Brew ingredient pack shortfall calculator

Calculate packs to buy by ingredient and purchased masses with your own figures.

Your numbers

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

Use packs to buy by ingredient and purchased masses to compare changes to your inputs. The method and limits below explain the scope.

Examples

Examples

Try the starting example

Required ingredient masses (kg)
5,2,1
Available ingredient masses (kg)
1,1,0
Purchase pack masses (kg)
2,0.5,1
Packs to buy by ingredient (JSON)
[2,2,1]
Purchased masses (JSON)
[4,1,1]
Surplus masses (JSON)
[0,0,0]

Try another scenario

Required ingredient masses (kg)
[6, 2, 1]
Available ingredient masses (kg)
[1, 1, 0]
Purchase pack masses (kg)
[2, 0.5, 1]
Packs to buy by ingredient (JSON)
[3,2,1]
Purchased masses (JSON)
[6,1,1]
Surplus masses (JSON)
[1,0,0]
Calculation method

Calculation method

Packs to buy by ingredient (JSON)

For each ingredient, round max(0,requirement−stock)/pack mass upward.

Purchased masses (JSON)

For each ingredient, round max(0,requirement−stock)/pack mass upward.

Surplus masses (JSON)

For each ingredient, round max(0,requirement−stock)/pack mass upward.

Symbols and units
a
Required ingredient masses (kg)
b
Available ingredient masses (kg)
c
Purchase pack masses (kg)

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-supplied measurements and assumptions; For each ingredient, round max(0,requirement−stock)/pack mass upward. Supported limits: Finite numeric values bounded to 1e9 magnitude; lists and tables contain 1–100 records unless a stricter bound is stated. Inputs use the units shown. Lists explicitly paired by a method must have matching lengths; independent polynomial coefficient vectors may differ. Respect stated physical, interpolation, policy and computational domain limits.
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