The car sets the speed, not the wall
The onboard AC charger in the vehicle is a hard ceiling. Buying amperage a car cannot accept is the most common way people overspend on a home install, and it is why this site has a page for each vehicle.
About HomeChargerCalc
HomeChargerCalc.com exists to answer one question properly: what does it actually take, and actually cost, to charge an electric car at home. Not which charger has the nicest app. What size circuit your car needs, whether your panel can carry it, what the electrician will charge, and what the whole job comes to with nothing left out.
Calculators
11
Charge time, breaker size, panel load, wire gauge, cost and payback.
Chargers
21
Level 2 charger roundups at three budgets, plus outlets, breakers and adapters.
Buildouts
3
Three complete home charging installs, every line item priced and linked.
Install Guides
31
Permits, load calculations, panel work, conduit, placement and labour costs.
Why this site exists
Home EV charging is unusually badly served by the internet, and for a specific reason. It sits across three subjects that normally have separate audiences: electric cars, residential electrical work, and household budgeting. Automotive coverage explains onboard chargers and stops at the wall. Electrical coverage explains conductor sizing and assumes you already know what a charger needs. Product review coverage ranks boxes by app quality and never mentions that the box is fifteen percent of what you will spend.
The result is that a normal person buying their first electric car finds a great deal of writing and still cannot answer the questions that matter. Does my car actually benefit from a 48 amp circuit? Will my panel take it? Is $1,800 a fair quote for a 40 foot run? What do I lose if I go one size smaller? Those are the questions this site is built around, and they are why there is a page for each vehicle, a panel load calculator, and complete buildouts where every line item including labour is priced.
How the site is put together
There are 124 content pages across 7 sections. The unusual thing about them is structural: the ampacity tables, vehicle specifications, electricity rates and cost ranges live in shared data files that every page reads from. The breaker chart, the wire gauge calculator and the copper sizing figure quoted halfway down a review are all the same number from the same place.
That sounds like an implementation detail and it is actually an editorial policy. Reference sites drift: a figure gets updated on one page and not on the other four, and eventually the site contradicts itself and nobody notices. Here that is not possible for any figure that comes from the shared data, which is most of them.
What we believe about home charging
Labour is usually the largest line
On most installs, labour, permit and inspection are 55 to 65 percent of the total. Every buildout here states that share explicitly, because a parts list that hides it is misleading about the only number that matters.
One data file, many pages
Ampacity tables, vehicle specifications, rates and cost ranges live in shared data files that every page reads. A figure quoted on a chart cannot contradict the same figure in a calculator, because they are the same figure.
Say what we do not know
We do not test hardware. Onboard charger ratings vary by trim and model year. Code varies by jurisdiction. Every one of those limits is stated on the pages it affects rather than buried here.
How products are chosen
We do not test hardware. There is no laboratory, no instrumented garage and no sample equipment behind any page on this site, and we never write as though there is. Every recommendation is researched from published manufacturer specifications, listed safety certifications, published ratings, and verified owner reviews read in volume. Saying so plainly on every page is a deliberate policy, because on a subject where a wrong recommendation is an electrical hazard rather than a disappointing purchase, a fabricated testing claim would be indefensible.
Within that constraint, the filters are consistent across every roundup on the site.
FILT-01
Certification first
A UL 2594 listing, or an ETL listing to that standard, is the baseline for any device switching 240 volts at 40 amps or more for hours at a time. On plug-in units the cord and cord cap are part of the listed assembly. Nothing uncertified appears as a recommendation on this site at any price.
FILT-02
Continuous rating honesty
Some listings advertise a peak figure rather than the continuous output a circuit is sized against. We use the continuous rating, and where a listing is ambiguous we say so rather than quoting the larger number.
FILT-03
Failure patterns in owner reviews
Reviews are read in volume for recurring failure modes rather than for star ratings. Connector overheating, water ingress in units sold as outdoor rated, cables that go rigid in the cold and cloud services being discontinued are all disqualifying, regardless of the average score.
FILT-04
Whole-job cost, not box price
Every recommendation is priced against the circuit it needs. A charger that saves a hundred dollars and requires a larger circuit is not cheaper, and a build guide that leaves out labour is describing a fraction of the invoice.
Every ASIN referenced on this site was confirmed against the live product listing before it was attached to a product name, and the verified product title is recorded in the source alongside it. That is a response to a specific failure mode: automated product matching returns nearest matches rather than exact ones, and on a site where products differ by amperage and connector type, a mismatched link is an electrically wrong recommendation rather than a cosmetic error.
How this site makes money
Affiliate commissions, principally through the Amazon Associates programme. When you follow a product link here and buy something, we may earn a commission at no additional cost to you. That is the entire business model and it is worth being blunt about the incentive it creates: a site paid on purchases has an obvious reason to recommend more expensive hardware.
The way we handle that is to be consistent about where the money actually goes in this project. On a typical installation the charger is fifteen to twenty five percent of what you spend and the labour is more than half, and a good part of the advice here points at spending less on hardware: buy the smaller circuit if your car caps at 6.6 kW, do not pay for 80 amps, check whether an existing receptacle is usable before planning anything, and consider load management before a service upgrade. Full detail is in the affiliate disclosure.
Safety comes before everything else here
A home EV charging circuit is licensed work. Nothing on this site is instructions for performing it, nothing here is a design specification, and no calculator output is certification of anything. Code varies by jurisdiction, a permit and an inspection are normally required, and a licensed electrician must size and install the circuit. Our full position, including the failure modes that make this a safety subject rather than a code technicality, is on the electrical safety policy page.
Corrections
If a figure here is wrong, we want to know, and conductor sizes, breaker sizes, ampacity values and code statements go to the top of the queue. Write to [email protected] with the page and the figure. If you work as an electrician or an inspector, please say so, because that context helps us act faster.
Where to start
If you have just ordered a car, start with your vehicle's page to find the circuit it actually needs, then the panel load calculator to see whether your service can carry it. If you already know the circuit, the buildouts price the whole job line by line. If you are comparing quotes, the installation cost chart and what electricians charge are the two pages to read first.