Free Online Fuel Consumption Calculator 2026
Knowing your car’s average fuel consumption is essential for planning trips, controlling expenses, and comparing the efficiency of different vehicles. Our fuel consumption calculator instantly shows how many miles your car gets per gallon and, optionally, the total trip cost.
Works for gasoline, diesel, or hybrid vehicles. Just enter the distance traveled and the fuel used.
Fuel Consumption Calculator
Calculate trip cost and your vehicle’s average consumption
How to Use the Fuel Consumption Calculator
- Distance traveled (miles) – Enter how many miles you drove since your last fill-up
- Fuel used (gallons) – Enter how many gallons were needed to cover that distance
- Price per gallon ($) – Optional. If entered, the calculator shows the cost per mile and total cost
- Click “Calculate”
Why Calculate Average Fuel Consumption?
- Savings: Identify if your car is using more fuel than normal
- Trip planning: Estimate fuel costs before you go
- Maintenance: Very high consumption may indicate engine or tire problems
- Comparison: Evaluate which vehicle is more fuel-efficient for your use
Reference Average Consumption
According to the EPA, the average fuel economy for new vehicles in the US is around 25-30 MPG for combined city/highway driving. If your car is significantly below these values, it may be time to check the maintenance.