How Much Does It Cost to Charge a Tesla at Home?
Charging a Tesla at home is one of the most practical advantages of EV ownership — and for most drivers, it's significantly cheaper than fueling a gas vehicle. But "how much it costs" isn't a single number. It depends on your electricity rate, your Tesla model, how often you drive, and how you set up your home charging.
Here's how to think through the actual math.
The Basic Formula: Electricity Rate × Battery Size
Home charging cost comes down to one core calculation:
Cost = kWh used × your electricity rate (per kWh)
Tesla batteries are rated in kilowatt-hours (kWh) — the same unit your electric utility uses to bill you. A larger battery costs more to fill from empty. A higher electricity rate means each kWh costs more.
Tesla Battery Sizes by Model (Approximate)
| Model | Approximate Battery Size | EPA Range (Approx.) |
|---|---|---|
| Model 3 Standard Range | ~57–60 kWh | ~270 miles |
| Model 3 Long Range | ~75–82 kWh | ~341 miles |
| Model Y Long Range | ~75–82 kWh | ~330 miles |
| Model S Long Range | ~100 kWh | ~405 miles |
| Model X Long Range | ~100 kWh | ~348 miles |
| Model 3 Performance | ~75–82 kWh | ~315 miles |
Battery sizes and EPA ratings vary by model year and trim. Tesla updates these figures periodically.
A full charge on a Model 3 Standard Range uses roughly 57–60 kWh. At the U.S. residential electricity average of around $0.16–$0.17 per kWh (varies widely by state and utility), a full charge runs approximately $9–$10. A 100 kWh battery in a Model S or Model X runs closer to $15–$17 for a full charge at that same average rate.
⚡ These are ballpark figures. Your actual cost depends entirely on your local rate.
Electricity Rates Vary — A Lot
This is the single biggest variable. Residential electricity rates across the U.S. range from roughly $0.10/kWh in some Southern and Midwestern states to $0.30–$0.45/kWh in states like California and Hawaii.
That spread is enormous. A 75 kWh fill-up costs about $7.50 at $0.10/kWh and $22.50 or more at $0.30/kWh.
Time-of-use (TOU) rates are another factor. Many utilities charge less during off-peak hours — often late at night or early morning. Tesla vehicles and home chargers can be scheduled to charge during those windows, which can meaningfully reduce monthly costs.
Your utility's rate structure matters as much as the vehicle itself.
Level 1 vs. Level 2 Home Charging
The cost per kWh is the same regardless of which charger you use — electricity is electricity. What differs is speed, which affects convenience more than cost.
Level 1 (standard 120V outlet):
- Uses a standard wall outlet, no installation needed
- Adds roughly 3–5 miles of range per hour
- Fine for low-mileage drivers who park overnight
- No equipment cost beyond the included mobile connector
Level 2 (240V home charger):
- Requires a 240V outlet and often professional installation
- Adds roughly 20–30+ miles per hour depending on the charger and vehicle
- Tesla's Wall Connector is a common choice; third-party NEMA 14-50 setups also work
- Installation costs typically range from $200–$1,000+ depending on your panel, wiring, and local labor rates
The upfront cost of Level 2 installation is a one-time expense — it doesn't change your per-kWh rate.
How to Calculate Your Own Monthly Charging Cost
If you drive roughly 1,000 miles per month:
- Find your Tesla's efficiency — typically listed as Wh/mile (watt-hours per mile). Tesla's own display tracks this. A reasonable average is around 250–300 Wh/mile, depending on model, speed, weather, and driving habits.
- Multiply: 1,000 miles × 0.28 kWh/mile = ~280 kWh used
- Multiply by your rate: 280 kWh × $0.16 = ~$44.80/month
At $0.30/kWh, that same 1,000 miles costs roughly $84. At $0.10/kWh, closer to $28.
🔋 Cold weather reduces battery efficiency, which increases the kWh needed for the same number of miles. Highway driving at higher speeds also pulls more energy than city driving.
What Shapes Your Actual Cost
- Your state and utility — the biggest lever
- Time-of-use rates — scheduling charging overnight can cut costs
- Tesla model and battery size — larger batteries cost more per fill
- Driving habits — how many miles per week, highway vs. city, climate
- Charging frequency — most drivers don't charge from 0 to 100% daily; Tesla recommends keeping the battery between 20–80% for daily use
The Gap Between "Average" and Your Situation
The national averages suggest home Tesla charging costs somewhere in the range of $10–$25 per full charge for most models. Monthly costs for typical drivers often land between $30 and $80, but that range stretches further in high-rate states or for high-mileage drivers.
What your charging actually costs is a function of your electricity rate, your specific Tesla, how far you drive, and whether you take advantage of off-peak pricing. Those variables are specific to your utility account, your location, and your driving patterns — not something a national average captures.
