EV Charging Time Calculator
Work out exactly how long your electric car needs on a home or workplace AC supply. Built on 230V, the standard across Pakistan, and on the same calculation the ChargePK app uses — so the answer here and the answer in your pocket never disagree.
Pick your car from 98 models and the battery size fills itself in. Set where the charge starts and where you want it to finish, choose the ampere your supply actually delivers, and you get the time along with the energy it will draw.
Planning around a schedule? Switch to Start at to see when a charge will finish, or Finish by to see when you need to plug in — useful if you charge overnight and want the car ready before you leave.
The result assumes AC charging at a steady rate, which is how home and workplace charging behaves. DC fast charging tapers as the pack fills and is a different problem entirely; there is more on that below.
Charging details
A normal wall socket is 16A. A dedicated EV wall box is usually 32A.
Enter your battery size and charge levels to see the time.
Effective power = selected kW × 0.9 · Voltage 230V. AC charging only — DC fast charging tapers as the battery fills and cannot be estimated this way.
How long common EVs take to charge
A 20% to 80% charge on the two supplies most people in Pakistan actually have. 16A is an ordinary household socket; 32A is a dedicated wall box. Figures come from the same calculation as the tool above.
| Car | Battery | 16A (3.7 kW) | 32A (7.4 kW) |
|---|---|---|---|
| GUGO GIGI | 16.8 kWh | 3h 03m | 1h 31m |
| BYD Atto 2 | 45.12 kWh | 8h 10m | 4h 05m |
| MG ZS EV | 51.1 kWh | 9h 15m | 4h 38m |
| BYD Atto 3 | 60.5 kWh | 10h 58m | 5h 29m |
| BYD Seal | 61.44 kWh | 11h 08m | 5h 34m |
| Deepal S07 | 66.8 kWh | 12h 06m | 6h 03m |
| Tesla Model Y | 75 kWh | 13h 35m | 6h 48m |
| BMW iX | 111.5 kWh | 20h 12m | 10h 06m |
Bigger battery, longer charge — the relationship is that simple on AC. What changes it is the ampere you can supply and, on some cars, the onboard charger's own ceiling.
AC and DC charging are different problems
AC charging is what happens at home, at the office and at most hotel and mall chargers. The wall unit supplies alternating current and the car's onboard charger converts it to DC for the battery. That converter is the bottleneck, and the rate stays roughly flat from 0% to 100%. It is predictable, which is why it can be calculated.
DC fast charging bypasses the onboard charger and feeds the battery directly. It is much faster but the rate is not constant: it peaks when the pack is nearly empty and tapers steeply past about 80% to protect the cells. A car that takes 30 minutes from 20% to 80% can need another 30 for the last 20%. That curve is specific to each model, so this calculator deliberately does not try to guess it.
What ampere you can actually use
- 16A household socket — about 3.7 kW. The granny cable that came with the car. Works with no installation, but draws near the socket's rating for hours at a time.
- 32A wall box — about 7.4 kW. A dedicated unit on its own breaker with a heavier cable run. Roughly halves charging time and is the sensible choice if you charge at home most nights.
- Above 32A. Needs three-phase supply, which is uncommon in Pakistani homes, and most cars sold here cannot use more than 7 kW on AC anyway.
Selecting a higher ampere than your wiring supports will not speed anything up. The breaker trips, or in a poorly wired circuit the cable heats. If you are unsure, 16A is the safe assumption.
What this calculator does not model
Three things are deliberately left out, because including them would require numbers manufacturers rarely publish:
- Your car's onboard AC limit. Many cars sold here cap at 6.6 or 7 kW regardless of supply. If yours does, pick the ampere matching that ceiling.
- The DC taper. Covered above — it is model-specific and not a flat rate.
- Battery temperature. Significant on DC, minor on AC.
Within AC charging, the 90% efficiency factor covers the ordinary losses, and the result should land within a few minutes of reality.
