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Calcimator

EV Home Charging Cost Calculator

Calculate daily, monthly, and annual EV home charging costs. Compare to equivalent gas prices and see the impact on your electric bill.

Inputs

mi
mi/kWh
$/kWh
%

Results

Monthly Cost

$47.35

≈ 9 cups of coffee

Annual Cost

$567.72

≈ 6 nice dinners out

Daily kWh from Grid11.11 kWh
Equivalent Gas Price$1.33
Monthly kWh Added338 kWh
How to Use This Calculator
  1. Enter your average Daily Miles Driven.
  2. Set the EV Efficiency in mi/kWh (check your vehicle specs or onboard display).
  3. Enter your home Electricity Rate in $/kWh — find this on your utility bill.
  4. Set Charging Efficiency (%) — Level 2 chargers are typically 90% efficient.
  5. Review Daily kWh from Grid, Monthly Cost, Annual Cost, and the Equivalent Gas Price for comparison.

How the result changes with EV Efficiency

EV EfficiencyMonthly CostAnnual Cost
1.6$103.60$1,242.24
3.1$53.44$640.79
4.9$33.84$405.73
6.4$25.91$310.69

What each input means

Daily Miles Driven
Average miles driven per day.
EV Efficiency
Your EV's efficiency rating in miles per kWh.
Electricity Rate
Your utility rate per kWh. Check your bill; consider off-peak EV rates.
Charging Efficiency
Level 2 is ~90% efficient; Level 1 is ~85%. Some energy is lost as heat.

What each result means

Daily kWh from Grid
Total kWh drawn from the grid including charging losses.
Monthly Cost
Monthly electricity cost for EV charging.
Annual Cost
Yearly electricity cost for EV charging.
Equivalent Gas Price
What gas would cost per gallon at a 30 MPG equivalent.
Monthly kWh Added
Additional kWh on your monthly electricity bill.

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    4 parameters
    Daily Miles Driven = 35, EV Efficiency = 3.5, Electricity Rate = 0.14, Charging Efficiency = 90 = 4 input(s) provided
  2. Calculate Monthly Cost
    Monthly Cost
    47.35 = $47.35
  3. Calculate Annual Cost
    Annual Cost
    567.72 = $567.72
  4. Calculate Daily kWh from Grid
    Daily kWh from Grid
    11.11 = 11.11
  5. Calculate Equivalent Gas Price
    Equivalent Gas Price
    1.33 = $1.33

Engine last updated . Checked against 1 independently-derived test — how we verify calculators.

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