Tesla Model X Supercharging costs between $0.25 and $0.50 per kilowatt-hour in most of the United States, though the exact price depends on your location, the time of day, and whether you have an active Tesla subscription.

Tesla charges by the kilowatt-hour (kWh), not by time spent plugged in. A Model X battery holds about 100 kWh, so a full charge from empty costs roughly $25 to $50 at current rates. Most owners don't charge from completely empty—a typical top-up from 20% to 80% costs $15 to $30 and takes 25 to 30 minutes.

The price you see on the Supercharger screen is the rate for that specific location at that specific moment. Tesla adjusts pricing based on local electricity costs, demand, and time of day. Peak hours (typically 4 p.m. to 9 p.m.) cost more than off-peak charging. Some Superchargers in expensive markets like California or New York run closer to $0.50 per kWh, while rural locations or states with cheaper electricity may charge $0.25 or less.

Key Takeaways

  • Supercharging costs $0.25 to $0.50 per kWh depending on location and time of day, with peak hours charging more than off-peak times.
  • A full Model X charge (100 kWh) costs $25 to $50, but most owners charge from 20% to 80% for $15 to $30 per session.
  • The Tesla app shows real-time pricing at each Supercharger before you plug in, so you can see the exact rate you'll pay.
  • Charging speed slows significantly above 80% state of charge, so stopping at 80% saves both time and money compared to charging to 100%.
  • Home charging on a standard residential electricity plan typically costs one-third to one-half the price of Supercharging per mile driven.

How Tesla Calculates Your Supercharger Bill

When you plug into a Supercharger, the touchscreen and the Tesla app both display the per-kilowatt-hour rate for that location. The charger measures exactly how many kilowatts flow into your battery and multiplies that by the posted rate. You are charged only for the energy that enters the car—there is no session fee, no time charge, and no minimum purchase.

The charging curve matters to your final cost. A Model X charges fastest between 10% and 50% state of charge, pulling 170+ kW from the Supercharger. Between 50% and 80%, the power output drops to 100–120 kW. Above 80%, the car throttles back to 50 kW or less to protect the battery. This slowdown means charging from 80% to 100% takes nearly as long as charging from 60% to 80%, but you are paying the same per-kWh rate the entire time. Most owners stop at 80% and leave, which is faster and cheaper than topping off.

Location and Time-of-Day Pricing

Tesla's pricing algorithm responds to local electricity wholesale costs and Supercharger demand. A Supercharger in rural Montana might charge $0.28 per kWh at noon on a Tuesday, while the same rate in downtown Los Angeles could be $0.48 per kWh during evening rush hour. The app updates pricing in real time, so you see the current rate before you commit to charging.

Peak pricing typically runs from 4 p.m. to 9 p.m. on weekdays, when the electrical grid is under the most stress and electricity costs more. Off-peak rates (usually midnight to 6 a.m.) are the cheapest. If you can charge during off-peak hours—overnight at home or at a Supercharger late at night—you save 20% to 40% compared to peak-hour rates. The Tesla app shows a price graph for each Supercharger, so you can see when rates are lowest.

Comparing Supercharging to Home Charging

Home charging on a standard residential electricity plan costs significantly less per mile than Supercharging. The average U.S. residential electricity rate is around $0.14 to $0.16 per kWh. A Model X uses roughly 0.25 kWh per mile, so home charging costs about $0.035 to $0.04 per mile. Supercharging at $0.35 per kWh costs about $0.09 per mile—more than double.

This is why Superchargers are designed for road trips and emergencies, not daily charging. If you own a Model X and charge at home most nights, Supercharger costs matter only when you travel beyond your home charging range. For daily commuting, a Level 2 home charger (240 volts) overnight is far cheaper and more convenient than any public charger.

Some owners with time-of-use (TOU) electricity plans pay even less at home—$0.10 per kWh or less during off-peak hours. If your utility offers TOU rates, charging your Model X between 9 p.m. and 6 a.m. can cost half what you pay at a Supercharger.

