Gas Mileage & Fuel Economy Calculator
Calculate MPG (Miles Per Gallon), Km/L, L/100km, and estimate total trip fuel cost.
- 100% free
- Private in browser
- No signup
- No watermarks
Fuel Economy
15 Km/L
35.3 MPG (US)
Consumption
6.7
Liters / 100 Km
Total Trip Cost
₹ / $ 2895
for 450 Kilometers
Cost per Distance
6.43
per Kilometer
Rate this tool
Be the first to rate — helps others and improves this page.
About Gas Mileage & Fuel Economy Calculator
Calculate your car or motorcycle fuel economy easily. Enter the distance traveled and fuel consumed to instantly find your MPG (Miles Per Gallon), Km/L, and Liters per 100km, alongside an accurate trip cost and cost-per-mile estimation.
How to use Gas Mileage & Fuel Economy Calculator
- Select your unit system: US/Imperial (Miles & Gallons) or Metric (Kilometers & Liters).
- Enter distance driven and fuel added/consumed.
- Enter the fuel price per unit to calculate total trip cost.
- Review your fuel efficiency metrics (MPG, Km/L, L/100km).
Key features
- Dual Unit Support: Miles & Gallons (US/UK) or Kilometers & Liters
- Calculates MPG, Km/L, and L/100km simultaneously
- Estimates total trip cost and cost per distance unit
- Compare city vs highway economy benchmarks
- 100% free and mobile-friendly
Frequently asked questions
- How do I manually calculate gas mileage?
- Fill your tank completely, reset your trip odometer, drive normally, refill the tank, and divide the miles driven by the gallons pumped.
- What is considered good gas mileage?
- For standard gasoline cars, over 30 MPG (approx 12.7 Km/L or 7.8 L/100km) is considered good fuel efficiency.