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When Will My Electric Car Finish Charging?

📌 How to use: Select mode → Set target time → Enter duration → See results!

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How to Calculate Delay Start Time

When will my Tesla finish charging overnight?

Calculate kWh needed: (Target% - Current%) × battery size. For a Model 3 LR (75 kWh) charging from 20% to 80%: 0.6 × 75 = 45 kWh. At 11 kW Wall Connector: 45 ÷ 11 = 4.1 hours. Starting at 11 PM → finishes around 3:06 AM.

How long to charge EV from 20% to 80%?

Depends on battery size and charger speed. For a 75 kWh battery: 45 kWh needed. At home (7 kW): ~6.5 hours. At destination charger (11 kW): ~4 hours. At DC fast charger (150 kW): ~20 minutes. Use our calculator with your specific charging duration.

What time should I start charging for off-peak rates?

Check your utility's off-peak hours (often 9 PM - 7 AM or 11 PM - 7 AM). Calculate your charging duration, then use our Finish At mode: enter 7 AM (end of off-peak) and your charging duration to find when to start.

Why does EV charging slow down after 80%?

Battery chemistry requires slower charging above 80% to prevent degradation and overheating. DC fast charging 80-100% can take as long as 20-80%. For road trips, charge to 80% and move on. For home charging, this slowdown is less noticeable.

How to calculate DC fast charging time for road trip?

DC charging isn't linear - it's fastest from 10-50%, slows from 50-80%, and crawls above 80%. For rough estimates: 10-80% on a 150kW charger takes about 30-40 min for most EVs. Use your car's app or nav system for precise estimates.

About This Calculator

Why EV Charging Time Calculation Matters

Unlike filling a gas tank in 5 minutes, EV charging takes planning. Whether you're charging at home overnight, at a destination charger during dinner, or planning a road trip with DC fast charging stops, knowing your finish time helps you:\n\nOptimize electricity costs: Time home charging to finish during off-peak hours.\n\nPlan departures: Know if you'll have enough charge by morning for your commute.\n\nRoad trip planning: Calculate how long each charging stop will take.

How to Calculate EV Charging Time

1. Know Your Battery Size: Check your EV's usable battery capacity (e.g., Tesla Model 3 LR = 75 kWh).\n\n2. Calculate Energy Needed: (Target % - Current %) × Battery Size = kWh needed. Example: (80% - 20%) × 75 kWh = 45 kWh.\n\n3. Divide by Charging Rate: 45 kWh ÷ 7 kW (home charger) = 6.4 hours.\n\n4. Use Our Calculator: Enter 6.4 hours (384 minutes) with your start time to see exact finish time.

Common EV Charging Rates

Level 1 (120V outlet): 1-1.5 kW, adds 3-5 miles/hour. Best for overnight top-ups.\n\nLevel 2 (240V home/destination): 7-19 kW, adds 20-60 miles/hour. Most common home charging.\n\nDC Fast Charging: 50-350 kW, adds 100-1000 miles/hour. For road trips. Note: charging slows significantly above 80% SoC.\n\nTesla Supercharger V3: Up to 250 kW peak, but actual rate depends on battery temperature and state of charge.

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