Multiply energy used by your electricity rate to see session cost and cost per mile.
Overview
EV running cost is mostly electricity. Session cost equals kilowatt-hours delivered times your rate per kWh—home rates differ from public DC fast charging.
Enter kWh and rate to get charging cost. If you also enter miles driven on that energy, the calculator reports cost per mile.
Compare home overnight charging with public rates to decide when it is worth waiting for cheaper energy.
Steps
From the charger session or vehicle display.
Home tariff or public charging price.
Distance covered on that charge.
Review session cost and cost per mile.
Rerun with peak vs off-peak rates.
Math
cost = kWh × ratePerKwh; costPerMile = cost / miles
Energy times unit price yields cost. Dividing by miles produces a per-mile figure.
Worked cases
40×0.14=$5.60; 5.60/120≈$0.047/mi
About $5.60 total, ~4.7¢ per mile.
35×0.40=$14.00
About $14.00 for the session.
10×0.16=$1.60; 1.60/30≈$0.053/mi
About $1.60, ~5.3¢ per mile.
Why use this
Questions