Transparent method
The formula
Worked example
Example inputs
How to interpret the result
Solving for the payment needed to clear a balance by a specific date only produces a workable answer if that payment actually exceeds the interest accruing each period, because a payment too close to the periodic interest charge barely dents the balance and never reaches the target date at all.
Before you rely on it
What to check
Confirm the calculated required payment comfortably exceeds the periodic interest on the current balance, not just barely above it.
The common error
Where people go wrong with credit card payment calculator
Setting an aggressive payoff date without checking whether the required payment is realistic against the actual budget. A required payment that isn't sustainable defeats the purpose of setting the target date in the first place.
Sensitivity evidence
How annual interest rate changes the required monthly payment
| Annual interest rate | Required monthly payment | Total interest |
|---|---|---|
| 14.0% | $513 | $3,456 |
| 16.0% | $527 | $3,985 |
| 18.0%worked example | $542 | $4,522 |
| 20.0% | $557 | $5,068 |
| 22.0% | $573 | $5,623 |
Every input, tested
Which input moves the required monthly payment most
| Input | Tested from | To | Required monthly payment at each end | Swing |
|---|---|---|---|---|
| Target payoff time | 27.0 months | 45.0 months | $680 to $461 | $219 (40%) |
| Balance | $13,500 | $16,500 | $488 to $597 | $108 (20%) |
| Annual interest rate | 16.0% | 20.0% | $527 to $557 | $30 (5.6%) |
Two variables at once
Required monthly payment by annual interest rate and balance
| Annual interest rate \ Balance | $12,000 | $15,000 | $18,000 |
|---|---|---|---|
| 14.0% | $410 | $513 | $615 |
| 16.0% | $422 | $527 | $633 |
| 18.0% | $434 | $542 | $651 |
| 20.0% | $446 | $557 | $669 |
| 22.0% | $458 | $573 | $687 |
Step by step
The worked example, input by input
| Input | Value used |
|---|---|
| Balance | $15,000 |
| Annual interest rate | 18.0% |
| Target payoff time | 36.0 months |
| Required monthly payment | $542 |
| Total interest | $4,522 |
Where the inputs come from
Balance and interest rate come from your statement, and the target payoff time is the number of months you choose. The tool returns the fixed payment that would clear the balance by then, assuming no new charges. Pick a target that fits your budget, such as 24 or 36 months, and check the payment against your monthly cash flow before committing. If you have a promotional rate, use the rate that applies to the balance now.
When the result stops applying
The result assumes a constant rate and no new spending. A variable APR can change the payment needed. If you miss a payment or the issuer adds fees, the balance grows. Paying by autopay from a bank account avoids missed dates. Some issuers apply payments to lower-rate balances first, so extra payments may not go where you expect.
What to compare it with
See the payoff pace for a chosen payment on the credit card payoff calculator, and the debt payoff date page for the same math on any debt. The balance transfer and consolidation calculators show how a lower rate would change the payment. The minimum payment calculator shows what happens if you pay less.
People also ask
Frequently asked questions
How do I choose a payoff time?
Pick the shortest period whose payment fits your budget with room for emergencies. A shorter time saves interest, but a payment you cannot keep saves nothing.
Will the payment change if my APR changes?
Yes. A rate increase raises the payment needed to hit the same date, so recheck after any change in your APR.
Do extra payments go to the highest-rate balance?
Federal rules require issuers to apply amounts above the minimum to the highest-rate balance first, which helps when you have different rates on one card.