52-week savings challenge
Pick your week 1 amount and start date. You'll see your total and a week-by-week plan with dates to tick off. Free, no sign-up, and nothing you type leaves your device.
Want it in a spreadsheet?
The Sinking Funds Tracker spreadsheet includes a 52-week challenge and a 100-envelope challenge, plus a pot for every goal you're saving for. Excel and Google Sheets. No app, no sign-up, no subscription.
How it works
The sum
In week 1 you save your starting amount, in week 2 twice that, and so on up to 52 times it in week 52. Added up, that's 1 + 2 + ... + 52 = 1,378 times your starting amount. "Big to small" does the same weeks in reverse, so the hardest weeks come first (handy before Christmas).
Make it stick
Print the table below or keep this page bookmarked, and tick off each week. A separate savings account helps the money stay put.
This is a planning tool, not financial advice.