Aquarium feeding inventory ledger calculator

Calculate stock-limited feeding days and usable days before stock/spoilage limit with your own figures.

Your numbers

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

Use stock-limited feeding days and usable days before stock/spoilage limit to compare changes to your inputs. The method and limits below explain the scope.

Examples

Examples

Try the starting example

Usable food stock (g)
500
Owner-prescribed daily amount (g/day)
10
Days until spoilage date
30
Reorder lead time (days)
5
Stock-limited feeding days
50
Usable days before stock/spoilage limit
30
Reorder in days (0=now)
25

Try another scenario

Usable food stock (g)
550
Owner-prescribed daily amount (g/day)
10
Days until spoilage date
30
Reorder lead time (days)
5
Stock-limited feeding days
55
Usable days before stock/spoilage limit
30
Reorder in days (0=now)
25
Calculation method

Calculation method

Stock-limited feeding days

Days=min(stock/daily use,daysToSpoilage); reorder=max(0,usableDays-leadTime).

Usable days before stock/spoilage limit

Days=min(stock/daily use,daysToSpoilage); reorder=max(0,usableDays-leadTime).

Reorder in days (0=now)

Days=min(stock/daily use,daysToSpoilage); reorder=max(0,usableDays-leadTime).

Symbols and units
a
Usable food stock (g)
b
Owner-prescribed daily amount (g/day)
c
Days until spoilage date
d
Reorder lead time (days)

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

  • Inventory only; daily amount entered by owner, no feeding recommendation. 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. Inventory only; daily amount entered by owner, no feeding recommendation.
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