Heater & Chiller Sizing Calculator
- Estimate the size (power) of heater and chiller required to maintain an aquarium within a specified temperature
range.
Manual pH Calibration Calculator
- Attempts to correct the pH reading of an uncalibrated, uncalibratable, or improperly calibrated digital
pH meter.
Substrate Calculator
- Estimate the volume and weight of substrate needed for a sand bed of a given height.
System Volume Calculator
- Estimate the volume of your aquarium system by performing a controlled salinity dilution.
- This can be used for freshwater systems as well, if you are utilizing aquarium salts.
Tank Volume Calculator
- Estimate the volume of water different shapes of aquariums with sides of uniform thickness can hold.
Tank Weight Calculator
- Estimate both the full and empty weights of a rectangular aquarium.
Reverse-Osmosis & Deionization Calculators
CO2 DI Resin Depletion Calculator
- Estimate what percentage of a deionization (DI) filter is being depleted by carbon dioxide (CO2) alone.
Alkalinity Conversion Calculator
- Convert alkalinity between milliequivalents-per-liter (meq/L), carbonate hardness (KH, dKH), and
parts-per-million (ppm).
Flow Rate Conversion Calculator
- Convert between various units of flow rate (gallons-per-hour, milliliters-per-minute, and so on).
Salinity Conversion Calculator
- Convert salinity between parts-per-thousand (ppt), relative specific gravity (sg), and units of
conductivity (mS/cm).
Salinity Correction Calculator
- Correct a relative specific gravity (sg) measurement taken with a non-temperature-correcting hydrometer.
Reverse Salinity Correction Calculator
- Given a true salinity, estimate the relative specific gravity (sg) that a non-temperature-correcting hydrometer will
observe.
Jose Dieck's Reef Chemistry Calculator
- Estimate the neccessary calcium, alkalinity, or magnesium additions required to reach a target level.
- Click here for the enhanced flash version.
Kalk Contribution Calculator
- Estimate the contribution of a kalk solution towards the calcium and alkalinity of a system.
Marine CO2 Level Calculator
- Estimate the carbon dioxide (CO2) concentration given a few relevant parameters.