Home/Koi Tools/Product Label Math

Koi Product Label Math Calculator

Check one unit-compatible calculation using values copied from a current product label: amount in mL = target in mg/L × water volume in L ÷ product strength in mg/mL. This tool does not choose a product, target, treatment, or dose.
Critical Safety Warning: Arithmetic is not a treatment recommendation. Only continue when the current label states the target in mg/L and strength in mg/mL. Do not convert other units here. Consult a qualified aquatic veterinarian before making a fish-health treatment decision.

Label Values

Calculate your volume
The desired concentration you want to achieve
Read this directly from your product label
I confirm I have read and verified the product concentration from the product label, and I understand that incorrect values may result in harm to my fish.

Try this with your real data inside the app

Save results, get reminders, and share reports with your vet or dealer.

Frequently Asked Questions

Product concentrations vary between brands and formulations. The arithmetic is only valid when you copy the exact concentration and compatible units from the current label.

Use the current label section that states product strength. This calculator only accepts mg/mL and a target expressed in mg/L; if the label uses different units, do not convert or guess here—ask the manufacturer or a qualified aquatic veterinarian.

Do not guess or use this tool to choose it. Consult the current product label, the manufacturer, or a qualified aquatic veterinarian.

No. It performs one unit-compatible arithmetic calculation and cannot evaluate interactions, suitability, or safety. Ask a qualified aquatic veterinarian and follow current manufacturer directions.

Multiply gallons by 3.78541 to get liters, or multiply liters by 0.264172 to get gallons. Our Pond Volume Calculator can help with these conversions.

Also See

Pond Volume Calculator
Verify your pond volume
Quarantine Plan Generator
Observation and recordkeeping plan