Ethanol vs Gasoline Calculator
Find out which fuel is more cost-effective: ethanol or gasoline. Enter the prices and see which is better for your flex-fuel car.
E/G ratio
Break-even threshold
70%
How does the calculation work?
Ethanol has lower energy content than gasoline — a flex-fuel car averages about 30% fewer km/L with ethanol. So ethanol is only worthwhile if it costs less than 70% of the gasoline price.
Regra: se Preço Etanol ÷ Preço Gasolina < 0,70 → etanol compensa. Caso contrário, use gasolina.
* The exact ratio may vary by vehicle model (±2%). Consult the owner's manual.
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