EV Charging Calculator

- May 22, 2025
| |

Calculate charging costs, time, and range for electric vehicles based on battery capacity, charger power, and electricity rates.

Vehicle Information

kWh
miles/kWh

Charging Parameters

%
%

Charger Information

kW
%
$ per kWh

Advanced Options

About EV Charging

Electric vehicles can be charged at different speeds depending on the charging equipment. Understanding charging times, costs, and efficiency can help you optimise your EV ownership experience.

Charging Types
  • Level 1 (120V): Standard household outlet, typically 1.4 kW to 1.9 kW. Slowest charging option.
  • Level 2 (240V): Dedicated home or public charger, typically 3.3 kW to 19.2 kW. Most common for daily charging.
  • DC Fast Charging: High-powered stations, 50 kW to 350+ kW. Fastest option for long-distance travel.
Home vs. Commercial Charging
  • Home Charging: Typically the most cost-effective option, with rates based on your residential electricity plan.
  • Commercial/Public Charging: Often more expensive than home charging, with rates varying by network and location.
  • Workplace Charging: May be free or subsidised by employers as an employee benefit.
  • Tesla Supercharger: Exclusive network for Tesla vehicles with location-based pricing.
  • Electrify America/EVgo/ChargePoint: Major charging networks with membership options that may reduce per-kWh rates.
Charging Calculation Formulas
  1. Energy Added (kWh): Battery Capacity × (Target SoC - Current SoC) ÷ 100
  2. Charging Time (hours): Energy Added ÷ Charger Power × (100 ÷ Charger Efficiency)
  3. Total Cost ($): Energy Consumed × Electricity Rate
  4. Range Added (miles): Energy Added × Vehicle Efficiency
Factors Affecting Charging
  • Most EV batteries charge fastest between 20% and 80% SoC
  • DC Fast Charging slows down significantly above 80% to protect the battery
  • Charging at home during off-peak hours can reduce costs significantly
  • Battery efficiency decreases in extreme temperatures
  • Preconditioning your battery before fast charging can improve charging speed
  • Older batteries may charge more slowly than newer ones
  • Premium/luxury EVs often support higher charging speeds

Understanding the EV Charging Calculator

The EV Charging Calculator is a handy tool designed for electric vehicle (EV) owners. It helps users figure out how much it’ll cost to charge their EV, how long it will take, and how far they can drive once charged. By inputting details like battery capacity and charger power, users can get accurate information tailored to their specific vehicle and charging situation.

Why Use the Calculator?

Many people are choosing electric vehicles for their eco-friendliness and cost savings. However, understanding charging costs and times can be tricky. This calculator simplifies the process. It allows users to:

  • Estimate charging costs based on local electricity rates.
  • Calculate the time needed to fully charge the vehicle.
  • Determine how much range can be added with a specific charge.

Inputting Your Vehicle Information

Getting started with the EV Charging Calculator is easy. Users just need to provide some basic vehicle information. This includes the model of the car, its battery capacity, and how efficient it is in using energy. The calculator supports a wide range of EV models and allows for custom inputs as well, ensuring that there's something for every user.

Charging Parameters to Consider

Next, users need to input charging parameters. This involves selecting the current state of charge (SoC) and the target SoC they want to reach. Understanding these values helps in estimating how much energy needs to be added. It’s important for users to know how much charge their vehicle currently has to get accurate results.

Choosing the Right Charger Settings

Different chargers provide different power levels. The calculator allows users to choose their charging location and the type of charger they’ll be using. Options range from home charging to commercial charging stations. This selection affects the calculation of charging time and total costs, so it’s crucial to pick the right settings.

Advanced Features for Detailed Insights

The EV Charging Calculator also offers advanced options for those who want deeper insights. Users can adjust settings like charging curve and temperature adjustments. These features can refine the calculations further, helping to account for real-world factors that might affect charging efficiency.

Viewing Your Results

Once all the information is entered, users can view their results easily. The calculator provides a detailed breakdown of charging time, energy added, total cost, and range added. This information helps users understand their charging session better and plan their trips more efficiently.

Learn More About EV Charging

Finally, the calculator also offers helpful information about EV charging types and costs. Users can learn about different charging methods, such as Level 1, Level 2, and DC Fast Charging. Understanding these can help in deciding the best charging option for their daily needs, making EV ownership easier and more cost-effective.