Tesla Charging Cost Calculator
Estimate charging cost, full-charge cost, trip electricity cost, cost per mile, and monthly EV energy cost from battery size, battery level, and price per kWh.
Estimate the cost to charge a Tesla
A Tesla charging cost calculator estimates how much you pay to add energy to the battery. Calculate Tesla charging cost by multiplying the energy added in kilowatt-hours (kWh) by your electricity rate per kWh.
For example, adding 60 kWh at $0.15 per kWh costs $9.00. Home charging costs typically range from $6 to $18 for 40–120 kWh, depending on local electricity prices and battery size.
This calculator can include charging efficiency, compare a partial charge with a full charge, and estimate trip or monthly electricity cost from vehicle efficiency.
Estimated charging cost
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Energy added to battery
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Before charging losses.
Energy drawn from charger
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Includes charging efficiency.
Full charge estimate
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0% to 100% at the same price.
Trip electricity cost
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Cost per mile / km
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Based on vehicle efficiency.
Monthly electricity cost
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Charging cost by battery level
Estimated cost from 0% to common battery levels at the selected price.
| Battery level | Battery energy | Wall energy | Cost |
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Charging note: This is a planning estimate. Actual cost can change with charger fees, idle fees, taxes, membership plans, time-of-use rates, cold weather, battery preconditioning, and charging losses.
How to use the Tesla charging cost calculator
- Choose a vehicle preset or battery size: Select a planning preset or enter your Tesla's usable battery capacity in kWh.
- Add the electricity price: Use your home utility rate, Supercharger price, workplace charger price, or public charging rate.
- Set the battery levels: Enter the current and target battery percentages for the charging session.
- Adjust efficiency: Use charging efficiency to account for energy that reaches the charger but not the battery.
- Review driving cost: Use the optional trip section to estimate cost per trip, cost per mile or kilometer, and monthly electricity cost.
Tesla charging cost formulas
Charging cost depends on battery capacity, the battery percentage you add, electricity price, and charging efficiency. A simple full-charge estimate multiplies battery capacity by price per kWh; this calculator also includes optional charging losses.
Energy added = battery capacity x (target % - start %) / 100
Charging cost = (energy added / charging efficiency) x price per kWh
Trip cost = distance x vehicle efficiency x price per kWh / 100
Calculator model reference: Omni Calculator - Tesla Charging Cost Calculator.
Worked examples
Use these examples as quick sense checks. Your actual charging bill depends on local electricity prices, charger pricing, charging losses, vehicle efficiency, weather, and driving style.
| Scenario | Inputs | Estimated cost |
|---|---|---|
| Home charge from 20% to 80% | 75 kWh battery, 90% efficiency, $0.17/kWh | About $8.50 |
| Full home charge | 75 kWh battery, 90% efficiency, $0.17/kWh | About $14.17 |
| 100-mile trip | 28 kWh/100 mi, $0.17/kWh | About $4.76 |
Home charging vs. Supercharging
The same Tesla battery can cost very different amounts to charge depending on the price per kWh. Home charging often uses a utility rate, while public fast charging may include higher energy pricing, idle fees, congestion fees, taxes, or membership discounts.
Use your actual rate
Check your utility bill or charger app for the exact price per kWh. Time-of-use plans can make overnight charging cheaper.
Watch fast-charger fees
Public chargers may add session fees or idle fees. Use the all-in price if the app shows a final cost per kWh.
Compare by trip
For road trips, the trip cost estimate is often more useful than a full-charge estimate because you rarely arrive at exactly 0%.
Tesla charging reference: Tesla Support - Charging.
Interesting Fact
The U.S. Department of Energy's Alternative Fuels Data Center reported that EV charging ports in its Station Locator increased by 6.3% in the second quarter of 2024, while DC fast charging ports grew by 7.4%. That matters for Tesla charging cost because more public ports can change route planning, charger availability, and the mix between home charging and paid fast charging. For everyday budgeting, your own price per kWh still matters more than the national network trend, but the statistic shows why public charging costs are becoming a more practical line item for more drivers. Source: U.S. DOE Alternative Fuels Data Center - Electric Vehicle Charging Infrastructure Trends.
