EV Charging Energy Cost Calculator
Estimate grid energy and electricity cost per charging session, annually, and per mile from user-entered charging and driving data.
Enter project values
Charging energy cost
About this calculator
Estimate grid energy and electricity cost per charging session, annually, and per mile from user-entered charging and driving data.
Uses the entered average efficiency and rate. It does not model time-of-use periods, fixed utility charges, public charging fees, charge taper, or vehicle-specific charging curves.
Method and assumptions
Grid energy per session = energy added to the battery ÷ charging efficiency. Session cost = grid energy × electricity rate. Annual cost multiplies session cost by sessions per year; cost per mile divides session cost by miles driven per session.
Results use only the user-entered prices, rates, equipment power, efficiencies, and operating schedule. They are estimates for comparison, not a bid, guarantee, or project approval.
FAQs
Are the prices or energy rates prefilled market averages?
No. Enter current project quotes, your applicable electricity rate, maintenance estimates, and operating assumptions.
Does this prove the alternatives are technically equivalent?
No. Check electrical ratings, conductor suitability, equipment listings, photometric results, and manufacturer instructions separately.
Sources
Use current supplier quotations, utility tariff information, equipment data, and project operating records for the values entered.