Household chore fairness ledger calculator

Calculate credits by person and average credits with your own figures.

Your numbers

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

Use credits by person and average credits to compare changes to your inputs. The method and limits below explain the scope.

Examples

Examples

Try the starting example

People, one per line
Alex Sam
Completed tasks: person, agreed credits; one per line
Alex,3 Sam,1
Credits by person
Alex: 3; Sam: 1
Average credits
2
Credit spread
2
Next person by lowest credits
Sam

Try another scenario

People, one per line
A B C
Completed tasks: person, agreed credits; one per line
A,2 A,1 C,3
Credits by person
A: 3; B: 0; C: 3
Average credits
2
Credit spread
3
Next person by lowest credits
B
Calculation method

Calculation method

Credits by person

Sum completed-task credits for each supplied person. Names must match exactly.

Average credits

Total completed credits / number of people.

Credit spread

Largest person total − smallest person total.

Next person by lowest credits

First person in input order with the lowest total; this is an equal-credit suggestion only.

Symbols and units
a
People, one per line
b
Completed tasks: person, agreed credits; one per line

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

  • Uses your agreed effort credits and equal-credit targets, without judging fairness or availability. The next-person suggestion does not allocate a specific task. Names and records remain in the browser.
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: ratios, percentages and rectangular geometry ↗

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

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