What Affects Your Total Charging Cost on a Road Trip

On a long road trip, your total Supercharging cost depends on how many times you stop, how much you charge at each stop, and when you charge. A 500-mile trip might require two Supercharger stops. If you charge from 20% to 80% at each stop (about 60 kWh each time), you are adding roughly 120 kWh to your battery. At an average rate of $0.35 per kWh, that is $42 for the entire trip.

The time of day matters. Charging during lunch hours (11 a.m. to 2 p.m.) is usually cheaper than charging during evening peak hours. Planning your route to avoid peak-pricing windows can save $5 to $15 per stop on a long trip. The Tesla navigation system shows Supercharger locations and estimated wait times, but it does not yet display pricing for future stops—you have to check the app manually or look at the price graph before you leave.

Understanding Supercharger Pricing Variations by Region

Supercharger rates vary dramatically by state and region because electricity costs vary. California, Hawaii, and the Northeast (New York, Massachusetts, Connecticut) have the highest rates, often $0.40 to $0.55 per kWh. The Midwest and South generally charge $0.25 to $0.35 per kWh. These differences reflect local electricity generation costs, transmission infrastructure, and state energy policies.

Some Superchargers in premium locations—airports, luxury shopping centers, or high-demand urban areas—charge premium rates even within the same state. A Supercharger at a rural highway rest stop in Texas might charge $0.26 per kWh, while a Supercharger in downtown Austin charges $0.38 per kWh at the same time of day.

Tesla publishes a map showing Supercharger locations and current pricing. Before you plan a road trip, you can check the app to see what rates you will encounter in different regions. This helps you decide whether to charge more at cheaper locations or charge less frequently and pay higher rates at fewer stops.

Monitoring Your Charging Costs in the Tesla App

The Tesla app shows your Supercharging history, including the cost of each session, the amount of energy added, and the per-kWh rate you paid. Open the app, go to the Charging tab, and scroll through your past sessions. This data helps you understand your actual charging patterns and costs over time.

Before you plug in at a new Supercharger, the app displays the current rate and a price history graph showing how rates have fluctuated over the past week or month. If you see that rates are typically lower at 2 a.m. than at 6 p.m., you can plan to charge during the cheaper window. The app also shows estimated charging time and cost for a full charge or a charge to 80%, so you know what to expect before you start.

Frequently Asked Questions

Do I pay differently if I have a Tesla subscription or membership?

Tesla does not offer a subscription that reduces Supercharger rates. All owners pay the same per-kWh rate at each Supercharger, regardless of vehicle model or account type. Some older Model S and Model X owners have grandfathered free Supercharging from their original purchase, but new owners pay the posted rate.

What happens if I charge to 100% instead of 80%?

Charging to 100% takes significantly longer and costs more because the charging speed drops sharply above 80%. You might add only 15–20 kWh in the time it takes to add 30 kWh from 50% to 80%. Most owners stop at 80% for road trips and charge to 100% only when necessary, such as before a long drive with few Superchargers.

Can I see Supercharger prices before I arrive?

Yes. Open the Tesla app, tap the Charging tab, and view the map of nearby Superchargers. Each location shows the current per-kWh rate and a price history graph. You can also see rates for Superchargers along your planned route before you leave home.

Is Supercharging cheaper at night?

Usually, yes. Off-peak rates (typically midnight to 6 a.m.) are 20% to 40% lower than peak rates (4 p.m. to 9 p.m.). If you are charging during a road trip and can wait until late evening or early morning, you will pay less. However, home charging is still cheaper than any Supercharger rate, even off-peak.

How much does it cost to charge a Model X for a 1,000-mile road trip?

A 1,000-mile trip typically requires three to four Supercharger stops. Charging from 20% to 80% at each stop adds roughly 60 kWh per stop. At an average rate of $0.35 per kWh, three stops cost about $63, and four stops cost about $84. Actual costs vary based on regional pricing and the time of day you charge.