Saving $100 on $1 a week: how long it takes
With $1 a week split 50/40/10, the save jar adds $0.40 a week, so $100 takes 250 weeks, or 91 weeks with weekly interest from a parent.
$100 on $1 a week
- Allowance a week
- $1
- Save jar a week (40)
- $0.40
- Save jar only
- 250 weeks (about 58 months)
- With 2 in every 100 a week interest
- 91 weeks
- Saving all of it
- 100 weeks
The same amount, in numbers
- Every month (52 weeks / 12)
- $4.33
- Every year
- $52
- Spend jar (50)
- $0.50
- Give jar (10)
- $0.10
TaskFamily splits the $1 into jars automatically and shows the goal date for $100 on your child's own screen.
Free for one household. Premium is $5.99 a month or $49 a year for the whole family, never per child.
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Every amount is worked out with the same functions as our allowance and savings goal calculators. Rules of thumb, not advice on what to pay. The guide text is drafted with AI from these numbers and checked automatically before it is published.