Communal cleaning rota credits calculator

Calculate proposed task assignment and existing plus proposed credits by resident with your own figures.

Your numbers

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

Use proposed task assignment and existing plus proposed credits by resident to compare changes to your inputs. The method and limits below explain the scope.

Examples

Examples

Try the starting example

Residents: name, existing earned credits, available weekdays joined by |
A,0,1|2 B,2,1|2
Tasks: name, weekday 1 to 7, agreed credits
Kitchen,1,3 Bath,2,2
Proposed task assignment
Kitchen: A; Bath: B
Existing plus proposed credits by resident
A: 3; B: 4
Proposed task credits assigned
5
Uncovered tasks
None

Try another scenario

Residents: name, existing earned credits, available weekdays joined by |
A,0,1|2 B,0,1|2
Tasks: name, weekday 1 to 7, agreed credits
Kitchen,1,3 Bath,2,2
Proposed task assignment
Kitchen: A; Bath: B
Existing plus proposed credits by resident
A: 3; B: 2
Proposed task credits assigned
5
Uncovered tasks
None
Calculation method

Calculation method

Proposed task assignment

Process tasks in input order; choose an available resident with the fewest current credits, adding proposed credits immediately. Input resident order breaks ties.

Existing plus proposed credits by resident

Existing credits plus credits from this proposed plan.

Proposed task credits assigned

Sum credit values assigned to available residents.

Uncovered tasks

Tasks whose weekday has no available resident.

Symbols and units
a
Residents: name, existing earned credits, available weekdays joined by |
b
Tasks: name, weekday 1 to 7, agreed credits

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

  • A proposal under your agreed credit values, availability and least-credit rule. It does not record work as actually completed, enforce agreements, limit task time or optimise fairness across future weeks.
Are these inputs private?

These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.

Further reading

OpenStax: arithmetic and geometry ↗

Background reading; this does not imply endorsement or independent review of SumFizz.

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