Free EV home charger payback calculator 2026: enter charger cost, weekly EV energy use (kWh), and electricity rate to estimate annual savings and payback.
Formula
const annual_savings = (inputs.public_rate-inputs.home_rate) * inputs.weekly_kwh * 52 - inputs.annual_maintenance; const payback_years = annual_savings>0 ? inputs.installation_cost/annual_savings : 0; const five_year_net = annual_savings*5-inputs.installation_cost; return { annual_savings: Math.round(annual_savings), payback_years: Math.round(payback_years*10)/10, five_year_net: Math.round(five_year_net) };Installed Charger Cost
1,400
Weekly EV Energy Use (kWh)
55
Home Electricity Rate per kWh
0.18
Public Charging Rate per kWh
0.48
Annual Maintenance
40
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This EV home charger payback calculator estimates annual savings, payback period, and 5-year net value from installed charger cost, weekly EV kWh use, home electricity rate, public charging rate, and maintenance. Use it to compare charger installation quotes before booking an electrician.
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The estimate combines Installed Charger Cost, Weekly EV Energy Use (kWh), Home Electricity Rate per kWh and returns Annual Savings, Payback Period, 5-Year Net Value.
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