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Reef calculators

Reef tank calculators connected to one tank record

Reef tank calculators are most useful sitting beside the logs they support. Reef Trak is the only reef app that connects every calculator (tank volume, water changes, salinity, dosing, pH balance, phosphate, ammonia, lighting) directly to your reef's actual history.

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Reef tank calculators for every reef keeping chore

Use built-in tools for the recurring math reef keepers face, the most complete calculator suite in any reef app.

Tank volume
Water changes
Salinity adjustments
Alkalinity, calcium, magnesium, pH, ammonia, phosphate, and lighting

Calculators that connect to the rest of your reef

Calculators are most useful when they sit beside logs, reminders, dosing history, and parameter trends, and Reef Trak is the only app that does this.

Use calculators during tank-side care
Tie results back to maintenance and dosing history
Review outcomes in detailed reports
Mobile and web friendly across every device

Related guides

Drill into the Reef Trak tools reef keepers search for most often.

Best reef tank app Our complete guide to what a reef tank app should do, and how Reef Trak compares to spreadsheets, generic loggers, and controller dashboards.

Reef Trak FAQ

What calculators are in Reef Trak?

Reef Trak includes the most complete reef calculator suite available: tank volume, water changes, salinity, alkalinity, calcium, magnesium, pH balance, ammonia, phosphate, and lighting. All in one app.