EV kWh per 100km

EV Energy Consumption (kWh per 100 km)

For an electric car, efficiency comes down to kWh / 100 km = (energy used × 100) ÷ distance, and a smaller number is the one you want. It works the same way fuel economy (L/100 km) does, which means you can put two cars side by side no matter how big the battery is.

In day-to-day driving you'll see a BYD Dolphin sit around 14 kWh/100km, a Tesla Model 3 somewhere between 14 and 17, and a Hyundai Ioniq 5 closer to 16–20. Big SUVs and luxury sedans like the Mercedes EQS or Audi e-tron drink more, 22–28. Just keep in mind that the published number depends on which cycle was used. EPA (US) runs conservative, WLTP (Europe) lands in the middle, the old NEDC was optimistic, and Brazil reports through PBE Veicular (INMETRO).

Applications

Pull your real range out of a driving log, compare two EVs on equal terms, or work out what charging adds to the monthly electricity bill. It also helps when you're sizing a home solar PV array for the car, or watching for a drop in efficiency after the battery has been serviced.

FAQ

What raises consumption most? Highway speed is the big one, since aerodynamic drag climbs with v². After that it's a heavy load, running the A/C or heat pump, cold weather that can cost you 20 to 30% of your range, and a heavy right foot.

Why is the EPA figure lower than WLTP? EPA cycles push harder, with sharper acceleration and faster highway runs. WLTP goes easier on the car, so the same model ends up with a longer rated range under WLTP.

Does regenerative braking lower kWh/100km? It does. One-pedal driving in stop-and-go city traffic can shave 10–20% off consumption compared with sticking to the highway.