About
What this site is — and how to read the numbers.
charging.guide is a charging calculator, a vehicle directory with charging specs for known EVs, and a short glossary of EV charging terms. It is built to answer practical questions: how much energy a session needs, how long it might take, and what it might cost.
How estimates work
Energy starts from your battery size, current and target charge (SOC), and optional battery health. The calculator adds charging loss — energy billed at the station or on your bill is usually a bit more than what reaches the pack.
Charge time divides that energy by effective power. Power is capped by both the charger and your vehicle's max AC or DC rate, then adjusted for weather and battery temperature when you set those options.
Level 1 and Level 2 sessions are modeled as nearly flat power: the rate stays steady for the whole session. Level 3 (DC fast charging) uses the same constant-power model for now; real curves taper as the battery fills — that is planned for a later update.
Cost uses the price you enter for each charger. Sample chargers ship with US-ish average rates (around $0.35/kWh for Level 2 and $0.48–$0.56/kWh for DC). Edit them to match your home rate or a network you use.
Data sources
Vehicle specs come from community EV datasets in the Open EV Data style: battery size, charge ports, and max AC/DC rates compiled from public sources.
When charging curves or manufacturer times appear on the site, they are labeled by source — manufacturer claims, measured sessions, or modeled estimates. Treat manufacturer numbers as best-case; measured curves reflect real-world conditions.
Disclaimer
Everything here is an estimate, not a guarantee. Public charger pricing changes by network, location, time of day, and membership. Session speed depends on station load, your car, temperature, and state of charge.
Do not use these numbers for navigation, financial planning, or warranty decisions. Always check the charger's live price display before you plug in.
Always follow the manufacturer's recommendations for your vehicle.
Always follow the manufacturer's recommendations for your vehicle.
Always follow the manufacturer's recommendations for your vehicle.