Step-by-step instructions
- Enter or select Greywater reused.
- Enter or select Total water used.
- Tap Calculate.
- Review the result shown directly below the calculator.
Calculate greywater reuse percentage calculator from greywater reused and total water used.
Calculate greywater reuse percentage calculator from greywater reused and total water used.
Greywater reused is divided by Total water used and the result is multiplied by 100 to express the relationship as a percentage.
For example, if Greywater reused is 25 and Total water used is 100, the calculated result is 25%.
The result is a percentage. A higher or lower percentage has different meaning depending on the calculator, so compare it with the goal, limit, benchmark, or historical value relevant to your situation.
Tip: Keep all values in compatible units and use values from the same time period when the calculator compares two amounts.