EV Charging Calculator

Stop guessing when your EV will be ready!

EV Charging Calculator turns battery capacity, current and target charge levels, and charger power into a clear estimate of charging time and completion time. Use it with a standard wall outlet, a Level 1 or Level 2 home charger, or a DC fast charger.

PLAN YOUR CHARGE

• Start now and see when your vehicle should be ready.
• Schedule a future start time and receive an optional reminder when it is time to plug in.
• Choose when you need charging to finish and calculate the latest time you should start.
• Enter your electricity rate to estimate the cost of the charge.
• Add your vehicle’s efficiency to estimate the driving range gained.

ESTIMATES THAT FIT YOUR SETUP

• Save profiles for multiple vehicles and battery sizes.
• Use regional charger and voltage presets, including 120/240V and 230V configurations.
• Enter custom current or power values in amps and kilowatts.
• Adjust charging efficiency and charge tapering for estimates that better reflect your vehicle and charging setup.
• Improved modeling accounts for power used by the vehicle while charging, particularly with slower chargers.

WIDGETS AT A GLANCE

Keep your most recent calculation close at hand with small and medium Home Screen widgets or a Lock Screen widget, no need to open the app just to check your estimate.

PRIVATE BY DESIGN

No account is required. During normal calculator use, your entries and saved settings remain on your device and are not sent to a server.

Actual charging times can vary with the vehicle, battery temperature, charger, weather, and other conditions. Estimates are intended for planning.