Estimate the complete price of a public charging session from energy, session, and time-based fees. Add tax and compare the total with the effective cost per delivered kilowatt-hour and estimated cost per mile.
Adjust the inputs to compare your EV charging or energy scenario.
Subtotal = delivered energy × energy rate + session fee + minutes × time rate. Total = subtotal × (1 + tax or surcharge rate).
This is a planning model; actual EV and charger performance can vary with temperature, equipment, and operating conditions.
The main result summarizes the modeled outcome from your inputs. Secondary results expose the energy, time, capacity, or cost components so you can identify which assumption drives the estimate.
For 45 kWh at $0.42/kWh, a $1 session fee, 40 minutes at $0.10/minute, and 5% tax, the total is $25.10.
| Input | Unit | Example |
|---|---|---|
| Energy delivered | kWh | 45 |
| Energy price | $/kWh | 0.42 |
| Session fee | $ | 1.00 |
| Billable connection time | minutes | 40 |
| Time fee | $/minute | 0.10 |
| Tax or surcharge | % | 5 |
| Vehicle efficiency | kWh/mile | 0.30 |
The energy, power, time, or utilization inputs that appear directly in the formula have the greatest effect. Change one input at a time to compare scenarios.
No. It is a planning estimate based only on the values you enter and does not connect to a vehicle, battery-management system, charger, or utility account.
Enter percentages as displayed numbers, such as 90 for 90%. The calculator converts them to decimal form internally.
Temperature, battery conditioning, charging curves, vehicle limits, tire condition, station sharing, fees, and driving conditions can change real-world results.
Yes. Calculate the first scenario, note the results, then change one or more inputs. The reset button restores the example defaults.