EV kWh Calculator - Charge
iOS Universel / Utilitaires
How many kWh from 20% to 80%? How long will it take? How much will it cost?
Pick your car. Get the answer instantly.
EV Charge Calculator has a built-in database of 186+ electric vehicles across 35+ makes. Select your car, set your current and target battery percentage, choose your charger type, and see the kWh needed, estimated charge time, and cost — all updating in real time as you adjust.
No subscriptions. No ads. No account. No tracking. Pay once, calculate forever.
WHY EV OWNERS LOVE IT:
- Know exactly how many kWh you need before plugging in — stop overpaying at public chargers
- See realistic DC fast charge times with a built-in taper curve model — not the oversimplified "kWh / kW" math that other apps use
- Compare charging costs across 7 sources: home off-peak, home on-peak, workplace, public L2, DC fast, and custom rates
- Works completely offline — no internet connection needed, ever
FEATURES:
- 186+ EV models with verified usable battery capacities
- Instant kWh calculation from any % to any %
- DC fast charge time estimates with 5-segment taper curve
- 10 charger presets: Level 1, Level 2, DC Fast (50-350 kW), plus custom
- Cost comparison across home, workplace, and public charging rates
- 4 quick scenarios: overnight charge, road trip top-up, full charge, emergency top-up
- Save up to 5 vehicles for quick switching (great for multi-EV households)
- Custom vehicle support — enter any battery size
- 20 currency options including USD, EUR, GBP, JPY, AUD, CAD, and more
- Miles and kilometers support
- Dark mode by default, light mode available
- Zero data collection — your privacy label says "Data Not Collected" and we mean it
SUPPORTED MAKES:
Tesla, Hyundai, Kia, Ford, Chevrolet, BMW, Mercedes-Benz, Audi, Volkswagen, Rivian, Lucid, Porsche, Nissan, Toyota, Volvo, Polestar, BYD, Genesis, Acura, Cadillac, Chrysler, Fiat, GAC Aion, GMC, Honda, Jaguar, Lexus, Lotus, Mazda, Mini, Nio, Smart, Subaru, Wuling, Xiaomi, Xpeng, and more.
PERFECT FOR:
- New EV owners still learning their car's battery
- Road trippers planning charging stops
- Public charger users who want to know the cost before plugging in
- Home charger users estimating overnight charging needs
- Multi-EV households comparing vehicles
- EV shoppers comparing battery sizes across models
Note: Charge time estimates are approximate. Actual times vary based on temperature, battery condition, state of charge, and vehicle-specific charging curves.
