Charge builder
How much spirit and water to hit a target charge volume and ABV. Contraction is accounted for, and the ethanol cost of the charge comes with it.
Target charge
Liquid volume above is AFTER displacement; this field only checks your pot has room: liquid + displacement must fit the pot.
Spirit source
Neutral spirit is typically ~96% ABV. Use the ABV on your supplier's CoA for the batch. Cost is per litre of spirit as delivered (leave 0 to skip costing).