How long, and how much — for your car, your charger, your rate.
Car —
No cars saved yet. Add one and it will be waiting here every time.
Charger —
Printed on the unit or shown in the operator's app. A household socket is about 2.3 kW, a wallbox 7.4 kW. The car's own limit still applies.
Set automatically — 88% on AC, 93% on DC. Leave it alone unless you have measured your own.
Charge window —
Drag for speed, tap − / + for the exact figure (hold to repeat). Stopping at 80% on a DC charger is not superstition — see the curve.
Price —
Time-based pricing punishes slow-charging cars. If your car tops out below the charger's rating, you pay for capacity you never received.
Whatever your bill or the operator's app actually charges. Nothing is assumed.
Charging session not started
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Charge curve —
The numbers
Segment breakdown
| SoC band | Avg power | Energy | Time |
|---|
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No charging session is running. Start one from the calculator.
—Demo speed 60×
Controls
Runs in real time against your actual clock, and survives a reload — close the tab and come back and it picks up where it is. Changing the calculator does not touch a running session.
Right now live
The plan
Alerts
Notifications are off.
Read this before you rely on a number. Catalogue figures are typical published values for models sold or imported into Sri Lanka, and they only ever prefill the form — the saved car is whatever you typed. Charging sockets in particular vary by source market, so check your own charge port rather than trusting the catalogue. Real battery capacity drops with age. The charge curve is a general model; your car, its battery temperature and the charger's own thermal limits all move it. Rates are yours to enter and nothing is assumed about who supplies your electricity.
Spec page of the manual. If it lists both total and usable, use usable.
What you actually get, or what the dash reads at 100%.
Look at the charge port on the car.
The manual calls this the on-board charger.
Pick "no DC socket" if the car cannot fast charge.
Quick-charging section of the manual.
Manuals for smaller EVs often say "approx. 6 hours on a 220 V socket". Enter that and this fills the AC charging power figure.
Every field here is printed in your owner's manual or shown on the dashboard. An older battery holds less than the printed figure — if yours does, enter what it actually holds.
Read whichever figure your charger or car app gives you. kWh delivered is measured at the plug, so the conversion loss is taken off before it reaches the battery.
Notifications are off.