1. What is Miles per kWh?

Miles per kilowatt-hour (miles/kWh) is a measure of electric vehicle efficiency, showing how many miles the vehicle can travel using one kilowatt-hour of electrical energy. It's the EV equivalent of miles per gallon (MPG) for gasoline vehicles.

2. How Does the Calculator Work?

The calculator uses a simple formula:

Where:

• Miles Driven — Distance traveled in miles
• Energy Used — Electrical energy consumed in kilowatt-hours

Explanation: This calculation gives you the average efficiency over the measured distance, accounting for all energy consumption including climate control and other systems.

3. Importance of Efficiency Calculation

Details: Knowing your Tesla's efficiency helps estimate range, compare driving efficiency between trips, and understand how driving habits affect energy consumption.

4. Using the Calculator

Tips: For accurate results, reset your trip meter and energy consumption display before starting your measurement period. Use data from your Tesla's energy app for most precise calculations.

5. Frequently Asked Questions (FAQ)

Q1: What's a good miles/kWh for a Tesla?
A: Most Teslas average 3-4 miles/kWh in normal conditions. Higher numbers indicate better efficiency.

Q2: How does this compare to MPGe?
A: MPGe includes conversion factors to compare to gasoline vehicles, while miles/kWh is a direct efficiency measurement.

Q3: Why does my efficiency vary?
A: Factors like speed, temperature, terrain, climate control use, and driving style all affect efficiency.

Q4: How can I improve my Tesla's efficiency?
A: Drive at moderate speeds (55-65 mph), use regenerative braking, precondition while plugged in, and minimize HVAC use when possible.

Q5: Does this account for charging losses?
A: No, this measures only energy used while driving. Charging efficiency is separate and typically around 85-90%.