Chemical to water
Select this when the directions say one part chemical is added to a stated number of parts water, such as 1:100.
Free workplace tool
Commercial Cleaning Chemical Dilution & Cost Calculator
Calculate chemical quantities, water requirements, working-solution volume and estimated cost per cleaning task.
Simple calculations
Understand the true cost of concentrated chemicals
Choose the dilution format shown on your product directions, enter the container cost and nominate the volume used for each cleaning task. Results update automatically.
Your results
Dilution and cost summary
Estimated cost per task
$0.00
Based on 0.75 L of working solution
Chemical for selected batch
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Water for selected batch
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Working solution per container
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Cost per working litre
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Cost of selected batch
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Tasks per container
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Chemical used per task
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Effective concentrate percentage
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Important:
This calculator provides mathematical estimates only. Always follow
the product label, Technical Data Sheet and Safety Data Sheet.
How it works
Choose the dilution format carefully
Dilution instructions are not always expressed in the same way. Select the option that matches the wording used by the manufacturer.
Chemical in finished solution
Select this when one part chemical is included within the stated total number of parts in the prepared solution.
Millilitres per litre
Use an mL/L option when the directions provide a measured chemical dose for each litre of water or prepared solution.
Cost control
Compare concentrates using cost per working litre
The purchase price of a chemical container does not show its true cost in use. A concentrated product may create hundreds of litres of working solution when used at the recommended dilution.
Calculating cost per working litre makes it easier to compare products with different container sizes, concentrations and purchase prices.
Read the complete dilution guide
Workplace safety
Use the calculator with approved product directions
Never use a general calculator result instead of the manufacturer’s instructions. Confirm surface suitability, PPE, contact time, rinsing requirements and the correct mixing method before use.
Prepared solutions should be kept in compatible, correctly labelled containers and handled according to workplace procedures.
View product resources
Frequently asked questions
Chemical dilution calculator FAQs
What does a 1:100 dilution mean?
It may mean one part chemical to 100 parts water or one part chemical within 100 total parts of finished solution. Check the product directions and select the matching option in the calculator.
How do I calculate cost per use?
Enter the concentrate container size, purchase price and the amount of working solution used for the task. The calculator determines the working-solution yield and applies the cost to your nominated task volume.
Does using more chemical improve cleaning?
Not necessarily. Over-concentration can increase costs, leave residue and potentially affect surfaces. Use the concentration specified for the task and product.
Can this replace the product label or TDS?
No. This tool provides mathematical estimates only. The product label, Technical Data Sheet and Safety Data Sheet must always take priority.
Need help selecting a system?
Improve chemical consistency and cost control
Talk to Woollahra Group about concentrated chemicals, dilution reviews and closed-loop dispensing solutions.