Enter the waste diverted and the total waste into the Calculator. The calculator will evaluate the Waste Index. 

Waste Index Formula

WI = WD / TW * 100


  • WI is the Waste Index (%)
  • WD is the waste diverted
  • TW is the total waste

To calculate Waste Index, divide the waste diverted by the total waste, then multiply by 100.

How to Calculate Waste Index?

The following steps outline how to calculate the Waste Index.

  1. First, determine the waste diverted. 
  2. Next, determine the total waste. 
  3. Next, gather the formula from above = WI = WD / TW * 100.
  4. Finally, calculate the Waste Index.
  5. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

waste diverted = 40

total waste = 50


What is waste diversion?
Waste diversion refers to the process of diverting waste away from landfills or incinerators by means of recycling, composting, or other methods of waste management that aim to recover resources or convert waste into energy.

Why is calculating the Waste Index important?
Calculating the Waste Index is important because it provides a quantitative measure of the effectiveness of waste management practices. It helps in understanding the proportion of waste being diverted from landfills, which is crucial for environmental sustainability and resource conservation.

Can the Waste Index formula be used for all types of waste?
Yes, the Waste Index formula can be applied to various types of waste, including solid waste, food waste, and industrial waste. However, the accuracy of the calculation depends on precise measurement of the waste diverted and the total waste generated.

How can individuals and organizations improve their Waste Index?
Individuals and organizations can improve their Waste Index by implementing more effective waste management practices such as increasing recycling efforts, composting organic waste, reducing the generation of waste, and exploring waste-to-energy options. Education and awareness about waste reduction and recycling can also play a significant role in improving the Waste Index.