Ethanol Calculator - E85 Fuel

Ethanol Calculator helps you determine exactly how much pure ethanol to add to your fuel tank to reach your desired ethanol ratio. KEY FEATURES: - Fill Tank mode: enter the total you want and see exactly how much E85 and gas to pump - Mix with E85 or a custom blend, not only pure ethanol - Liters, US gallons and UK gallons - Calculate required ethanol amount instantly - Preset buttons for E10, E20, E25, E30, E50, E85 - Buying gas too? Enter it and still hit your target - Real-time results as you adjust sliders - Dark & Light mode support - Available in 30 languages PERFECT FOR: - Flex fuel vehicle owners - E85 enthusiasts & tuners - Race fuel blending - Biofuel mixing calculations Simply enter your current fuel amount, current ethanol percentage, and target ethanol percentage. The app instantly calculates how much pure ethanol you need to add. Buying gas as well? Enter how much and the app tells you how much ethanol to add on top to land exactly on your target blend. Note: Calculations are based on mathematical formulas using 100% pure ethanol as reference.