1. What is Watts per Mile?

Watts per mile (W/mile) is a measure of how much power an electric vehicle uses to travel one mile. It's directly related to kWh per mile but expressed in different units (1 kWh = 1000 Wh).

2. How Does the Conversion Work?

The conversion formula is simple:

Where:

• \( kWh/mile \) — Energy consumption in kilowatt-hours per mile
• 1000 — Conversion factor (1000 watts = 1 kilowatt)

Example: 3.5 kWh/mile × 1000 = 3500 W/mile

3. Importance of Energy Efficiency in EVs

Details: Understanding energy consumption helps compare vehicle efficiency, estimate range, and calculate charging costs. Lower W/mile values indicate more efficient vehicles.

4. Using the Calculator

Tips: Enter the energy consumption value in kWh/mile (typical values range from 0.2 to 0.5 kWh/mile for efficient EVs). The calculator will instantly show the equivalent in W/mile.

5. Frequently Asked Questions (FAQ)

Q1: What's a good W/mile value for an EV?
A: Most efficient EVs achieve 200-300 W/mile. 3500 W/mile would be extremely high for a passenger vehicle.

Q2: How does this relate to MPGe?
A: MPGe (miles per gallon equivalent) is another efficiency metric that can be calculated from W/mile values.

Q3: Why use W/mile instead of kWh/mile?
A: Watts are sometimes preferred for power calculations or when comparing to other power measurements.

Q4: Does this account for charging losses?
A: No, this is the vehicle's consumption only. Charging typically adds 10-15% more energy use.

Q5: How can I reduce my EV's W/mile?
A: Drive at moderate speeds, minimize rapid acceleration, use regenerative braking, and reduce accessory use.