Real-World MPG Calculator Calculator
Frequently Asked Questions
Why is my real-world MPG different from EPA ratings?
Real-world MPG is typically 10-20% lower than EPA ratings due to: actual driving conditions (traffic, weather, terrain), driving habits (speed, acceleration), vehicle load, air conditioning use, and maintenance condition. EPA ratings are laboratory-tested under ideal conditions.
How can I improve my real-world MPG?
Improve MPG by: driving at steady speeds (55-65 mph optimal), avoiding aggressive acceleration/braking, reducing vehicle load, maintaining proper tire pressure, using cruise control on highways, reducing air conditioning use, and keeping up with maintenance (oil changes, air filters).
Should I trust EPA MPG ratings when buying a car?
EPA ratings are a useful comparison tool but expect 10-20% lower real-world MPG. EPA ratings help compare vehicles, but actual MPG depends heavily on your driving conditions and habits. Use them as a guide, not an absolute guarantee.
How often should I calculate my real-world MPG?
Calculate MPG regularly (monthly or every few tanks) to track changes and identify issues. A significant MPG drop may indicate maintenance problems. Track over multiple tanks for accuracy, as single-tank calculations can vary with driving conditions.
