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Level 1 or Level 2 EV charging, from your miles

A 48 A charger is a product. Overnight miles are a planning question. This page uses about 4 miles per hour on Level 1 and about 25 miles per hour on a 32 A Level 2 as placeholders, then asks whether 240 V is already at the parking spot. It will not pick a SKU.

4 vs 25 miles per hour, planning placeholders Level 1 at about 4 miles/hour, Level 2 at about 25 miles/hour on a 32 A circuit. Not the car onboard charger. 240 V work is licensed. HyreElectrical does not sell chargers.

Type daily miles, hours the car can actually sit on the plug, and whether 240 V already exists at the parking spot.

Ten hours covers about 40 miles on Level 1 and about 250 miles on a 32 A Level 2 placeholder.

If daily miles fit overnight on 120 V, a dedicated Level 1 circuit may be the whole job.

If they do not, the conversation is a 240 V circuit, plus the load and panel-space tools. Not a charger model. Live work is not DIY.

Miles, hours, 240 V or not

Not a model and not a price. Nothing is emailed.

A commuting day, not a road-trip day. Road trips are not what home charging is for.

Clock hours at home, not "it is in the garage all night" if you arrive late.

— The conversation
— Level 1 ballpark
— Level 2 ballpark
— What this is not

What this assumed —

About 4 miles/hour on Level 1 and about 25 miles/hour on a 32 A Level 2 are planning placeholders, not a vehicle onboard charger. Not a SKU. 240 V work is licensed. Live work is not DIY. HyreElectrical does not sell chargers.

Charging at home is not refuelling. It is topping up a small nightly deficit

Every instinct carried over from petrol is wrong here, and the wrong instinct is what sells the larger installation.

A petrol car empties, then refills completely. You arrive near empty, you leave full, and the whole event takes five minutes because it has to — you are standing there. The size of the tank and the speed of the pump both matter enormously.

A car at home does the opposite. It arrives having used whatever the day required, sits for twelve hours or so, and leaves having replaced that. It is never emptied and never fully refilled from a low state. The relevant quantity is the daily deficit, not the capacity of the battery.

So the arithmetic is a subtraction, not a division. How far do you drive on an ordinary day, and how many hours is the car parked at home?

DOE puts Level 1 at about 5 miles of range per hour of charging and Level 2 at about 25.

Twelve hours on Level 1 is therefore roughly 60 miles replaced overnight — which is more than the average American day’s driving.

Which produces a genuinely counter-intuitive result. A household whose cars are parked overnight and whose daily driving is ordinary may need no installation at all. That conclusion is available to us because we sell nothing; it is not available to a page that earns a commission on the equipment.

The cases where Level 2 genuinely earns its place are specific and easy to recognize: long daily mileage, a short parking window, two cars sharing one point, a plug-in hybrid with a small battery that benefits from being full for every short trip, cold weather that reduces effective range, or intolerance of thinking about it.

"Everybody gets Level 2" is not one of them.

And one caveat we will not skip. Level 1 on an unsuitable or heavily loaded circuit, on an extension lead, or on aged wiring is not a free option.

It is a small continuous load sitting on a general-purpose circuit for hours, which is precisely the condition the heat mechanism on the safety page describes. If you intend to rely on it, have the circuit looked at.

The four numbers this decision runs on

5 mi/hrrange added by Level 1 at 120 VUS Department of Energy, Alternative Fuels Data Center
25 mi/hrrange added by Level 2 at 240 VUS Department of Energy, Alternative Fuels Data Center
30 kWhper 100 miles on one published fuel-economy label — the figure to take from your own carfueleconomy.gov label data
18.34¢/kWhUS average residential electricity price, June 2026US Energy Information Administration

The charging rates are DOE approximations published as approximations. The efficiency figure is one vehicle’s label: One vehicle, cited as a worked example rather than as a fleet average. Every model has its own label figure and the label figure is the number to type into a running-cost calculation, not a rule of thumb.

