Attraction seasonal staffing calendar calculator

Calculate daily staffing [date,required,available,gap] and total uncovered staff-days with your own figures.

Your numbers

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

Use daily staffing [date,required,available,gap] and total uncovered staff-days to compare changes to your inputs. The method and limits below explain the scope.

Examples

Examples

Try the starting example

Opening dates [ISO date,visitors,available staff]; enter JSON
[["2026-11-01",100,4],["2026-11-02",150,4]]
Fixed minimum staff (count)
1
Visitors per additional staff (count)
50
Daily staffing [date,required,available,gap] (JSON)
[["2026-11-01",3,4,0],["2026-11-02",4,4,0]]
Total uncovered staff-days
0

Try another scenario

Opening dates [ISO date,visitors,available staff]; enter JSON
[["2026-11-01",120,4],["2026-11-02",200,5]]
Fixed minimum staff (count)
2
Visitors per additional staff (count)
60
Daily staffing [date,required,available,gap] (JSON)
[["2026-11-01",4,4,0],["2026-11-02",6,5,1]]
Total uncovered staff-days
1
Calculation method

Calculation method

Daily staffing [date,required,available,gap] (JSON)

Required=fixed minimum+ceil(visitors/ratio); gap=max(0,required−available).

Total uncovered staff-days

Sum daily staffing gaps.

Symbols and units
a
Opening dates [ISO date,visitors,available staff]; enter JSON
b
Fixed minimum staff (count)
c
Visitors per additional staff (count)

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

  • Daily staffing rule: fixed minimum plus ceil(visitors/visitors-per-additional-staff); no legal staffing ratio inferred. Supported limits: All numeric inputs and computed intermediates must remain finite. Supported numeric input magnitude is zero or 1e-12 through 1e12 in absolute value; reject values outside this bounded range. All lists/JSON record tables are limited to 100 records unless a stricter bound is stated; reject malformed record arity and wrong member types. All numeric values must be finite. Lists contain at most 100 records; required lists must be nonempty. Rates, probabilities and fractions are entered as fractions, not percentages; fractions must be between 0 and 1. Use a single consistent user-selected currency for all amounts; no exchange-rate conversion.
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