Free tool
When do I get the thing?
Put in what it costs, what is already saved, and what goes in each week. The date is the answer a child actually wants. Then try the last box: the one small thing skipped each week, and how many weeks sooner that makes it.
You reach it in 20 weeks, around March 19, 2027, saving $5 a week.
Quick tries
Today of 20
$20 of $120 saved
Each dot is one week of saving. Press play and watch the jar fill.
Rounded up to whole weeks. Change one number and watch the date move; that is the conversation to have with a child.
What this teaches
A goal with a date is a plan; a goal without one is a wish. The trade-off box makes opportunity cost visible without using the words.
Taught properly in Unit 1.3 · Saving for Something →For teachers
Put it on the board, change one number at a time, and ask the class to predict before you press. Free to use in any classroom.
What a teacher gets with the program →For families
The five-day version of this conversation is The $100 Week™. No account, no download, and your child plays it, not you.
See the family path →Also free: Compound interest calculator →