EV Efficiency and MPGe Guides

Understand MPGe, kWh/100 mi, charging losses, range changes, and fair cost comparisons.

Quick Summary This hub helps you translate EV labels into practical decisions. It explains what the metrics mean, where assumptions differ from real-world use, and how to compare gas and EV costs with consistent units.

EV and MPGe Guides

Use these articles when shopping EVs, estimating charging costs, or comparing fuel bills between powertrains. They are designed to keep assumptions explicit so cost comparisons stay fair.

Beyond Tailpipe: Comparing Upstream Emissions with FuelEconomy.gov Tailpipe emissions are only part of a vehicle's emissions footprint. FuelEconomy.gov provides a "Beyond Tailpipe Emissions Calculator" that combines tailpipe emissions with upstream... Charging Losses and MPGe: What the EPA Test Accounts For "Charging losses" are the difference between electricity drawn from the outlet and electricity stored in (and later delivered from) the battery. EPA's plug-in vehicle testing overview... EPA Electric Vehicle Label Explained (MPGe, kWh/100 mi, Range) The EPA’s electric vehicle (EV) label is designed to make EVs comparable — to each other and to gas cars. The label explains MPGe , kWh per 100 miles , and driving range , along... EPA Fuel Economy and EV Range Testing: The 5-Cycle Method in Plain English The MPG numbers on an EPA label come from standardized test procedures. EPA explains that modern label values reflect a set of tests and adjustments intended to better represent... EPA Plug-in Hybrid Label Explained (MPGe, Gas MPG, Range) Plug-in hybrids (PHEVs) can run on electricity for some miles and then switch to gasoline. EPA provides official plug-in hybrid label documentation (interactive and text versions) to... EV Charging Cost Per Mile: How to Calculate It (Home and Public) To estimate EV charging cost per mile, you need two inputs: energy use (often shown as kWh per 100 miles ) and your electricity price (in $/kWh). Multiply them (with the right unit... EV Efficiency Metrics: MPGe, kWh/100 Miles, Range, and Cost EV shopping gets easier once you separate four ideas: energy efficiency (MPGe), electricity use (kWh per 100 miles), range (miles per charge), and cost (dollars per mile). The EPA label... EV Range in Cold Weather: What Changes and How to Plan Cold weather can reduce EV range because winter driving often requires cabin heat and changes battery and road conditions. FuelEconomy.gov provides a cold-weather baseline and EV tips... Gas vs Electric Cost Per Mile: How to Compare Fairly A fair “gas vs EV” comparison uses the same unit on both sides: dollars per mile (or dollars per 100 miles). For gasoline, that’s gas price divided by MPG. For EVs, it’s electricity... kWh per 100 Miles Explained: The EV Metric That Maps to Cost For electric vehicles, kWh per 100 miles is a fuel-consumption metric — just like gallons per 100 miles for gasoline cars. Lower kWh/100 miles means the vehicle uses less... What Is MPGe? How Electric Car Efficiency Is Measured MPGe means miles per gallon equivalent . It is used for plug-in electric vehicles (including battery-electric vehicles and plug-in hybrids when running on electricity) to express energy...

Need a direct cost comparison? Use the Gas vs Electric Car Cost Calculator with your annual miles and local energy prices.