About Electric Vehicle (EV) Charging Time & Cost Calculator
Comprehensive electric vehicle (EV) powertrain and charging studio. Calculates charging duration and added driving range (km & miles) from initial to target State of Charge (SoC). Supports Level 1 household plugs (1.4 - 2.3 kW), Level 2 home wallboxes (7.4 - 22 kW), and DC Fast Superchargers (50 - 250 kW) with realistic efficiency derating, cost per session, and net fuel savings vs gasoline.
Key Capabilities & Features
- Precise charging duration (hours & minutes) from custom start SoC% to target SoC%
- Driving range added in both metric (km) and imperial (miles) based on vehicle Wh/km efficiency
- Charger power presets from standard 2.3 kW wall plugs to 250 kW DC Fast Superchargers
- Electricity charging cost per session with cost per 100 km metrics
- Direct financial savings comparison against an equivalent internal combustion gasoline car
- Popular presets: Tesla Model 3/Y, Hyundai Ioniq 5, Kia EV6, Ford Mach-E, BYD, and VW ID.4
How to Use Electric Vehicle (EV) Charging Time & Cost Calculator
Select EV or Set Battery Size
Choose a preset vehicle (Tesla, BYD, Hyundai, Ford) or enter custom usable battery capacity in kWh.
Set SoC Range & Charger Speed
Select your starting and target battery percentage (e.g. 20% to 80%) and charger power in kW.
Review Time & Savings
Inspect exact charging duration, added range, cost to charge, and dollar savings compared to petrol.
Privacy & In-Browser Execution Guarantee
100% private. Your vehicle choices, charging speeds, and electricity rates are computed locally.
Frequently Asked Questions
Why is EV charging slower after 80% State of Charge?
Lithium-ion batteries accept maximum current when relatively empty. As cells approach full capacity, internal resistance increases and battery temperatures rise, causing the Battery Management System (BMS) to taper charging power significantly to prevent cell degradation and lithium plating.
How much does it cost to fully charge an EV at home?
At standard residential electricity rates ($0.15 to $0.25 per kWh), fully charging a 75 kWh battery pack from empty costs approximately $11 to $18, delivering 450 to 500 km of driving range — typically 3 to 4 times cheaper than filling an equivalent gasoline car.