PRECISION AT THE PUMP

Ethanol Blend Calculator

Your fuel. Your target. Your next fill-up.

Your vehicle

01

As indicated by looking at your fuel tank level gauge

%

The slider moves in 10% increments. For a more precise fuel level, type a percentage in the field above.

Estimated actual fuel level 45%

Includes a 5 percentage-point gauge allowance.

Your blend

02
E
E

Fuel you’re adding · At the pump

%
%
Calculated for a full tank · US gallons

E85 and gasoline blend calculator

IMW Tools by IMWtuned estimates how much E85 and gasoline to add to reach your target ethanol content at a full tank. Enter your current fuel level, current ethanol content, target, and the ethanol percentage of each fuel at the pump.

How to use this ethanol calculator

Select a Honda or Acura tank preset, or enter a custom tank capacity in US gallons. Presets include Civic Type R, Civic Si, Civic 1.5T, Accord 2.0T, Integra Type S, NSX, RDX, and TLX 2.0T. Use the target specified for your calibration; the calculator does not determine which ethanol blend your vehicle can safely use.

If there is not enough tank space to reach your target, the calculator shows the achievable ethanol range instead of a fuel recipe. Pump ethanol content, tank capacity, and fuel-gauge readings can vary, so verify your inputs and available space before fueling.

This free calculator works without an account. Add it to your phone’s Home Screen for easy access at the pump.