Estimate gallons of fuel and trip cost from distance, fuel economy and gas price.
Use the connected calculators in this build for related estimates without starting over.
Enter the requested values above and select Calculate. Change any input to compare scenarios.
A 300-mile drive at 30 MPG uses about 10 gallons. At $3.50 per gallon, estimated fuel cost is $35.
Real-world fuel economy varies with speed, weather, traffic, idling, vehicle load and driving style.
Estimate gallons of fuel and trip cost from distance, fuel economy and gas price.
Gallons needed = distance ÷ MPG. Fuel cost = gallons needed × price per gallon.
Yes. ERICH Calculators is free to use and no account is required.
See how formulas, sources and limitations are handled across ERICH Calculators.