1. What is Miles per Watt?

Miles per Watt-hour (mi/Wh) is a measure of energy efficiency for electric vehicles, indicating how many miles a vehicle can travel using one watt-hour of energy. It's similar to miles per gallon (MPG) for gasoline vehicles but for electric power consumption.

2. How Does the Calculator Work?

The calculator uses a simple formula:

Where:

• Miles Driven — Distance traveled by the vehicle
• Energy Consumed — Total electrical energy used during the trip

Explanation: This calculation gives you the vehicle's efficiency in terms of distance traveled per unit of energy consumed.

3. Importance of Efficiency Calculation

Details: Knowing your vehicle's efficiency helps in comparing different electric vehicles, estimating range, and calculating energy costs for trips.

4. Using the Calculator

Tips:

• Enter the total miles driven since last full charge
• Enter the total energy consumed in watt-hours (often available from your vehicle's display)
• Both values must be greater than zero

5. Frequently Asked Questions (FAQ)

Q1: What is a good miles per watt value?
A: Most electric cars get between 0.25 to 0.40 miles per watt-hour. Higher values indicate better efficiency.

Q2: How does this compare to MPGe?
A: MPGe (Miles Per Gallon Equivalent) is another efficiency metric that converts electric energy to gasoline energy equivalents. 1 MPGe ≈ 0.029 miles per watt-hour.

Q3: Can I use kilowatt-hours instead of watt-hours?
A: Yes, but you'll need to multiply the result by 1000 (since 1 kWh = 1000 Wh) or enter kWh values in the watt field.

Q4: Does driving style affect miles per watt?
A: Yes, aggressive acceleration, high speeds, and frequent braking can significantly reduce efficiency.

Q5: How can I improve my miles per watt?
A: Drive at moderate speeds, use regenerative braking, maintain proper tire pressure, and reduce unnecessary weight in the vehicle.