Unofficial Tesla Model S Rated Range Survey
According to "Peter," Tesla Powertrain Systems Architect:

"Rated range = the car’s estimate of remaining energy / a fixed whpm. The fixed whpm is different for different vehicles (85kWh / 60kWh) and in different markets based on the regulatory test for that vehicle in that market."

Source:  http://www.teslamotors.com/forum/forums/calculation-rated-range

With enough answers to this survey, we should be able to figure out exactly how the Tesla Model S is converting remaining energy into "Rated Miles."

There are only four required responses, but supply as much data as you like.
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Enter Values Displayed by the Tesla Energy Application (Tap AVERAGE)
First, tap the AVERAGE Button.  Read the Average Wh/mi on the left.  Read the Projected Range on the right.  Enter the two values below as 3-digit numbers only.

The selected range (5, 15, or 30 miles) does not matter, but select the same range to answer both questions.
Average Wh/mi displayed by Energy application *
Enter as 3 digit number (Wh/mi)
Projected Range displayed by Energy application (must tap AVERAGE, it always resets to INSTANT!) *
Enter as 3 digit number (miles)
Enter Rated Range Displayed on the Instrument Panel
Make sure you have selected Rated vs. Ideal miles.

Tap CONTROLS > SETTINGS > UNITS & FORMAT and selected RATED instead of IDEAL.
Rated Range *
Enter as 1 to 3-digit number
Rated Range Display:
The rated range is the value displayed below the current speed.
Tesla Model S Type *
Select the model type based on the battery size and other options
Optional Questions
Your average Wh/mi displayed by the Trip Meter
Select CONTROLS -> Trips/Range to display the Trip Meter.  Enter the average value displayed for your LONGEST trip (in Wh/mi)
Software Version
Tap the Tesla "T" on the touch screen to display the software version
Clear selection
Tire Type
Clear selection
Market
The market for which your car is manufactured
Clear selection
Thank You!
Your current remaining energy in Wh is your average Wh/mi multiplied by your Projected Range, as displayed by the Energy App.

Divide your remaining energy by your Rated Range to determine the Wh/mi used to calculate your rated range.  It should be between 300 and 317 Wh/mi, but it seems to vary from vehicle to vehicle.

Bob W
Survey Author
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