# MPGe to kWh per 100 Miles Converter

> Convert Miles Per Gallon Equivalent (MPGe) to kilowatt-hours per 100 miles for electric vehicle energy consumption comparison

**Category:** Conversion
**Keywords:** mpge, kwh per 100 miles, electric vehicle, ev efficiency, energy consumption, mpge converter
**URL:** https://complete.tools/mpge-to-kwh-100-miles-converter

## How it works

The conversion uses the EPA's standard that 33.705 kWh of electricity equals the energy content of one gallon of gasoline. The formula is: kWh per 100 miles = 3370.5 / MPGe. This is derived from 100 / (MPGe / 33.705), which calculates how much energy is needed to travel 100 miles based on the MPGe rating. For example, a vehicle rated at 100 MPGe would consume 33.705 kWh per 100 miles.

## Who should use this

Electric vehicle owners comparing efficiency between different EVs, prospective EV buyers evaluating energy costs, fleet managers calculating operating expenses for electric vehicles, charging station operators estimating usage patterns, and energy analysts comparing EV efficiency across different models and manufacturers. This conversion is particularly useful when comparing EVs to each other, as kWh per 100 miles directly relates to electricity costs.

## Worked examples

Example 1: A Tesla Model 3 rated at 132 MPGe. Using the formula: kWh/100 mi = 3370.5 / 132 = 25.5 kWh per 100 miles. This means driving 100 miles would require approximately 25.5 kWh of electricity.

Example 2: A Rivian R1T truck rated at 70 MPGe. Calculation: 3370.5 / 70 = 48.2 kWh per 100 miles. The larger vehicle requires nearly twice as much energy per 100 miles compared to the compact sedan.

Example 3: A Hyundai Ioniq 6 rated at 140 MPGe (one of the most efficient EVs). Calculation: 3370.5 / 140 = 24.1 kWh per 100 miles. At $0.15 per kWh, this equals about $3.62 per 100 miles of driving.

Example 4: Comparing two vehicles - a 120 MPGe car (28.1 kWh/100 mi) vs an 80 MPGe SUV (42.1 kWh/100 mi). The SUV uses 50% more energy for the same distance.

## Limitations

The conversion assumes ideal conditions based on EPA testing. Real-world efficiency varies significantly based on driving conditions, temperature, speed, terrain, HVAC usage, and driving style. Cold weather can reduce EV range by 20-40%, meaning actual kWh consumption per 100 miles will be higher. Highway driving at higher speeds typically consumes more energy than city driving due to increased aerodynamic drag. The tool provides a baseline for comparison but should not be used for precise trip planning without considering these factors.

## FAQs

**Q:** Why does the EPA use 33.705 kWh as the equivalent of one gallon of gasoline?


**A:** This value represents the total energy content in a gallon of gasoline (about 120,000 BTU). It allows for a direct energy-to-energy comparison between electric and gasoline vehicles, regardless of the efficiency differences in how that energy is used.


**Q:** Is a higher or lower kWh per 100 miles better?


**A:** Lower is better. A lower kWh/100 mi value means the vehicle uses less electricity to travel the same distance, resulting in lower operating costs and longer range per charge.


**Q:** How does kWh per 100 miles relate to operating costs?


**A:** Multiply kWh/100 mi by your electricity rate to find cost per 100 miles. For example, 30 kWh/100 mi at $0.15/kWh = $4.50 per 100 miles, compared to a 30 MPG gasoline car at $3.50/gallon = $11.67 per 100 miles.


**Q:** Why is miles per kWh also useful?


**A:** Miles per kWh is analogous to MPG for gasoline cars - it tells you how far you can go on a unit of energy. Many EV owners prefer this metric because it directly shows range capability per unit of charge.

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