Calculadora de Produto de Plástico Residual
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
Formula
Resíduo = produção × (1 − reciclagem%); oceano ≈ resíduo × 0,03
About this calculator
This calculator estimates the amount of residual plastic generated from a production volume, considering the recycling rate. The calculation is simple: waste = production × (1 − recycling%). Additionally, a secondary estimate calculates the fraction that may reach the ocean, assuming that about 3% of total plastic waste leaks into the marine environment. This approximation is based on global studies on mismanaged waste.
You can use this tool to understand the environmental impact of your plastic production or consumption. For example, if a company produces 1000 tons of plastic and recycles 20%, the waste generated is 800 tons, of which approximately 24 tons may end up in the ocean. This helps visualize the importance of increasing recycling and reducing waste.
Important precautions: the recycling rate must be entered as a percentage (e.g., 20 for 20%). The model assumes that all non-recycled waste is discarded, but in practice some may be incinerated or sent to landfills with lower leakage risk. The ocean estimate is a global average and may vary depending on location and waste management infrastructure.
This calculator is useful for educators, students, environmental activists, and sustainability professionals who want to quickly quantify the impact of plastic waste. Remember that results are estimates and do not replace detailed waste audits.
Frequently asked questions
What does the ocean plastic estimate mean?
It is an approximation based on studies indicating that about 3% of global plastic waste reaches the ocean. This value may vary by region and waste management practices.
How should I enter the recycling rate?
Enter a number between 0 and 100, representing the percentage of plastic recycled. For example, for 20% recycling, type 20.
Can I use this calculator for any type of plastic?
Yes, it works for any type of plastic, but the actual recycling rate may vary depending on the material and local infrastructure.
Does the result consider incineration or landfill?
No. The calculation assumes all non-recycled waste is discarded, without distinguishing between incineration, landfill, or leakage. The ocean estimate is a global average.
Does this calculator replace a professional waste audit?
No. It provides a quick educational estimate, but does not replace a detailed analysis with specific data from your operation.