If most of the weekly number is rounds, this tracks the nights as well as the cost.
The cycle.
Nothing you bought was stupid. It's that nobody ever showed you the total.
Almost nobody carrying card debt got there through one bad decision. It arrives forty dollars at a time, across a hundred ordinary evenings, none of which felt like anything at the time — and the card is designed so that you never see the sum. There's no moment where it tells you. So the first half of this page is just the total, and the second half is how the card actually works, which is a thing most people are never taught and then quietly blamed for not knowing.
Nobody is bad with money. Some people have just never seen the number.
What a normal week actually costs.
Put in what a regular week looks like. Not a big week, not a quiet one — a Tuesday-to-Sunday you'd call unremarkable. Nothing is stored or sent anywhere; the maths happens in your browser.
$314
A normal week
- A month$1,360
- A year$16,320
- Five years, kept and invested$97,366
- Ten years, kept and invested$235,395
Growth shown at 7% a year, a common long-run stock market assumption — an assumption, not a promise. The yearly figure is the honest one, and it's the one that matters.
That is not a small leak. That's a deposit.
The point of that number isn't guilt. It's that the money was never missing — it was never counted. Nobody decides to spend sixteen thousand a year on evenings. It happens because forty dollars on a Thursday is invisible and the statement arrives as one lump you scroll past. Seeing the year is the whole intervention. Most people cut a third of it in the first month just by knowing, without giving anything up that they'd actually miss.
How the card actually works.
None of this is taught anywhere, all of it is on the back of the statement in six-point type, and every one of these costs real money to not know.
- If you pay the full statement balance, you pay no interest at all. That's the grace period, and it's usually 21 to 25 days. Used this way a credit card is a free short-term loan with protections a debit card doesn't have. This is the single most valuable fact on this page.
- Pay the statement balance, not the current balance. They're different numbers. The statement balance is what you owe from the closed billing cycle. Paying that in full by the due date is what switches the interest off — you don't need to pay for purchases you made yesterday.
- Carry a balance once, and the grace period disappears. This is the part that catches people. The month after you don't pay in full, new purchases start accruing interest from the moment you make them — no grace, no free window. It comes back only after you've cleared the balance entirely. This is the actual mechanism of the cycle.
- Interest is calculated daily, not monthly. Your APR divided by 365, applied to the average daily balance, compounding. A 24.99% APR isn't 24.99% of what you owe at month end — it's charged every day on what you owed that day, and then charged on the interest.
- The minimum payment is designed to be slow. Typically around 1% of the balance plus that month's interest, or a $25–$35 floor. It is calculated to keep you solvent and paying for as long as possible. Paying the minimum is not "keeping on top of it" — see the next section.
- Cash advances have no grace period. Interest from the moment you take it, at a higher APR, with a fee on top. This includes ATM withdrawals, and often gambling, crypto, and money transfers. There is essentially no good reason to use one.
- Utilisation is about 30% of your credit score. That's your balance divided by your total limit. Under 30% is the usual advice, under 10% is better. It's reported on the statement date, not the due date — so paying before the statement closes lowers the number that gets reported.
- Payment history is the biggest factor — about 35%. One payment 30 days late can sit on your file for years and costs more, over a mortgage, than almost anything else here. If you can only do one thing: automate the minimum, so you are never late, and pay more manually on top.
- Don't close the old card once it's paid off. It shortens your average account age and cuts your total available credit, which pushes utilisation up. Cut the plastic up if you need to. Leave the account open.
What the minimum payment really does.
Put your real balance and APR in. Your APR is on your statement, or in the app under card details — most people have never looked, and it's usually higher than they'd guess.
19y 8m
Paying only the minimum
| If you pay | Clear in | Interest paid |
|---|
Minimum modelled as 1% of the balance plus interest, with a $25 floor — the common structure. Assumes you stop adding to the card, which is the entire trick.
The gap between the minimum and the minimum plus a hundred is usually a decade.
What to do, in sequence.
Don't do these at the same time. Do them in this order, finish one, then start the next.
- Automate every minimum payment todayBefore anything else. This makes late marks — the most expensive mistake available to you — impossible. Ten minutes in the app.
- Find your real numberEvery card, every balance, every APR, on one page. Most people have never written them all down together, and the total is usually not what they'd have guessed in either direction.
- Put aside one month of essentialsRent, food, transport, phone. Not six months, not yet — just one. This is what stops the next flat tyre going back on the card and restarting everything. A small buffer beats a fast payoff that collapses in March.
- Call and ask for a lower APRFree, takes fifteen minutes, and works more often than anyone expects — especially if you've paid on time for a year. There's a script in the next section.
- Pick avalanche or snowball, then don't switchAvalanche — highest APR first — costs you the least money and is mathematically correct. Snowball — smallest balance first — clears whole cards sooner, which people stick with better; there's real research showing the adherence gain often beats the interest saving. Choose on which one you'll still be doing in June, not which is optimal on a spreadsheet.
- Consider a 0% balance transfer, carefullyGenuinely useful: 12–21 months at 0%, for a 3–5% transfer fee. Only worth it if you will clear it inside the promo window, and only if the old card doesn't quietly fill back up — which is the usual failure. The rate snaps back hard at the end.
- Then, and only then, start investingExcept for an employer retirement match, if you have one — that's an instant 50–100% return and beats paying down almost any card. Otherwise: clearing 25% APR debt is a guaranteed 25% return, which no investment will reliably give you.
Fifteen minutes, often worth thousands.
Card issuers have retention and hardship teams whose job is to keep you as a paying customer rather than lose you to default. Almost nobody calls them.
To ask for a lower rate — call the number on the back of the card and say, roughly:
I've been a customer for [X] years and I've paid on time. I'm carrying a balance at [X]% and I'm looking at a balance transfer offer elsewhere. Before I move it, can you lower my APR?
If you're actually behind, or about to be, ask specifically for the hardship department — a different team with different powers:
I'm having trouble keeping up with the payments and I want to sort it out before it goes further. What hardship or repayment programmes do you have?
Hardship plans can mean a reduced APR, waived fees, or a fixed payment schedule. Some are noted on your credit file, so ask what gets reported before agreeing. Calling early, while you're still current, gives you far more options than calling after you've missed two payments.
In the US, free non-profit credit counselling exists through NFCC-member agencies. Anyone charging a large upfront fee to "settle" or "erase" your debt is selling something worse than what you already have.
The loop, and where it actually breaks.
- The statement arrives as one number, so no single purchase ever feels like the problem.
- Paying the minimum feels like handling it. It's the only option on the page designed to be chosen.
- Tap-to-pay removes the one second where you'd have noticed. Cash feels different for a reason.
- The spending is usually social — it's a round, a taxi, a birthday. Cutting it feels like cutting people, which is why "just stop" never works.
- Shame keeps people from opening the app, and not opening the app is what lets it grow.
- The buffer is the real fix. Without one month set aside, one bad week undoes six good ones and you conclude you're hopeless.
- The number is the intervention. Almost nobody who adds up a year keeps spending the same way.
You don't need more discipline. You need the total, in front of you, once.
Honest notes
Nothing here is stored. Both calculators run entirely in your browser. Nothing is sent to us, saved, or logged.
Not financial advice. This is general education about how consumer credit works, not advice about your situation. Figures are illustrative — your card's exact minimum formula, fees and terms are in your cardholder agreement, and they vary. If debt has reached the point of missed rent, collections, or court letters, that's worth taking to a non-profit credit counsellor, who is free, rather than a page on the internet.
Tools for this
Small apps built for small steps. Each keeps your data on your phone.
Delivery is usually the second-biggest line. Logging it tends to shrink it.