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Electric car consumption: kWh/100 km and cost in 2026
Jun 19, 2026
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Electric Car Energy Consumption: How Many kWh per 100 km (and How Much It Costs) in 2026
Updated in June 2026. How much energy does an electric car really consume, and more importantly, how much does it cost on a daily basis? This is often the first question people ask before switching to electric, and the answer deserves more than just a single number. Consumption depends on the model, speed, season, and your driving style. Here’s an overview of the key figures to know in 2026—from basic calculations to the actual cost of a full charge, including variations on the highway and in winter.
How much energy does an electric car consume per 100 km?
On average, an electric car consumes between 15 and 18 kWh of electricity per 100 km in mixed driving conditions. A small city car can get down to around 13 to 14 kWh, while a large SUV can go beyond 20 kWh. This is energy-efficient, and above all, much cheaper to operate than a gasoline-powered car, since electricity remains more economical than fuel. But this average figure masks significant variations: the same model can consume anywhere from half to double the amount depending on whether it’s driving gently in the city or on a highway in winter.
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How to Read and Calculate Consumption in kWh/100 km
An electric vehicle’s consumption is expressed in kilowatt-hours per 100 kilometers, the equivalent of liters per 100 km for an internal combustion engine vehicle. To calculate it, divide the energy consumed by the distance, then scale the result to 100 km. Manufacturers provide a certified value based on the WLTP cycle, measured under ideal conditions. In real-world driving, expect 10 to 20% higher consumption during everyday use, and significantly more at high speeds. It’s therefore important to always distinguish between advertised fuel economy and actual fuel economy. Most cars display this data in real time on their onboard computer, which is a good way to track your progress as you drive.
Why You Pay a Little More Than What the Car Displays
Here’s a detail many people don’t know: the energy you pay for at the charging station is greater than what the motor actually uses. Between the charging station and the battery, some energy is lost as heat during the conversion of electricity. These losses account for about 10 to 15%, depending on the type of charging and the temperature. In practical terms, a car that displays 16 kWh per 100 km on its onboard computer actually consumes 18 to 19 kWh from the outlet. This is normal, and it explains the discrepancy sometimes observed between the car’s advertised consumption and the electricity bill. To compare like with like, it’s better to consider billed energy, not just displayed energy.
Average Consumption by Segment: The 2026 Table
Segment (example) | Indicative WLTP Consumption |
City car (Dacia Spring) | 12 to 16 kWh/100 km |
Compact car (Peugeot e-308) | 15 to 17 kWh/100 km |
Sedan (Tesla Model 3) | 14 to 17 kWh/100 km |
Family SUV | 17 to 21 kWh/100 km |
Large SUV or premium station wagon | 19 to 23 kWh/100 km |
Estimated values depending on the model. Source: Manufacturer technical specifications, accessed in June 2026.
City car, SUV, sedan: which one uses the most energy?
Size plays a major role in the equation. Two factors are particularly important: weight, which requires more energy to move, and aerodynamics, which is a key factor at high speeds. A lightweight, streamlined city car like the Dacia Spring averages around 12 to 14 kWh per 100 km. A well-designed sedan, such as the Tesla Model 3, remains fuel-efficient despite its size, averaging around 15 kWh. Conversely, a large electric SUV—tall and heavy—often exceeds 20 kWh, and consumption rises even further on the highway due to its wind resistance. If energy consumption matters to you, the combination of weight and aerodynamics is just as important as battery size.
Real-World Consumption by Scenario
In the city, at moderate speeds, an electric vehicle is in its element and uses little energy, aided by regenerative braking. It’s on the highway and in winter that the differences become more pronounced, as shown in this table for a typical sedan rated at around 16 kWh under WLTP.
Scenario | Approximate actual consumption |
City | 13 to 16 kWh/100 km |
Highway (80 to 90 km/h) | 15 to 18 kWh/100 km |
Highway (130 km/h) | 20 to 26 kWh/100 km |
Winter (around 0 °C) | +20 to +30% |
Highway in winter | up to +50 to +80% vs. WLTP |
Why energy consumption increases on the highway
The reason is physical: as speed increases, so does air resistance—and it increases with the square of the speed. In practical terms, going from 110 to 130 km/h increases fuel consumption by more than 25%. A sedan rated at 15 kWh under WLTP can thus exceed 20 kWh at 130 km/h. The good news is that easing off the accelerator by just a few km/h on long trips immediately translates to increased range and fewer stops.
Winter Energy Consumption: How Much Does It Increase?
Cold weather has two effects: it reduces battery efficiency and requires heating the cabin. Energy consumption then rises by 20 to 30% on average—and even more in extreme cold, where you can expect an additional 5 to 8 kWh per 100 km just for heating. Two habits can help minimize the impact: preheat the car while it’s still plugged in, and opt for a heat pump if your model offers one—it’s much more efficient than a simple electric heater.