What each level actually replaces overnight

The same two DOE figures, plotted against hours parked. The crossing point with your own daily mileage is the whole decision.

Miles of range replaced against hours plugged in0741482232973712468101214Miles replacedHours plugged inLevel 1Level 2HyreElectrical chart of DOE’s published approximate rates. Real rates vary by vehicle, by equipment and with temperature; theseare the published approximations, drawn straight.
Drawn from DOE’s two published rates. Find your ordinary daily mileage on the vertical axis and read across: the hours you need are on the bottom.US Department of Energy, Alternative Fuels Data Center, Electric Vehicle Charging Stations.

Level 1, in DOE’s words. “Level 1 equipment provides charging through a 120 volt (V) AC plug — approximately 5 miles of range per 1 hour of charging.”

Level 2, in DOE’s words. “Level 2 equipment offers charging through 240 V (typical in residential applications) or 208 V (typical in commercial applications) — approximately 25 miles of range per 1 hour of charging.”

Read the chart against your own week, not your worst day. The temptation is to size for the longest journey you make in a year. But a long journey usually involves charging away from home anyway, and it does not recur nightly. What recurs nightly is the commute.

The parking window is the second variable and it is often the binding one. A car home from 7pm to 7am has twelve hours.

A car that leaves at 5am and returns at 9pm has eight, and a shift pattern can cut it to four.

Halving the hours has exactly the same effect as halving the charging rate.

And two cars on one point changes the shape entirely. Two vehicles sharing a single overnight window is the strongest ordinary argument for Level 2 — stronger than any single driver’s mileage — because the same hours now have to serve two deficits.

Level 1 and Level 2, compared on the things that actually differ

Not a feature grid. These are the six differences that change a household decision, and the last column is what people find out afterwards.

Level 1Level 2What people discover later
Supply120 V, an ordinary receptacle240 V, a dedicated circuitThe Level 2 job is the circuit, not the box on the wall. That is where the money and the delay are.
Range added per hourAbout 5 miles (DOE)About 25 miles (DOE)Five times the rate does not mean five times as useful. Above the point where the car is full by morning, extra speed buys nothing at all.
InstallationUsually none, if a suitable dedicated receptacle already existsBreaker, conductor, route, terminations, often a permit and an inspectionDistance and finished surfaces drive the price far more than the equipment does.
Effect on the service calculationSmallA continuous load at 125 percent — unless managed under NEC 625.42(A)This is the line that occasionally turns a charger purchase into a panel conversation, and the load-management allowance is the thing to ask about before accepting that.
Cold weatherStruggles: preconditioning and battery heating consume a meaningful share of a slow supplyAbsorbs it comfortablyThe winter argument is real and is the one genuine technical reason a household in a cold climate may want headroom it does not need in July.
ReversibilityComplete — it is a plugThe circuit stays with the house; the equipment is often swappableThe circuit is the durable asset. If the wall or trench is open anyway, building it generously once is the cheap moment.

The charging rates are DOE’s. The comparisons and the last column are ours. We name no products and take no money from anybody who makes them. HyreElectrical holds no dataset of bids, invoices, inspections or jobs. No figure on this site is our own measurement of the market.

What charging actually costs, worked from published figures

The running-cost figures below are our arithmetic on two sourced numbers, shown so you can substitute your own and get an answer about your household rather than about an average one.

Annual charging cost by state, relative to the US average0Hawaii1,238California590Massachusetts406New York401Pennsylvania122Illinois56US average0Georgia-71Texas-86Arizona-114Florida-117Washington-123Idaho-143North Dakota-152Louisiana-175Utah-179HyreElectrical arithmetic on EIA residential prices for June 2026 and one published vehicle label figure. Not ameasurement of anybody’s bill.
Real prices, our arithmetic. The spread is the point: the same car and the same mileage differ by hundreds of dollars a year purely by state.US Energy Information Administration, Electric Power Monthly, Table 5.6.A — Average Price of Electricity to Ultimate Customers by End-Use Sector, June 2026; vehicle label data from US Department of Energy / US EPA, fueleconomy.gov.

