Electric cars are very efficient when compared to ICE (Internal Combustion Engine) cars. Nevertheless, the efficiency and range varies a lot from EV to EV.
To help you choose which electric car is more suitable for you, I made a table with NEDC efficiency and range figures.
However, take notice that NEDC (New European Driving Cycle), rates aren’t realistic, unfortunately we only have EPA rates for electric cars sold in the USA. The good news is that NEDC will be soon replaced by WLTP (Worldwide harmonized Light vehicles Test Procedure).