From Energy Consumption to Actual Range
Energy consumption and range are two sides of the same coin: the more energy a car consumes, the faster it drains its battery. To estimate the real-world range, simply divide the battery’s usable capacity by the actual energy consumption. A 60 kWh battery combined with a consumption rate of 18 kWh per 100 km thus provides a range of about 330 km in real-world conditions—and significantly less on the highway in winter. That’s why the advertised range figures, calculated using the WLTP standard, should always be taken with a grain of salt. For more information, we cover this topic in detail in our guide toelectric vehicle range.
How much will 100 km cost in an electric car (vs. gasoline) in 2026?
This is the crux of the matter, and it all depends on where you charge. At home during off-peak hours, electricity costs around €0.16 per kWh under the regulated rate, and even less with a plan specifically for electric vehicles. At a public fast-charging station, expect to pay between €0.40 and €0.47 per kWh. When calculated per 100 km, the difference is significant, as detailed in our guide to charging costs.
Charging method (EV ~16 kWh/100 km) | Estimated price | Cost per 100 km |
Home, off-peak hours | Approximately €0.16/kWh | €2.50 to €3 |
Residential, off-peak EV plan | Approximately 0.13 €/kWh | €2 to €2.50 |
Public fast-charging station | 0.40 to 0.47 €/kWh | 9 to 13 € |
Gasoline (reference) | fuel | Approximately 11 € |
Sources: EDF regulated rate and public charging rates, June 2026. Actual costs vary depending on usage and the provider.
Over 15,000 km per year, charging at home during off-peak hours costs about 375 €, compared to nearly 1,650 € in fuel costs for an equivalent internal combustion engine vehicle. The savings exceed €1,200 per year and increase even further for frequent drivers. In other words, the higher upfront cost of buying an electric vehicle pays for itself all the faster the more you drive and the smarter you charge.
The cost of a long trip with fast charging
On a long trip, you’ll inevitably need to recharge along the way, at a higher rate than at home. That’s where your choice of network and subscription plan matters. At Electra fast-charging stations, charging starts automatically with Autocharge—no card or app required—and two subscription plans lower the price per kWh:
Electra+ Essential: €1.99/month with no commitment, a €0.10/kWh discount on every charge on the Electra network.
Electra+ Smart: €4.99/month with no commitment, a discount of €0.20/kWh on every charge on the Electra network.
Even when paying for fast charging, an electric trip is usually still cheaper than the same trip in a gas-powered car. Find Electra fast-charging stations on the map and view Electra’s pricing details.
How to Reduce Your Energy Consumption: Our Tips
Just a few habits are enough to lower your bill. Anticipate braking to make the most of regenerative braking, maintain a steady speed, ease off the gas on the highway, check your tire pressure, and limit the use of heating or air conditioning to what’s necessary. Over the course of a year, these habits can add up to several hundred kilometers of extra range—and just as many euros saved. Conversely, aggressive driving and high speeds can easily increase energy consumption by 30 to 40%. The most effective factor remains speed: on a long trip, driving at 120 rather than 130 km/h is sometimes enough to eliminate the need for a charging stop.
Frequently Asked Questions About Electric Car Range
How much energy does an electric car consume per 100 km?
Between 15 and 18 kWh on average in mixed driving conditions, ranging from 13 kWh for a city car to over 20 kWh for a large SUV.
How much does it cost to drive 100 km in an electric car?
About €2.50 at home during off-peak hours, and €9 to €13 at a public fast-charging station, compared to nearly €11 for gasoline.
What is the energy consumption on the highway at 130 km/h?
Often 20 to 26 kWh/100 km, significantly more than in the WLTP cycle. Increasing speed from 110 to 130 km/h raises energy consumption by more than 25%.
How much does energy consumption increase in winter?
By 20 to 30% on average, and even more in very cold weather, due to the heater and reduced battery efficiency.
Which electric car is the most fuel-efficient?
Small city cars, such as the Dacia Spring, which consume around 12 to 14 kWh/100 km, are the most fuel-efficient on the market.
Key Takeaways
An electric car consumes an average of 15 to 18 kWh per 100 km, but this figure varies significantly depending on speed and season. On the highway and in winter, energy consumption can jump by as much as 50% compared to the official cycle. When it comes to cost, electric cars have a clear advantage: even when paying for fast charging, 100 km usually costs less than driving on gas—and even less when charging at home during off-peak hours. The key is to adjust your driving style and choose your charging locations wisely.
To find Electra stations near you, download the app from the App Store or Google Play. And to reduce the cost of each charge,the Electra+ Smart subscription quickly pays for itself once you start driving regularly.
Written by Nicolas, Electra mobility expert
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