The worked example. 12,000 miles a year at 30 kWh per 100 miles is 3,600 kWh. At the US average residential price of 18.34¢/kWh, that is about $660 a year. This is a HyreElectrical calculation on two published figures, not a published figure of its own.

The same driving elsewhere. At Hawaii’s 52.72¢/kWh it is about $1,898. At Utah’s 13.37¢/kWh it is about $481. Nothing about the car changed.

Two corrections to make it yours. First, use your own car’s label figure rather than the example one — every model publishes kWh per 100 miles and they differ substantially. Second, use the rate on your own bill, including any overnight tariff, because a state average conceals large differences between utilities and time-of-use plans.

And a third thing this arithmetic ignores. Charging losses. Not all the energy drawn from the wall reaches the battery, and the fraction lost is larger on a slow supply in cold weather.

We have not applied a loss factor because we did not verify one, and an unverified fudge factor is worse than a stated omission.

What this has to do with choosing a level. Very little, and that is the finding. The energy costs the same whether it arrives over four hours or twelve.

Level 2 buys time, not cheaper miles — unless it is what lets you fit charging inside an off-peak window, which for a household on a time-of-use tariff can be the whole argument.

The decision, as six questions

In order. Most households can stop after the third.

  • How many miles do you drive on an ordinary day?

    Not your longest trip of the year. The recurring one. Read it off the car rather than estimating, because estimates in this area run consistently high.

  • How many hours is the car parked where it could be plugged in?

    At DOE’s figure of about 5 miles per hour, twelve hours on Level 1 replaces roughly 60 miles. Compare that with your answer to the first question.

  • Is there already a suitable dedicated receptacle where the car parks?

    If the first two answers say Level 1 is sufficient and a suitable circuit exists, you are finished and the correct spend is zero. Have the circuit checked rather than assuming it.

  • Is there a second vehicle, a short parking window, or a cold winter?

    Any one of these is a genuine argument for Level 2. Two of them together make it straightforward.

  • What does your electricity tariff do overnight?

    If your rate is much lower in a narrow window, charging speed becomes an economic question rather than a convenience one, and that is one of the few cases where a faster charger genuinely reduces cost.

  • And only then: what does the circuit cost, and does the panel have room?

    The equipment is the last and smallest decision. The circuit, the route and the panel are the job.

  • Buying the fastest available charger by default

    A larger charger is a larger circuit, a larger calculated load, a higher chance of a panel conversation, and frequently no earlier finish time overnight. Bigger is not free here; it is simply bigger.

What this tool cannot do

The selector does not know your car. Efficiency, onboard charger capacity and cold-weather behavior vary widely, and a vehicle whose onboard charger accepts less than the wall unit can supply will not charge faster for having a bigger one.

It does not model temperature. Cold reduces effective range and diverts energy into conditioning the battery. We did not verify a factor for this and will not invent one.

It does not model charging losses. The running-cost arithmetic above is energy at the meter against label efficiency, with no loss factor applied, and it says so.

It names no product. No brands, no models, no affiliate links. We take no money from anybody who makes or installs this equipment, which is the reason this page is able to conclude that you may not need any.

It does not size a circuit or price an installation. There is no national average price for a panel upgrade, a service change, an EVSE circuit or a rewire on this site, because we hold no dataset of bids and the figures that circulate in roundups come from lead-generation sites with unpublished methods.

The circuit estimator handles the first of those; nothing on this site handles the second.

And it is not an installation guide. Live electrical work is not a do-it-yourself subject here. Nothing on this site instructs a reader to open, probe or modify energized equipment. HyreElectrical does not perform, supervise or warrant electrical work, does not open panels, and does not pull permits.

