# Calculadora de Combustível (ChatGPT App)

> Ethanol or gasoline?

- Type: app
- Publisher: Emerick Consultoria
- Categories: Finance
- Website: https://chatgpt.com/plugins/plugin_asdk_app_6a510ec2e83c8191a9b6239582c7a4e0
- Open in ChatGPT: https://chatgpt.com/plugins/plugin_asdk_app_6a510ec2e83c8191a9b6239582c7a4e0
- Version: 1.0.0
- Listed: 2026-10-04

## About

Find out instantly whether it's worth filling up with ethanol (alcohol) or gasoline. You enter the price per liter of each fuel at your gas station and the calculator applies the 70% rule: if the ethanol price divided by the gasoline price is below 0.70, ethanol is worth it; otherwise, gasoline is the better choice. You can also enter each fuel's efficiency (km/l) for an even more precise cost-per-kilometer calculation. No sign-up and no personal data collected.

## How to use

1. **Add it in ChatGPT** Open Calculadora de Combustível in ChatGPT's Plugin directory (button above), select + to add it and sign in if asked.

2. **Use it in a chat** Type @ in the composer and pick Calculadora de Combustível, or start your message with its name. ChatGPT may also suggest it when it fits what you ask.

## Example prompts

- "Etanol está R$ 3,29 e a gasolina R$ 5,49. Qual compensa mais abastecer?"
- "Etanol a R$ 4,10 (faço 10 km/l) e gasolina a R$ 5,90 (faço 13 km/l). Qual sai mais barato por km?"
- "Explique como funciona a regra dos 70% para decidir entre álcool e gasolina."

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Source: https://chatgptplugins.directory/apps/calculadora-de-combustivel · Index: https://chatgptplugins.directory/llms.txt · Independent and community-run. Not affiliated with or endorsed by OpenAI. ChatGPT is a trademark of OpenAI.