Enter the total amount of bleach (mL) and the total amount of water (mL) into the Bleach to Water Ratio Calculator. The calculator will evaluate and display the Bleach to Water Ratio. 

Bleach to Water Ratio Formula

The following formula is used to calculate the Bleach to Water Ratio. 

BWR = B / W

  • Where BWT is the Bleach to Water Ratio ( )
  • B is the total amount of bleach (mL) 
  • W is the total amount of water (mL) 

How to Calculate Bleach to Water Ratio?

The following example problems outline how to calculate Bleach to Water Ratio.

Example Problem #1:

  1. First, determine the total amount of bleach (mL). 
    • The total amount of bleach (mL) is given as: 30.
  2. Next, determine the total amount of water (mL). 
    • The total amount of water (mL) is provided as: 150.
  3. Finally, calculate the Bleach to Water Ratio using the equation above: 

BWR = B / W

The values given above are inserted into the equation below and the solution is calculated:

BWR = 30 / 150 = 20.00 ( )


Example Problem #2: 

For this problem, the variables required are provided below:

total amount of bleach (mL) = 80

total amount of water (mL) = 900

Test your knowledge using the equation and check your answer with the calculator above.

BWR = B / W = ?