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Расчет стоимости зарядки электромобилей

ДанныеРазработчикМатематика

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ВХОД

Автоматический процесс

Battery Capacity (kWh) *

Start Charge (%) *

Target Charge (%) *

Home Rate ($/kWh) *

Набор ставок

Public Rate ($/kWh)

Used for the home vs public charging comparison.

Vehicle Efficiency *

Distance traveled per kWh consumed.

Distance Unit

Avg Daily Distance

Used for monthly cost estimate.

ВЫХОД

Клиентская сторона

Метрическая	Home Charging	Public Charging
Energy Needed	-	-
Total Cost	-	-
Cost per km	-	-
Monthly Cost (est.)	-	-

Estimated Charging Time

Charger Type	Мощность	Est. Time
Level 1 (Standard Outlet)	1.4 kW	-
Level 2 (Home / Public AC)	7 kW	-
DC Fast Charging	50 kW	-

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Гид

Расчет стоимости зарядки электромобилей

Estimate exactly how much your next electric vehicle charge will cost — at home or at a public station — and how long it will take on a Level 1 outlet, a Level 2 wallbox, or a DC fast charger. Punch in your battery size, current state of charge, target percentage, electricity rate, and vehicle efficiency, and you get the energy you need to add, the bill, the cost per kilometer or mile, a monthly running-cost estimate, and a charge-time table for each charger class. Rate presets for the US, UK, EU, Australia, Canada, and Norway are built in so you can sanity-check a road-trip plan in seconds.

Как использовать

Enter your battery capacity in kWh (e.g. 75 for a typical mid-size EV).
Set the starting state of charge (%) and the target state of charge (%) for this session.
Type your home electricity rate per kWh, or pick a regional preset.
Optionally set a public charging rate to compare against home charging.
Adjust the vehicle efficiency (km or miles per kWh) and the average daily distance you drive.
Switch between kilometers and miles using the distance unit dropdown.
The summary table, charge-time table, and monthly cost estimate update automatically.

Возможности

Energy needed – kWh required to move from your start % to your target %.
Home vs public cost – Side-by-side bill for the same session at two different rates.
Cost per km / per mile – Real running cost based on your vehicle efficiency.
Monthly cost estimate – Projects spend from your average daily distance.
Charge time table – Level 1 (1.4 kW), Level 2 (7 kW), and DC fast (50 kW with realistic taper) estimates.
Rate presets – US, UK, EU, Australia, Canada, and Norway averages one click away.
– вывод и проверка обновляются в реальном времени при вводе или изменении параметров. – Results recompute automatically as you tweak any input.
Приватность на первом месте – All math runs in your browser; nothing is sent to a server.

 Часто задаваемые вопросы

What is the difference between Level 1, Level 2, and DC fast charging?

Level 1 charging plugs into a standard household outlet and delivers around 1.4 kW, which is slow but works overnight for short commutes. Level 2 charging uses a 240V circuit or a public AC station and typically supplies 6–11 kW, fully replenishing most EVs overnight. DC fast charging bypasses the car's onboard charger and feeds high-voltage direct current straight to the battery at 50–350 kW, adding hundreds of kilometers in 20–40 minutes but at a higher price per kWh.
Why does a battery rarely charge at the charger's full advertised speed?

Battery chemistry limits how fast lithium-ion cells can accept current without overheating or degrading. Charging typically peaks between 10–60% state of charge and then tapers down as the battery fills, especially above 80%. Cold temperatures, hot temperatures, and a long history of fast-charging sessions all reduce the peak rate further, which is why real-world DC fast charging sessions are usually planned to stop at 80%.
What is a kilowatt-hour and how does it relate to driving range?

A kilowatt-hour (kWh) is the energy used by a 1,000-watt device running for one hour. EV batteries are sized in kWh — a 75 kWh pack stores roughly the same energy as 2.3 liters of gasoline. Range depends on vehicle efficiency, usually expressed in km per kWh or miles per kWh: a car that does 6 km/kWh will travel about 450 km on a full 75 kWh charge under ideal conditions.
Why is public DC fast charging often two to three times more expensive than charging at home?

Public DC fast chargers cost hundreds of thousands of dollars to install, draw expensive demand-charged grid power, and need ongoing maintenance and uptime monitoring. Operators have to recover that capital, pay for the land, and add a margin, so per-kWh prices on the road usually sit well above residential tariffs. Home charging, by contrast, uses the same off-peak power that already runs your refrigerator.
How does charging from 0 to 100% compare to charging from 20 to 80% in real life?

The bottom 20% and the top 20% of a lithium-ion pack charge much more slowly than the middle. Going from 20 to 80% can be roughly twice as fast per kWh as a full 0–100% session on a DC fast charger, because the curve drops sharply above 80%. Daily driving from 20–80% also reduces calendar aging of the battery, which is why most EVs default to an 80% charging cap.