Difficult Conversions

I am getting poor range estimates. I am getting a warning message saying that I have a high electric consumption value in an unfamiliar metric (something like watts/km). I have set my set the app to 0.6 miles/kwh, which is about right (I am towing a large RV with a Lightning). I have looked all over the internet and can’t find a conversion. Please provide the proper conversion multiplier from miles/kwh to the metric you use in your warning message.