Emergency savings
Emergency Fund Calculator
Set a reserve target from essential monthly expenses and the number of months you want covered, then compare that target with your current savings and monthly contribution.
Calculator library
Financial Calculators for Debt, Credit Cards, Budgeting and Savings
Make the next money decision with the numbers in front of you. Estimate debt payoff time, interest, credit utilization, or savings goals, and compare the options that matter to your budget.
Budget & Cash Flow
Assign monthly income to a purpose, map steady pay to real paydays, or use variable-income history to set a conservative planning baseline before deciding what can move to savings or debt.
Paycheck planning
Paycheck Budget Calculator
Build a paycheck-by-paycheck plan from your actual pay schedule. Assign monthly bills, regular spending, and planned savings, then spot short checks and cash that’s still unallocated.
- Real pay dates
- Bill assignment
- Three-paycheck months
Zero-Based Budget CalculatorAssign monthly take-home income across spending, savings, sinking funds, and debt until every dollar has a job.
Irregular Income Budget CalculatorAnalyze 6–12 months of take-home income, set a conservative planning baseline, measure volatility, and estimate the cash-flow buffer needed for weaker months.
Savings & Goals
Set a reserve or planned-expense target, or project how an existing balance and recurring contributions can grow at a selected APY.
Planned expenses
Sinking Fund Calculator
Plan for a known expense using a target amount, current savings, planned monthly contribution, and target date.
Savings growth
Savings Interest Calculator
Project how a starting balance and recurring monthly contributions can grow with APY, separate contributions from interest, and compare a second yield.
Credit Cards & Credit
Break down interest, billing-cycle math, minimum payments, utilization, credit-limit changes, and balance-transfer costs before you change your payment plan.
Interest cost
Credit Card Interest Calculator
Estimate daily, monthly, yearly, and payoff interest from your balance, APR, and payment. You can also use an average daily balance when you want the estimate to match a billing-cycle calculation more closely.
- Daily interest
- Monthly estimate
- Payoff interest
Credit Utilization CalculatorCalculate overall and card-level utilization, then see how much to pay to reach 30%, 10%, or your own target.
Average Daily Balance CalculatorCalculate average daily balance from a starting balance plus dated purchases, payments, and credits.
Credit Card Minimum Payment CalculatorEstimate a card’s minimum payment and compare declining-minimum, fixed-payment, and three-year repayment paths.
Credit Limit Increase CalculatorSee how a requested credit-limit increase changes utilization or what limit a target would require.
Balance Transfer Savings CalculatorCompare a promotional APR offer with keeping the balance on your current card after transfer fees and post-promo interest.
Debt & Payoff
Start with a payoff baseline, then test the change you’re considering. Compare higher payments, target dates, debt order, timing, consolidation, and lower-rate repayment options.
Payoff baseline
Credit Card Payoff Calculator
Estimate when a balance reaches $0, how much interest may build along the way, and whether the monthly payment is high enough to keep the payoff moving.
- Payoff month
- Total interest
- Amortization path
Extra Payment CalculatorSee how a higher monthly payment, a one-time extra payment, or both change payoff time and estimated interest.
Debt Payoff Goal CalculatorWork backward from a payoff deadline to estimate the monthly payment required to reach it.
Debt Snowball vs Avalanche CalculatorCompare payoff order across several debts and see how the strategies affect interest and completion time.
Cost of Delay CalculatorCompare starting a stronger payment now with waiting before making the same repayment change.
Debt Consolidation Comparison CalculatorCompare current debts with a consolidation loan using payment, payoff time, APR, fees, and total cost.
Balance Transfer vs Personal Loan CalculatorUse the same card balance and monthly budget to compare a balance transfer, personal loan, and current-card path.
Debt-to-Income Ratio CalculatorCalculate front-end and back-end DTI, compare it with common lender limits, and see which debt to pay off first to lower it.
Explore the debt-focused library for payoff, credit-card, balance-transfer, consolidation, and repayment calculators organized around debt decisions.
Explore Debt Payoff CalculatorsNeed the explanation behind the numbers?
The Personal Finance Guides cover the assumptions, tradeoffs, and planning choices behind budgeting, savings, credit cards, debt payoff, balance transfers, consolidation, and related decisions.
Debt Payoff Planner
Build the Plan once. Keep checking it against real balances.
Save your chosen payoff path as Plan, record monthly Actual balances, and use Current to see whether you’re ahead, behind, or still on schedule as balances change.
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