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EV Charging Cost & Time Calculator

Calculate electric vehicle charging costs and duration for AC & DC chargers.

Input Parameters

Calculation Results

Estimated Charging Cost
$12.13
Estimated Charge Time
3h 33m
Energy Added
39 kWhkWh
Grid Energy Drawn (90% eff)
43.3 kWh
Step-by-Step Calculation Solution
1.Energy needed = Battery capacity × (% to add) = 65 kWh × 60% = 39 kWh
2.Charging cost = Energy drawn × Tariff rate = 43.3 kWh × $0.28/kWh = $12.13

Formula & How EV Charging Cost & Time Calculator Works

Mathematical Formula
Cost = (Battery kWh × % to Add / 0.90 Efficiency) × Tariff Rate

Calculates total kWh drawn from grid including 90% charging efficiency losses.

How to Calculate EV Charging Cost & Time Calculator (Step-by-Step)
  1. Enter EV Battery Size (kWh): Input your target parameter value.
  2. Enter Current Battery %: Input your target parameter value.
  3. Enter Target Charge %: Input your target parameter value.
  4. Enter Charger Power Output (kW): Input your target parameter value.
  5. Enter Electricity Rate ($/kWh): Input your target parameter value.
  6. Apply Formula: Calculate using Cost = (Battery kWh × % to Add / 0.90 Efficiency) × Tariff Rate.
  7. Review Results: View exact computed answers, metrics, and worked mathematical proofs.
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Frequently Asked Questions (FAQs)

Is home EV charging cheaper than petrol?

Yes, home EV charging at $0.28/kWh costs roughly 1/3 of equivalent petrol costs per 100km.

Official Regulatory & Government Data Sources

Authoritative Standards & Verified Reference Citations

Independent & Verified

Calculations and mathematical logic on this page are grounded in published statutory rules, regulatory standards, and official government data published by the following bodies:

FuelWatch Western AustraliaGovernment
Government of Western Australia (DEMIRS)

Statutory fuel price monitoring and 24-hour price transparency service for Western Australia.

www.fuelwatch.wa.gov.au
FuelCheck New South WalesGovernment
NSW Government (Department of Customer Service)

Real-time statutory fuel price matching across all service stations in New South Wales.

www.fuelcheck.nsw.gov.au
Green Vehicle Guide (GVG)Government
Australian Department of Infrastructure, Transport & Regional Development

Official Australian fuel consumption ratings (L/100km) and tailpipe CO₂ emissions data.

www.greenvehicleguide.gov.au

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