to almost nothing on a hard winter night.
Can I leave an EV on Level 1 permanently?
Yes, if the circuit is sound and dedicated. Nothing about slow charging harms the battery — if anything it is gentler than fast charging. The constraint is the circuit and the receptacle, not the car. Have an electrician look at the receptacle if it is old, and never run the cordset through an extension cord.
What daily mileage justifies a Level 2 charger?
There is no fixed threshold, only the point where your driving passes what a 120-volt outlet puts back overnight. With a 90 kWh battery at the EPA median efficiency and ten hours parked, that boundary sits near 37 miles a day. Drive less and Level 1 keeps pace indefinitely; drive more and the shortfall compounds week over week.
How much does public DC fast charging cost per kWh?
There is no national figure to give you. Electrify America's own pricing page says the price depends on the location, your plan and the energy delivered, and is shown in the app or on the charger. ChargePoint says each station owner sets their own price. The US Department of Energy's fuel price report leaves electricity out entirely. Read the price on the charger you actually use.
Does Level 1 charging cost more in electricity?
Slightly, per mile. Charging at low power is a little less efficient because the car's own systems draw a fixed overhead for the whole session, and a longer session means more of it. The difference is small compared with the difference between your utility's on-peak and off-peak rates.
Is there a tax credit that offsets a Level 2 charger?
Not a federal one. The Section 30C credit does not apply to property placed in service after June 30, 2026. Whatever your electric utility offers is the entire incentive picture on a home charger now, and it varies enormously by utility.
- AFDC — Average Annual Vehicle Miles Travelled by Major Vehicle Category (11,026 miles a year for cars). Read 2026-09-04
- EPA — Comparison: Your Car vs. an Electric Vehicle (39 kWh per 100 miles, Model Year 2025 median). Read 2026-09-04
- EIA — Electric Power Monthly, Table 5.3, US residential average, June 2026 data. Read 2026-09-04
- IEA — Global EV Outlook 2026, electric vehicle batteries (average US battery-electric car battery size, 2025 sales). Read 2026-09-04
- Electrify America — pricing (states that price is set by location, plan and energy delivered, and shown in the app or at the charger). Read 2026-09-04
- ChargePoint — pricing policies and fees (states that stations are independently owned and each owner sets the price). Read 2026-09-04
- US DOE Alternative Fuels Data Center — fuel prices (the Alternative Fuel Price Report omits electricity). Read 2026-09-04
- IRS — Alternative Fuel Vehicle Refueling Property Credit (Section 30C status)
Every figure on this page is arithmetic on the values in the worksheet, done in your browser. Nothing you type is stored or sent anywhere. Each default carries its own mark: sourced means somebody here read it off the publisher's page on the date shown beside it, and assumption means we chose it and are telling you so. Three figures are assumptions rather than facts: how long the car sits at home overnight, how much of the pack a fast-charge stop replaces, and what a public charging stop costs you in time. What this page does not model: time-of-use electricity rates, the extra losses of DC fast charging, the charge taper near the top of a pack, and any mix of home and public charging — it compares two whole worlds, and most people live between them. It also does not put a dollar value on your time unless you type one in, because hours are the honest unit and any wage we picked would be wrong for nearly everyone reading.