Scape
Math
Metric
US
Salinity & specific gravity converter
From an SG reading
From salinity (ppt)
Specific gravity reading
Salinity
ppt
Water temperature
°C
Instrument calibrated at
60/60 °F (15.6 °C), most glass and swing-arm hydrometers
25/25 °C (77 °F)
20/20 °C (68 °F)
Salinity
–
SG at 25/25 °C
–
SG at 60/60 °F
–
Your instrument should read
–
Density
–
Free calculator by
ScapeMath
. Method, worked examples and sources on the full page.