Transport & cars · 057

Home EV charging cost

What does charging cost under your tariff?

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Quick answer

What does the Home EV charging cost calculate?

What does charging cost under your tariff? This calculator uses distance driven per month, vehicle efficiency, electricity price, and charging loss to estimate home charging cost immediately in your browser.

With the values currently entered, the result is $66.53 — per month. It also shows grid energy, cost / 100 mi, and annual charging.

How to use the Home EV charging cost

Replace the example values with your own numbers.
Review the result and supporting figures as they update automatically.
Check the formula and assumptions before using the estimate for a decision.

Inputs used

Distance driven per month — entered in km
Vehicle efficiency — entered in kWh / 100 km
Electricity price — entered in / kWh
Charging loss — entered in %

Home EV charging cost formula

Distance × efficiency × charging loss × electricity price

Assumptions

All charging happens at the entered rate.
Fixed charger and demand fees are excluded.

Practical guide

Home EV charging cost example and edge cases

What does charging cost under your tariff? Let's use a concrete example, then look at the assumptions that can move the answer.

Example: A practical home ev charging cost scenario

For this example, use distance driven per month of 1,200 km, vehicle efficiency of 18 kWh / 100 km, electricity price of 0.28 / kWh, and charging loss of 10 %. These are starting values, so replace them with numbers that match your situation.

Distance driven per month: 1,200 km
Vehicle efficiency: 18 kWh / 100 km
Electricity price: 0.28 / kWh
Charging loss: 10 %

Calculated result$66.53per month

Start with per month. Then check grid energy, cost / 100 mi, and annual charging to understand what sits behind the main result.

Example results use the default display profile. The calculator above follows your selected country and units.

How to read the result

Read the main result first. The supporting figures for grid energy, cost / 100 mi, and annual charging explain how the estimate is built.
The method is Distance × efficiency × charging loss × electricity price. Keep the units consistent and use values from the same time period.

Edge cases worth checking

When distance driven per month is unusual

All charging happens at the entered rate. Double-check this input before relying on the result.

When charging loss is uncertain

Fixed charger and demand fees are excluded. Run a lower and higher value to see a useful range.

What changes the result most

Distance driven per month

Measure distance driven per month with the same unit shown beside the input. Convert first if your source uses another unit.

Vehicle efficiency

Measure vehicle efficiency with the same unit shown beside the input. Convert first if your source uses another unit.

Electricity price

Use a current amount for electricity price. Include fees or recurring costs that belong in the same figure.

Try a different scenario

Small changes show whether the answer is stable or sensitive.

Distance driven per month: 10% lower

1,080 km

$59.88per month

Distance driven per month: 10% higher

1,320 km

$73.18per month

Vehicle efficiency: 10% higher

20 kWh / 100 km

$73.92per month

Common mistakes

Check distance driven per month

All charging happens at the entered rate. Make sure this matches the number you enter.

Keep charging loss consistent

Fixed charger and demand fees are excluded. Use the same units and time period throughout the calculation.

Do not rely on one home ev charging cost scenario

Run a cautious case and an optimistic case. The range is often more useful than one exact-looking number.

Use this result well

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