PetrolCalculator

EV calculator

EV Home Charging Monthly Cost

Estimate the monthly electricity cost of charging an EV at home.

Use this calculator

Enter monthly mileage and your home tariff.

What your result means

This is a monthly household-budget estimate for EV charging only. Monthly miles and efficiency determine kWh; the home p/kWh rate determines the extra charging cost.

Worked example

600 monthly miles at 3.5 miles/kWh and 25p/kWh:

Monthly electricity
171.43 kWh
Monthly cost
£42.86
Annualised cost
£514.29

This is not a whole-house electricity-bill forecast.

Formula

monthly cost=monthly milesmiles/kWh×p/kWh100\text{monthly cost}=\frac{\text{monthly miles}}{\text{miles/kWh}}\times\frac{\text{p/kWh}}{100}

Monthly mileage sensitivity at 3.5 miles/kWh and 25p/kWh

Monthly milesMonthly cost
300£21.43
500£35.71
600£42.86
800£57.14
1,000£71.43
1,200£85.71

Using the result

Use your expected home rate and mileage. Off-peak charging and seasonal efficiency can materially change the result.

Assumptions and limitations

  • Charging losses and standing charges are excluded.

Helpful questions

Does this include my household bill?

The result changes directly with the values entered; real-world driving and charging conditions can differ.

What if I use off-peak charging?

The result changes directly with the values entered; real-world driving and charging conditions can differ.

Why can winter cost more?

The result changes directly with the values entered; real-world driving and charging conditions can differ.

Is this annual charging cost?

The result changes directly with the values entered; real-world driving and charging conditions can differ.

Does it include public charging?

The result changes directly with the values entered; real-world driving and charging conditions can differ.

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