How to choose the right price per kWh
The calculator is only as accurate as the electricity price you enter. For Tesla charging cost, the best price per kWh is the actual all-in rate you pay for the charging session, not just the headline energy charge if delivery fees, taxes, or network fees are added separately.
| Charging situation | Best number to enter | Common mistake |
|---|---|---|
| Home flat-rate plan | Your effective electricity cost per kWh after delivery charges and recurring energy fees that scale with use. | Using only the supply rate while ignoring usage-based delivery charges. |
| Time-of-use plan | The rate for the hours when the Tesla actually charges, such as overnight off-peak pricing. | Averaging the whole bill when charging is concentrated in one low-cost or high-cost window. |
| Supercharger or public charger | The app's displayed price per kWh, plus any session, idle, parking, or tax charges if they apply. | Comparing only kWh rates when one location also charges fixed fees. |
| Solar or workplace charging | Use the marginal cost you want to compare against, such as exported solar value, free charging, or a reimbursed workplace rate. | Treating every solar kWh as free when you could have exported or credited that energy. |
Electricity price reference: U.S. Energy Information Administration - Electric Power Monthly Table 5.6.A.
Charging losses and real-world adjustments
A Tesla does not store every kWh that comes from the wall. Charging electronics, cable heat, battery conditioning, cabin preconditioning, and cold weather can all increase the energy drawn from the charger compared with the energy added to the battery.
When to lower efficiency
Use a lower charging efficiency when charging in cold weather, using a low-power outlet, preconditioning heavily, or seeing a large gap between charger kWh and battery percentage gained.
When to use 100%
If you already know the wall energy from a charger receipt or home energy monitor, use that measured kWh directly and set efficiency to 100% to avoid counting losses twice.
Why the app may differ
Tesla app estimates, charger receipts, and utility bills can differ because they measure different points in the energy path: battery energy, charger output, or meter consumption.
Practical calibration tip
For the most accurate home estimate, compare one full month of charging kWh from your charger or utility monitor with the battery percentage and miles added in the car. Use that observed difference to tune the efficiency field for your own setup.
Charging efficiency reference: FuelEconomy.gov - All-Electric Vehicles.
Build a realistic monthly charging budget
A monthly EV charging budget is usually more useful than one isolated charge. Start with expected miles, multiply by vehicle efficiency, adjust for charging losses if needed, and then multiply by your real price per kWh.
Monthly cost = monthly distance x efficiency / 100 x price per kWh
Add a charging-loss adjustment when your price is based on wall energy rather than battery energy.
| Monthly distance | At 28 kWh / 100 mi | At $0.17 / kWh | Planning note |
|---|---|---|---|
| 500 miles | 140 kWh | $23.80 | Light commuting or occasional driving. |
| 1,000 miles | 280 kWh | $47.60 | A common baseline for comparing home and public charging. |
| 1,500 miles | 420 kWh | $71.40 | Higher-mileage use where off-peak charging can matter more. |
Frequently Asked Questions
How does this Tesla charging cost calculator work?
Enter your Tesla model or usable battery size, starting state of charge, target state of charge, and electricity rate. The calculator converts the percentage added into kilowatt-hours of energy, adjusts for charger efficiency, and multiplies that amount by your rate to estimate the charging cost.
How much does it cost to fully charge a Tesla battery at home?
A simple full-charge estimate is battery capacity x your utility electricity rate, with charging losses added if you want a wall-energy estimate. For example, a 75 kWh battery at $0.17/kWh costs $12.75 before losses; with 90% efficiency, the home charging estimate is about $14.17. If you use solar billing or a time-of-use rate, enter the rate that applies when the vehicle actually charges.
Why do charging speed and efficiency change the estimate?
Not every kilowatt-hour drawn from the outlet reaches the battery. Some energy is lost as heat or used by charging electronics, battery conditioning, adapter limitations, and vehicle systems. Faster charging speed, cold weather, or lower efficiency can increase wall energy, which raises the final cost.
Is home charging cheaper than a Supercharger or public charging station?
Home charging is often cheaper, especially with off-peak electricity rates, but the answer depends on your utility tariff and local Supercharger pricing. Public charging can vary by charging station, session fee, idle fee, and location, while a destination charger may be free, bundled into parking, or priced by the host. Use the price per kWh shown on your bill or charging app for the most accurate comparison.
How do I estimate Tesla trip cost, mileage, and ownership cost?
Multiply trip distance by vehicle efficiency and charging price, then divide by 100. For example, a 100-mile trip at 28 kWh/100 mi and $0.17/kWh costs about $4.76 in electricity. For a broader ownership cost estimate, compare your normal mileage, expected range, home and public charging mix, and the rates you actually pay throughout the month.
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Disclaimer: This Tesla charging cost calculator is for planning and educational estimates. Actual charging cost depends on vehicle configuration, battery condition, charging curve, charger type, weather, electricity tariff, taxes, idle fees, membership plans, and local charging-network pricing.
Last updated: June 23, 2026