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Salinity Converter

Convert salt content between common units: enter your value in ppt, ppm, percent or specific gravity and see all the equivalent readings instantly — handy for aquariums, pools and lab work.

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How to use

  1. Type your value in any of the unit boxes, or choose from the option list.
  2. All the other units update live — there is no button to press.
  3. Change the value or switch units and the new results appear at once.

Note

Specific gravity is worked out with the approximate formula SG = 1 + 0.0007 x ppt (around 25°C, typical seawater). Seawater is usually 35 ppt. Use a refractometer for accurate measurement.

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