Gasoline Cost Calculator
Calculate fuel purchase and storage expenses for power equipment, lawn mowers, outboard marine engines, and fuel cans, including stabilizer additives.
Fuel Volume & Storage Treatment
Gasoline Expense & Energy Equation
Total Cost = (Gallons × Price per Gallon) + Fuel Stabilizer + Can Costs | Energy = Gallons × 114,000 BTU/Gal- Gallons Purchased: Volume of regular or non-ethanol unleaded gasoline.
- Fuel Stabilizer: Preservative treatment (e.g. Sta-Bil) essential for storing fuel past 30 days in small carburetors.
- Thermal Energy Content: Standard unleaded gasoline contains approx 114,000 BTU (33.41 kWh equivalent) per US gallon.
Step-by-Step Worked Example
Calculation Steps:
How to Use This Calculator
Assumptions & Limitations
- Uses standard US regular unleaded gasoline energy density (114,000 BTU/gallon).
- Assumes US customary liquid gallons.
Frequently Asked Questions
Why should I use non-ethanol gasoline in small engines and generators?
Standard E10 pump gas contains 10% ethanol, which attracts atmospheric moisture, degrades rubber carburetor seals, and phase-separates within 30 to 90 days. Non-ethanol gasoline (rec fuel) prevents gumming and carburetor corrosion in stored power equipment.
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