Gas Mileage Calculator

Calculate your vehicle's fuel efficiency in MPG, L/100km, or km/L. Track fuel consumption, determine cost per mile, and compare efficiency across different vehicles.

Distance Traveled
Fuel Used
Fuel Price (Optional)
Trip Cost (Optional)
Fuel Efficiency (MPG): 25.0 MPG
Fuel Efficiency (L/100km): 9.4 L/100km
Fuel Efficiency (km/L): 10.6 km/L
Cost per Mile: $0.14
Cost per Kilometer: $0.09
Efficiency Rating: Average

Fuel Efficiency Comparison

Vehicle Type Typical MPG L/100km Rating
Hybrid Cars 40-50+ 4.7-5.9 Excellent
Compact Cars 28-35 6.7-8.4 Good
Midsize Cars 22-30 7.8-10.7 Average
SUVs 18-25 9.4-13.1 Average
Pickup Trucks 15-22 10.7-15.7 Below Average

Related Auto Calculators

Advanced Gas Mileage Analysis & Fuel Efficiency Engineering

Comprehensive Fuel Economy Measurement Systems

Advanced gas mileage analysis represents sophisticated automotive engineering methodology that quantifies vehicle fuel consumption efficiency through precision measurement protocols. This comprehensive evaluation framework integrates distance metrics with fuel utilization data to establish accurate performance ratings critical for vehicle optimization, economic planning, and environmental impact assessment across diverse operational scenarios.

Professional Calculation Methodology Framework

The fundamental algorithmic approach for fuel efficiency determination employs precision engineering principles:

Fuel Efficiency Rating = Distance Traveled ÷ Fuel Volume Consumed
Alternative: Consumption Rate = Fuel Volume ÷ Distance × Standardized Factor

Critical Performance Variables & Engineering Factors

Powertrain Configuration Impact

Operational Environment Considerations

International Measurement Standards & Protocols

North American Standards (MPG)

Miles Per Gallon represents the imperial measurement standard quantifying distance capability per fuel volume unit. Enhanced MPG ratings indicate superior fuel efficiency performance, reduced operational costs, and improved environmental sustainability metrics.

International Metric Standards (L/100km)

Liters per 100 kilometers represents the global standard for fuel consumption measurement, indicating fuel volume requirements for standardized distance travel. Lower L/100km values demonstrate enhanced efficiency performance and reduced environmental impact.

Alternative Measurement Protocols

Advanced Vehicle Technology Integration

Engine Management Systems

Aerodynamic Engineering Optimization

Professional Efficiency Optimization Strategies

Maintenance Protocol Impact

Operational Technique Optimization

Professional Automotive Engineering Applications

Advanced gas mileage calculation systems serve fundamental roles in automotive engineering, providing essential data for vehicle development, performance optimization, and environmental compliance. Whether conducting comparative fuel economy analysis, implementing efficiency enhancement programs, or developing eco-friendly transportation solutions, sophisticated fuel efficiency measurement provides critical engineering data for informed automotive decision-making and sustainable transportation development.

L/100km = (Fuel Used × 100) ÷ Distance Traveled

Steps to Calculate Your Vehicle's MPG

  1. Fill Your Tank: Start with a full tank of gas
  2. Record Odometer: Note your starting mileage
  3. Drive Normally: Use your vehicle as usual
  4. Refill Tank: Fill up again and record gallons added
  5. Calculate Distance: Subtract starting from ending mileage
  6. Divide: Distance ÷ Gallons = MPG

Understanding Fuel Efficiency Units

Miles Per Gallon (MPG)

Used primarily in the United States, MPG indicates how many miles a vehicle can travel using one gallon of fuel. Higher numbers indicate better fuel efficiency.

Liters per 100 Kilometers (L/100km)

The international standard for fuel consumption, L/100km shows how many liters of fuel are needed to travel 100 kilometers. Lower numbers indicate better efficiency.

Kilometers per Liter (km/L)

Similar to MPG but using metric units, km/L shows how many kilometers can be traveled per liter of fuel.

Factors Affecting Gas Mileage

Vehicle Factors

Driving Factors

Environmental Factors

Improving Your Gas Mileage

Driving Techniques

Vehicle Maintenance

Gas Mileage by Vehicle Category

Economy Cars

Small, lightweight vehicles typically achieve 30-40+ MPG, making them ideal for commuting and city driving.

Hybrid Vehicles

Combining electric motors with gasoline engines, hybrids can achieve 40-60+ MPG, especially in city driving.

SUVs and Trucks

Larger vehicles typically achieve 15-25 MPG due to their size, weight, and often more powerful engines.

Real-World vs EPA Ratings

EPA fuel economy ratings provide standardized comparisons, but real-world mileage often differs due to:

Cost Benefits of Better Gas Mileage

Improving your vehicle's fuel efficiency provides several financial benefits:

Whether you're tracking your current vehicle's efficiency, comparing cars for purchase, or working to improve your fuel economy, understanding gas mileage calculations helps you make informed decisions about transportation costs and environmental impact.