This calculator allows you to determine the amount of water needed to reach a desired concentration of a powdered substance.

To use this calculator, follow these steps:

1. Enter the “Powder Purity (%)” value in the corresponding field.
2. Enter the “Amount of Powder (grams)” in the corresponding field.
3. Enter the “Desired Concentration (%)” in the corresponding field.
4. Click on the “Calculate” button.
5. The result, the “Amount of Water (ml)”, will be displayed in the corresponding field.

If you want to clear the entered values and start over, you can click on the Clear button.