How this calculator works

The calculator multiplies the hours you type by two planning placeholders, then picks a sentence:

Level 1 miles ≈ hours × 4
Level 2 miles ≈ hours × 25   (32 A placeholder)

if daily miles ≤ Level 1 miles and 240 V is not already "yes":
    Level 1 on a dedicated 120 V circuit may cover this
if 240 V is "no" and daily miles > Level 1 miles:
    daily miles exceed overnight Level 1; 240 V is the conversation
else:
    a dedicated 240 V Level 2 circuit is the usual home charging job

On 30 miles/day and 8 hours, Level 1 covers about 32 miles and Level 2 about 200. Thirty sits at the Level 1 edge.

On 80 miles/day and 8 hours with 240 V marked no, Level 1 covers 32 miles and the pick is the 240 V conversation plus the load and panel tools. The placeholders are not your car.

They exist so a 12-mile commute does not automatically become a 48 A wall unit.

What each input means

Inputs on this tool, in the order they appear on the form.
InputWhat it is actually asking
Miles per day Typical weekday miles, the ones home charging has to replace. Not the 400-mile trip twice a year. Those are public DC fast charging.
Hours available Clock hours the car can sit on this plug. Default 8. If you get home at 10 and leave at 6, type 8 only if that is actually true. Overnight is not automatically 12.
240 V at the spot Unknown, yes, or no. "Yes" means a circuit that can actually serve a charger, not a dryer receptacle you hope to share. Unknown is valid and the usual answer.

Worked examples

Including one where the naive answer misleads, which is the example most calculators leave out.

A 30-mile commute and a real 10-hour night

Miles 30, hours 10, 240 V unknown. Level 1 ballpark 40 miles, Level 2 250.

Thirty is under 40 and 240 V is not "yes," so the pick is that Level 1 on a dedicated 120 V circuit may cover this daily mileage if the hours are really available.

Dedicated is doing work in that sentence. A garage receptacle already feeding a freezer is not a charging plan.

Eighty miles a day, no 240 V at the parking spot

Miles 80, hours 8, 240 V no. Level 1 covers 32 miles.

Eighty exceeds that, so the pick is that daily miles exceed an overnight Level 1 fill and a 240 V circuit is the conversation, plus the panel-space and load tools.

The circuit estimator then takes the current (32 A is a 40 A class at 125%). This page does not skip to a SKU in between.

The one where a 48 A wall unit misleads

Twenty miles a day, 12 hours on the plug, no 240 V yet, and a shopping tab open on a 48 A charger because a review site said "Level 2 is required."

Level 1 covers about 48 miles in those hours. The naive answer is a heavy 240 V circuit for a commute Level 1 would have covered.

The other naive answer is treating a 240 V dryer outlet as if it were already a charger circuit. Neither is a SKU this page will name. Hours and miles first, then the circuit tool, then a bid.

What changes the result

Hours move both ballparks linearly. Cutting available time from 10 hours to 5 halves Level 1 from 40 miles to 20. A commute that fit Level 1 at 10 hours does not fit at 5.

The 240 V prompt changes the sentence, not the miles. Marking "yes" when the only 240 V in the garage is a dryer is how people skip the circuit conversation they still need. Mark "yes" only if an electrician has said that circuit can serve the charger.

Miles above the Level 1 ballpark with 240 V marked no is the path into Level 2, the load calculator, and panel space.

Miles far above even the Level 2 placeholder (a 200-mile workday, 8 hours at home) is not a home-charging failure. It is a day that needs a charge away from home.

This tool will not invent a 80 A circuit to pretend otherwise.

Local considerations

Whether a 240 V branch circuit is licensed work, what the permit costs, and whether your utility offers a charging rate or a rebate are local. This page will not publish a 50-state rebate table.

Rebates expire, stack with conditions, and are not a reason to skip the load calculation. Ask the utility and the building department. The circuit still has to exist.

The National Electrical Code is a model code. Continuous-load 125% is the shape used on the circuit estimator. Your jurisdiction adopts an edition. This page does not declare a dryer-outlet adapter illegal in your city and does not recommend one.

