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Cleaning Chemical Calculator
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Dilution Ratio Calculator

Turn a label dilution ratio into the exact ounces of concentrate and water for any container size, with the cost of that mix.

Inputs

Range: 1–512

Read the number after the colon on the product label. 64 means 64 parts of water to 1 part of concentrate.

This is the single most common source of a wrong mix. Check the label wording: "1:64 solution" and "1 oz per 64 oz of water" mean different things.

Range: 1–128 floz

A 32 fl oz spray bottle is the common case. Enter the volume of the container you are actually filling.

Range: 0–1,000,000 per gallon

Enter the current purchase price in US dollars for the unit shown.

Result

Concentrate to add
0.50 fl oz
Concentrate used
0.0039 gal
Cost of this mix
$0.07
Water to add
31.50 fl oz
Reading: what this result means for the job
An ordinary working dilution. The concentrate and water figures below are the ones to write on the bottle, and the working solution cost is the figure that compares this product with another.
Applicability limit
The mix follows the ratio, the convention and the container size entered. The convention is the important one: "1:64 solution" and "1 ounce per 64 ounces of water" are different mixes, and the tool uses the reading you selected rather than guessing. This is a planning figure for the values entered, not a measured result. Coverage rates, product yields and application rates are properties of a specific product, applicator and substrate, and the label or data sheet for the product you are using always takes precedence over the default here. The EPA-registered label governs. Using a registered antimicrobial inconsistently with its labeling is unlawful under 7 U.S.C. 136j(a)(2)(G), and 40 CFR 156.10(i)(2)(ii) requires every label to carry that statement. This tool does arithmetic; it does not approve a dilution, and it does not determine compliance.
Check before the job

Working

Concentrate to add
—
Water to add
—
Concentrate used
—
Cost of this mix
—

What to check

  • Read the ratio wording on the label rather than assuming the convention.
  • Check the concentrate price is per gallon and not per case.
  • Verify the mix on a test batch before filling a full tank.

Related calculators

A ratio on a label can mean one part concentrate in 64 parts of finished solution, or one part concentrate plus 64 parts of water. The two differ by 3% at 1:32 and by a full double dilution at 1:8, so this tool asks which one the label means and shows the reading it used.