OneTool

Fuel Blend Cost Calculator

Weighted average price for two-fuel mixes.

Fuel A
Fuel B
  • Mix: 75.0% Regular / 25.0% Premium
  • Blended cost: $3.35 / gallon

What is this tool?

When mixing two fuels (or approximating an ethanol blend from component prices), blended unit cost is the volume-weighted average of each price. Enter prices and parts in the mix to see cost per gallon or liter.

How to use it

  1. Label each fuel and enter its price.
  2. Set mix parts (e.g. 3 and 1 for a 3:1 blend).
  3. Read blend percentages and blended unit cost.