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Cleaning Chemical Calculator
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Sanitizer PPM Calculator

Work out how much concentrate is needed to reach a target parts per million, what that strength is in dilution terms, and whether the water temperature, pH and hardness are inside the limits the food code sets for that chemistry.

Inputs

The FDA Food Code 2026 sets different temperature, pH, hardness and contact-time conditions for chlorine, iodine and quat, and treats other sanitizers against their own EPA-registered labels. Choose the chemistry on the product label.

Range: 0.01–100 %

The active percentage printed on the label, not the target solution percentage. This calculator treats it as a volume fraction; use the label fluid-ounce dose when the percentage basis is mass or otherwise specified.

Range: 1–10,000

For chlorine, 50 to 200 mg/L is the usual sanitizing range and 1000 to 10000 mg/L is the usual disinfection range. Quat is typically 200 to 400 mg/L. The controlling figure is the adopted code and the product label.

Range: 0.25–100 gal

Enter the measured quantity in the unit shown.

Range: 32–212

Degrees Fahrenheit. FDA Food Code 2026 sets a minimum temperature per sanitizer and, for chlorine, per concentration and pH.

Range: 0–1,000

mg/L as calcium carbonate. FDA Food Code 2026 limits quat to water of 500 mg/L hardness or less unless the EPA label allows a higher hardness.

Range: 0–14

The pH of the make-up water. Iodine requires pH 5.0 or less unless its label states otherwise; chlorine uses the FDA Food Code 2026 pH 10 and pH 8 branches.

Range: 1–600 seconds

Actual time the solution remains on the food-contact surface. The FDA Food Code 2026 uses 10 seconds for chlorine, 7 seconds for a qualifying 50 mg/L chlorine solution, and 30 seconds for other chemical sanitizers.

Choose the option that matches the product label or the job scope.

Result

Concentrate to add
0.205 fl oz
Minimum contact time used by the check
10 seconds
Equivalent dilution ratio
625.0 : 1
Water to add
127.795 fl oz
Reading: what this result means for the job
The batch is mixed to the target concentration at the active percentage entered. Chlorine is temperature and contact-time dependent, so the mix is only part of the job: the Food Code sets minimum temperature and contact-time conditions, and the finished strength is verified with a test kit or other device rather than trusted from the arithmetic.
Applicability limit
For chlorine, the FDA Food Code 2026 § 4-501.114(A) sets minimum temperatures by concentration and pH: 25 to 49 mg/L needs 49 °C (120 °F); 50 to 99 mg/L needs 38 °C (100 °F) at pH 10 or less or 24 °C (75 °F) at pH 8 or less; and 100 mg/L needs 13 °C (55 °F). § 4-703.11(C) sets 10 seconds contact time, or 7 seconds for 50 mg/L at the matching temperature and pH condition. § 4-501.116 requires the concentration to be accurately determined with a test kit or other device used according to its instructions. The arithmetic treats the active percentage as a volume fraction; if the label gives a fluid-ounce dose or a different percentage basis, use that label instruction instead. This tool computes a mix; it does not confirm the product is a permitted sanitizer, the water is potable, or the solution passes a field test. 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
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Water to add
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Equivalent dilution ratio
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Minimum contact time used by the check
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What to check

  • Take the active ingredient percentage from the product label.
  • Confirm the target concentration against the adopted food code and the product label.
  • Verify the finished strength with the manufacturer-specified test kit or other device.
  • Check the water temperature, the pH and the hardness against the limits for the chemistry on the label.

Related calculators

Parts per million is the measurement used for food-contact sanitizer concentration, and the target comes from the adopted food code and the product label rather than from a house rule. The active ingredient percentage is needed as well, because a product at 12.5% and one at 5.25% are not interchangeable. The food code also sets temperature, contact-time, pH and hardness conditions by chemistry, so those inputs are on the form. This calculator does arithmetic and does not determine compliance; verify the finished solution with the manufacturer-specified test kit or other device.