Hydrometers are used by winemakers to determine the sugar content of wine, grape must and juice, and they're also used in soil analysis. For better accuracy, the reading of the hydrometers must be corrected according to the temperature because the density of a liquid changes with temperature.
This calculator will tell you the actual specific gravity no matter what temperature the sample is.
|Actual SG of wine, must, juice|
|Temperature of wine, must, juice|
|Corrected SG, must, juice|