Ensure you have the Alcohol By Volume Plugin enabled

The “Spirit By Weight” calculator will only be visible to you if you have certain plugins and settings enabled.

Make sure you have the Alcohol By Volume Plugin enabled here:

Check your Advanced Settings for calculation methods

You will also need to enable some Advanced Settings, if they have not been turned on for you already:

Use the calculator

Once you have your settings turned on, you will see the Spirit Weight By Volume Calculator in the right hand side panel of Vinsight.
As the calculator is always in the side panel, you can access it from almost any page in Vinsight:

You can enter any of the values shown in the calculator and Vinsight will calculate the values you have not filled in for you where possible.

In the example below, we have entered in an ABV and a Weight. Vinsight has calculated the Specific Gravity, Volume and LALs, assuming a temperature of 20°C.