Brew gravity points balance calculator

Calculate theoretical gravity points and theoretical specific gravity with your own figures.

Your numbers

Use the units shown. Results update as you change valid inputs.

Use theoretical gravity points and theoretical specific gravity to compare changes to your inputs. The method and limits below explain the scope.

Examples

Examples

Try the starting example

Ingredient masses (kg)
4,0.5
Supplied extract potential (litre gravity points/kg)
300,280
Final wort volume (L)
25
Theoretical gravity points
53.6
Theoretical specific gravity
1.0536
Potential points×litres
1340

Try another scenario

Ingredient masses (kg)
5.0,0.5
Supplied extract potential (litre gravity points/kg)
300,280
Final wort volume (L)
25
Theoretical gravity points
65.6
Theoretical specific gravity
1.0656
Potential points×litres
1640
Calculation method

Calculation method

Theoretical gravity points

points=sum mass×supplied potential / litres; SG=1+points/1000.

Theoretical specific gravity

points=sum mass×supplied potential / litres; SG=1+points/1000.

Potential points×litres

points=sum mass×supplied potential / litres; SG=1+points/1000.

Symbols and units
a
Ingredient masses (kg)
b
Supplied extract potential (litre gravity points/kg)
c
Final wort volume (L)

Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.

Assumptions & limits

Assumptions & limits

  • User potential yield assumes100% extraction; actual mash efficiency separate. Supported limits: All required fields must be finite values of the exact declared type and within displayed bounds. Lists contain1–1000 finite numbers. JSON tables are numeric rectangular rows, at most100 rows and30 columns; individual tools have stricter shape/domain constraints. User potential yield assumes100% extraction; actual mash efficiency separate.
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