What a charge costs
Take the energy figure the calculator gives you and multiply by your rate. At PKR 30 per unit, 30 kWh costs about PKR 900 — enough for roughly 150 to 200 km in most of the cars sold here. Public charging is dearer:
| Where | Typical price (PKR/kWh) | 30 kWh costs |
|---|---|---|
| Home, domestic tariff | 20 – 40 | PKR 600 – 1,200 |
| Public AC charging | 40 – 90 | PKR 1,200 – 2,700 |
| Public DC fast charging | 80 – 160 | PKR 2,400 – 4,800 |
Live per-station pricing is on the ChargePK charger map, and the national charging guide covers how the network is laid out city by city.
Common questions
How long does it take to charge an electric car in Pakistan?
On a standard 230V household socket at 16A you get about 3.7 kW, or roughly 3.3 kW after losses. A 50 kWh battery from 20% to 80% takes about 9 hours on that supply. A 32A wall box roughly halves it to about 4 hours 30 minutes. DC fast chargers are far quicker, but this calculator covers AC home and workplace charging.
What ampere should I choose?
A normal Pakistani wall socket is 16A. A dedicated EV wall box is usually 32A and needs its own breaker and thicker cable run from the distribution board. If you are plugging into an ordinary socket with the cable that came with the car, choose 16A. Choosing a higher figure than your wiring supports will not make the car charge faster; it will trip the breaker or overheat the circuit.
Why is the result slower than my charger rating?
Charging is not perfectly efficient. Energy is lost as heat in the cable, in the onboard charger that converts AC to DC, and in the battery itself. This calculator applies a 90% efficiency factor, the same figure the ChargePK app uses. A 7.4 kW wall box delivers roughly 6.6 kW into the battery.
Does this work for DC fast charging?
No, and deliberately so. DC charging speed changes constantly: it is fastest when the battery is nearly empty and tapers sharply above about 80%. A flat calculation would be badly wrong at both ends. Use this for AC charging, where the rate stays roughly constant from start to finish.
Why does my car charge slower than the calculator says even on a big wall box?
Every car has an onboard charger with a maximum AC rate, and that ceiling applies no matter how much power the wall box can supply. Many cars sold in Pakistan cap at 6.6 kW or 7 kW AC, so an 11 kW or 22 kW supply gains you nothing. This calculator assumes the supply is the limit; if your car has a lower AC ceiling, use the ampere that matches it.
Should I charge to 100%?
For everyday use most manufacturers suggest 80% on lithium-ion packs, keeping the full charge for long trips. Charging the last 20% is also the slowest part on DC. Cars with LFP batteries, which includes many Chinese models sold here, are usually specified to be charged to 100% regularly. Check your own handbook.
How much does a full charge cost at home?
Multiply the energy figure this calculator gives you by your per-unit tariff. At PKR 30 per unit, putting 30 kWh into a car costs about PKR 900. Public AC charging in Pakistan is roughly PKR 40 to 90 per kWh and DC fast charging roughly PKR 80 to 160.
Does hot weather change charging time?
On AC charging the effect is small, though the car may run its cooling pump and draw a little extra. Heat matters far more on DC fast charging, where a hot pack will deliberately slow the rate to protect itself. Charging overnight in Pakistani summers is easier on the battery than a mid-afternoon DC session.
Can I charge from a normal socket safely?
Yes, with the granny cable supplied with the car, on a socket and circuit in good condition. It draws close to the socket rating continuously for hours, which ordinary sockets are not really designed for. If you charge at home regularly, a properly installed wall box on its own breaker is the safer arrangement.
What about solar or a generator?
Solar works well for AC charging if your inverter can hold a steady output at the ampere you select, though passing clouds will interrupt it. Generators are less suitable: many EV chargers refuse an unstable frequency or a floating earth, and a charge that starts may stop partway.
Does this calculator work for plug-in hybrids?
Yes. Enter the size of the electric battery, not the fuel tank. PHEV packs are small, typically 13 to 30 kWh, so they usually fill from a normal socket in a few hours.
Where can I fast charge on a long trip?
Use the live ChargePK map for the current network. Every public station in Pakistan is listed with its connector, power and price, and the map shows what is actually working right now.
Comparing quoted range figures instead? Try the EV Range Converter →