Planning information only. Totals and projections are planning estimates based on the deposits you mark — not financial advice, tax advice, or a guarantee that a challenge pace will fit your budget. Only deposit money you can afford to set aside.
Track your challenge
Pick a challenge, set your start date, then tap each envelope or week as you deposit it. Progress saves automatically in this browser.
How the challenges work
In the 100-envelope challenge, you label 100 envelopes 1 to 100, draw one at a time, and deposit the amount on it. Because 1 + 2 + … + 100 = 5,050, finishing every envelope saves exactly $5,050. In the 52-week challenge, you deposit $1 in week 1, $2 in week 2, and so on up to $52 — a total of $1,378. The reversed version starts at $52 and steps down, which suits people whose income is stronger at the start of the year.
Make it fit real life
- Go out of order freely — tap any cell when you have that amount spare.
- Smaller pace still counts: half amounts finish at half the total, which beats quitting.
- Keep the money in a separate savings account so a marked cell really means saved.
| Challenge | Total saved | Hardest single deposit | Typical pace |
|---|---|---|---|
| 100-Envelope | $5,050 | $100 | About 3–4 months at one envelope a day |
| 52-Week classic | $1,378 | $52 (final week) | One deposit a week for a year |
| 52-Week reversed | $1,378 | $52 (first week) | One deposit a week, getting easier |
Frequently asked questions
How does the 100-envelope challenge total $5,050?
The envelopes are numbered 1 through 100 and you deposit the number shown. Adding every number from 1 to 100 gives 100 × 101 ÷ 2 = $5,050, so completing every envelope always totals the same amount, whatever order you draw them in.
What if I miss a week or draw a big envelope early?
Nothing breaks. Both challenges are self-paced — mark cells whenever you deposit, in any order. The tracker totals whatever you have actually marked and projects a finish date from your real pace.
Can I do the 52-week challenge biweekly instead?
Yes. Deposit two weeks at a time on payday — for example weeks 1 and 2 together ($3) — and mark both cells. The yearly total stays $1,378; only the rhythm changes.
Where should I keep the challenge money?
A separate savings account keeps marked cells honest and the money out of everyday spending. This tracker never connects to any account — it only records what you tap.
Sources and methodology
- FDIC — Money Smart financial educationGeneral guidance on saving habits and money management; accessed October 2026.
- CFPB — Ask CFPBConsumer answers on savings accounts and everyday money questions; accessed October 2026.
- ToolVerse DisclaimerExplains the limits of ToolVerse planning estimates.