The Water Amount Calculator calculates the total amount of water needed for your brew including mash water and sparge water needed. The Water Amount Calculator uses your target final volume, amount of grains, grain retention, mash thickness, equipment loss, evaporation rates and boil time when calculating the water amounts needed.

Water Amounts Calculator

Target Final Volume: Gallons or Litres
Amount of Grains: Pounds or Kilograms
Water Retention in Grain: Quarts per Pound or Litres per Kilogram (Daniels = .8 qt/lb, Palmer = .5 qt/lb)
Mash Thickness: Quarts per Pound or Litres per Kilogram
Equipment Loss: Gallons or Litres
Evaporation Rate: Gallons or Litres per Hour
Boil Time: Minutes