How the math works
Standard total = base × (52 × 53 / 2). Example: $1 base → $1,378.
Example
- Pick a base amount (₹10, $1, $5…).
- Choose increasing, reversed, or fixed weekly.
- Scan the calendar of deposits and the year-end total.
Catch the catches
- Reversed (52 first, 1 last) is often easier because the hard weeks land when motivation is high.
Questions
Does progress save if I close the tab?
Yes. Completed weeks are stored in this browser with localStorage. Clearing site data will reset the checklist.
Can I print the challenge?
Yes. Use the Print schedule button. Headers and navigation are hidden in the print stylesheet.
Are these calculators free?
Yes. They run in your browser. You do not need an account, and we do not require personal financial data to use them.
Should I treat the result as a bank or store quote?
No. Results are educational math. Merchants, lenders, and tax rules can differ. Verify the live terms before you pay.