Fuel Efficiency Calculator
Calculate your vehicle's MPG, convert fuel efficiency units, and estimate trip fuel costs.
Your Fuel Efficiency
30.0 MPG
300 miles / 10 gallons
Efficiency Rating
Good
Unit Conversions
km per Liter12.75 km/L
Liters per 100km7.84 L/100km
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Editorial Note
MyCalcBuddy Editorial Team
This page is maintained as an educational calculator reference.
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Formula Source: Standard Mathematical References
by Various
🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.