Target Salinity Calculator
* Special thanks to Boomer from
www.reefcentral.com
for his help.
* Special thanks to Simon Huntington for the PPT <-> SG conversion algorithms.
This calculator creates a water-change schedule that can be followed to reach a target salinity in an aquarium. Note that some sources recommend that the "Maximum Safe Salinity of Make-Up Water" never appreciably exceed 35 ppt.
Water Volume:
U.S. Gallons
Liters/Litres
Milliliters (ml)
Cubic Centimeters
Cubic Inches
Cubic Feet
Cubic Meters
Level Teaspoons
Level Tablespoons
Level U.S. Cups
Level Metric Cups
Current Salinity:
Parts-Per-Thousand (ppt)
Relative Specific Gravity (sg)
Conductivity (mS/cm)
Target Salinity:
Parts-Per-Thousand (ppt)
Relative Specific Gravity (sg)
Conductivity (mS/cm)
Water Change Volume:
U.S. Gallons
Liters/Litres
Milliliters (ml)
Cubic Centimeters
Cubic Inches
Cubic Feet
Cubic Meters
Level Teaspoons
Level Tablespoons
Level U.S. Cups
Level Metric Cups
Maximum Salinity Change Per Water Change:
Parts-Per-Thousand (ppt)
Relative Specific Gravity (sg)
Conductivity (mS/cm)
Maximum Safe* Salinity Of Make-Up Water:
Parts-Per-Thousand (ppt)
Relative Specific Gravity (sg)
Conductivity (mS/cm)
* At higher-than-normal salinities, important compounds may begin to precipitate out of saltwater.
Salinity Unit For Schedule:
Parts-Per-Thousand (ppt)
Relative Specific Gravity (sg)
Conductivity (mS/cm)
Water Change Schedule: