kWh100km

kWh per 100 kilometers (kWh/100km) is a metric used to express the energy efficiency of electric vehicles (EVs). It indicates how many kilowatt-hours of electrical energy the vehicle consumes to travel 100 kilometers. Lower values denote higher efficiency, and the metric is analogous to liters per 100 kilometers for internal combustion engines.

Measurement and scope can vary by testing cycle. Official figures are usually reported from standardized drive cycles such as WLTP or EPA, and refer to usable battery energy that powers the drivetrain, including losses in the motors and inverter. Climate control, auxiliary loads, driving style, terrain, vehicle weight, and battery state of charge all influence real-world results, which can differ from laboratory ratings.

Relation to range and calculation: The range of an EV can be estimated from the usable battery capacity (in kWh) and the kWh/100km figure. Roughly, range ≈ usable energy / (kWh/100km) × 100. For example, a 60 kWh usable pack with 15 kWh/100km would yield about 400 km of range under those conditions. Real-world range varies with speed, weather, and driving behavior.

Regional use and conversions: kWh/100km is commonly used in Europe and in many EV specifications. In North America, energy consumption is often shown as kWh per mile or as miles per kWh. To convert, multiply kWh/100km by 0.0161 to obtain kWh per mile, or take 100 divided by kWh/100km to estimate miles per 100 energy units.

Limitations: While useful for comparing efficiency, kWh/100km is cycle-dependent and should be understood as an indicative figure rather than an exact, constant value. Real-world results will vary.