Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Personal Finance
Debt Payoff Calculator
Calculate how many months it takes to pay off a single debt at a fixed APR — either by making only the minimum payment or by paying a chosen monthly amount. Use it to compare the long-term cost of paying minimums versus accelerating payoff.
Personal Finance
Budget Allocation Calculator
Calculate how much of your monthly income is left for savings and debt payments after allocating percentages to needs and wants. Use it to size a budget around any allocation framework — 50/30/20, 70/20/10, or a custom split.
Key differences
| Debt Payoff Calculator | Budget Allocation Calculator | |
|---|---|---|
| Category | Personal Finance | Personal Finance |
| Inputs required | 4 | 3 |
| Result | Months to Pay Off (months) | Savings & Debt Payment ($) |
| What it does | Calculate how many months it takes to pay off a single debt at a fixed APR — either by making only the minimum payment or by paying a chosen monthly amount. Use it to compare the long-term cost of paying minimums versus accelerating payoff. | Calculate how much of your monthly income is left for savings and debt payments after allocating percentages to needs and wants. Use it to size a budget around any allocation framework — 50/30/20, 70/20/10, or a custom split. |