Allowance Calculator accuracy and testing

Formula source

• Spendable weekly allowance = base weekly allowance + child age x age factor + chore earnings - savings/giving allocation.

Test cases

Known limitations

• This calculator is a planning aid only. It does not replace medical, developmental, education, financial, or professional guidance.

Assumptions

• All values are user-entered and the calculation is deterministic.
• The calculator runs locally in the browser and does not store family, child, schedule, or household data.
• Results are planning estimates only and should be adjusted for your child, household, school, budget, and family context.

Unit handling

• Base Weekly Allowance accepts values in $.
• Child Age accepts values in years.
• Age Factor accepts values in $/year.
• Weekly Chore Earnings accepts values in $.
• Savings or Giving Allocation accepts values in %.
• Spendable Weekly Allowance is displayed as currency.
• Gross Weekly Allowance is displayed as currency.
• Savings/Giving Amount is displayed as currency.

Rounding rules

• Number displays use up to 2 decimal places in the calculator UI.
• Currency outputs are displayed with standard US dollar formatting.
• Input precision follows configured step values where provided.

Version history

Change log