When not to use this

Do not use this as a charger model, a price, or a permit. It cannot see the onboard charger, cold-weather derate, a detached garage, or a panel with no spaces.

Do not use it to justify sharing a dryer circuit or installing a 240 V receptacle yourself. 240 V work is licensed. Live work is not DIY.

Do not use it for workplace or public charging, or for DC fast charging. Those are different power levels and different rules.

HyreElectrical does not sell chargers and does not perform electrical work. Matching is still being built. The inquiry form is not a booking.

Related on this site

Questions this calculator answers

Do I need a Level 2 charger at home?
Only if your daily miles will not refill in the hours the car sits on a 120 V circuit. This tool assumes about 4 miles per hour for Level 1 and about 25 for a 32 A Level 2, as planning figures. Short commutes with a long night plugged in often fit Level 1.
What is Level 1 vs Level 2?
Level 1 is 120 V, usually from a dedicated household circuit, and slow. Level 2 is 240 V, typically 16 to 48 A depending on the equipment, and a continuous load. The circuit, not the unit on the wall, is the job; the EV circuit estimator applies the 125% rule to it.
Which charger should I buy?
This page will not name one. Cable length, indoor vs outdoor listing, the car inlet, and whether the unit is smart are product questions. The electrical questions are voltage, current, panel space, and whether the service can carry the continuous load. Buy the equipment after those, not before.
I have a 240 V dryer outlet in the garage. Can I use that?
Not as a casual adapter. A dryer circuit is sized and switched for a dryer, and sharing or splitting it for a charger is a design question for a licensed electrician, under the charger's instructions and your adopted code edition. On this form, 240 V means a circuit that can actually serve the charger.
How many miles per hour does Level 1 add?
About 4 miles per hour is this tool's planning figure, so a 10-hour night adds about 40 miles. The car's onboard charger, its state of charge and cold weather all change that. Type the hours the car is really plugged in: home at 11 p.m. and gone at 6 a.m. is 7 hours.
How many miles per hour on Level 2?
About 25 miles per hour is the placeholder at 32 A. That is a common home current, not a maximum. A 48 A unit on a 60 A class circuit is faster and is a heavier panel conversation. The circuit estimator is where current becomes a breaker class. This page stays in miles vs hours.
Can I install a Level 2 charger myself?
A 240 V branch circuit is licensed work in most jurisdictions. This page will not walk you through live work, landing conductors, or pulling a permit. The person who pulls the permit is the person who should run the circuit.
Does the panel decide more than the charger?
Usually. Spare spaces, spare amps, and the length of the run move the invoice more than the wall unit. Put the current into the load calculator as EVSE amps, count spaces on the panel space checker, and use the electrification tool if a heat pump and an electric dryer are in the same plan.
Is this a price?
No. We do not have a sourced national installation average we can defend, and a SKU price without the circuit is the wrong number anyway. Type bid lines on the project cost tool if you have them.
Does HyreElectrical sell or install chargers?
No. HyreElectrical does not perform electrical work and does not rank charger brands. Matching is still being built. The inquiry form is not a booking.

Sources and methodology

Figures dated 26 August 2026. Last reviewed .

  • Charging electric vehicles at home (U.S. Department of Energy, Alternative Fuels Data Center, retrieved 2026-08-26. Cited for the Level 1 / Level 2 distinction at home. Miles-per-hour figures on this page are planning placeholders, not an AFDC table for your vehicle.)
  • NFPA 70, National Electrical Code (National Fire Protection Association, retrieved 2026-08-26. Continuous-load 125% and branch-circuit rules live in the adopted edition. This page does not reprint them. The circuit estimator uses 125% on the current you enter.)
  • Home electrical safety guidance (Electrical Safety Foundation International, retrieved 2026-08-26. Cited for the standing rule that 240 V work is not a homeowner walkthrough.)

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