Public Charging Cost Calculator — Estimate Your EV Charging Expenses

Public Charging Cost Calculator

Calculate the cost of charging your electric vehicle at public charging stations. Compare different charging speeds, electricity rates, and estimate your charging time and expenses.

Step 1: Charging Details

20%
80%

Charging Efficiency

Public charging stations typically have 85-95% efficiency due to energy conversion losses and thermal management systems. This means you’ll pay for slightly more electricity than what actually enters your battery.

Step 2: Cost & Charging Options

About Charging Costs

Public charging costs vary significantly based on location, provider, and charging speed. Rapid charging typically costs more per kWh than slower charging options. Some providers also charge session fees or idle fees after charging is complete.

Charging Cost Results

Summary
Charging Comparison
Breakdown

Estimated Charging Cost

£16.20
For 45 kWh at £0.45/kWh
Energy Needed
45 kWh
Charging Time
2h 03m
Cost per kWh
£0.45
Charging Speed
22 kW

Charging Speed Comparison

Charging Type Power (kW) Charging Time Estimated Cost

Cost Breakdown

Charging Cost Formula

Cost = (Battery Capacity × (Target % – Current %) × Electricity Rate) / Charging Efficiency

To calculate charging cost, multiply the battery capacity by the percentage of charge needed, then multiply by the electricity rate. For example: 75 kWh battery, 60% charge needed at £0.45/kWh with 90% efficiency = (75 × 0.6 × 0.45) / 0.9 = £22.50.

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