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EVERY DEBT & CREDIT DECISION · WITH THE MATH SHOWN

Debt & Credit Calculators

Free debt-payoff calculators. Snowball vs avalanche, balance transfers, student loan refinance, credit utilization, and DTI ratios. Priced with live Fed G.19 credit card APRs.

Start with Debt Payoff Calculator →

  • Debt Payoff Calculator

    Popular

    Create a custom snowball or avalanche payoff plan for all your debts.

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  • Credit Card Payoff

    See how fast you can pay off credit card balances at current Fed G.19 APRs.

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  • Student Loan Payoff

    Calculate student loan payoff timeline and total interest.

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  • Balance Transfer Savings

    Compare 0% intro APR offers net of transfer fees.

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  • Debt-to-Income Ratio

    Calculate DTI ratio used by lenders for loan approval.

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  • Debt Avalanche vs Snowball

    Compare the two most popular debt payoff strategies.

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  • Debt Consolidation

    See if consolidating debts at a lower rate saves money.

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  • Personal Loan Calculator

    Calculate monthly payments and total cost of a personal loan.

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  • Credit Score Impact

    See how financial actions affect your credit score.

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  • Credit Utilization

    Calculate credit utilization ratio and its FICO impact.

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  • Student Loan Refinance

    Compare federal vs private refinance savings.

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  • Early Loan Payoff

    See the effect of extra principal payments on any loan.

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Debt — deep-dive guides, FAQs, examples, sources

Long-form content kept collapsed by default so the calculator grid stays front-and-center. Expand any section below for primary-source analysis, worked examples, and category FAQs.

Guides (6 articles)▾

Complete debt payoff guide 2026

11 min read

Household debt in America totals $17.5T per Fed Z.1 data — $12.3T mortgages, $1.6T student loans, $1.1T credit cards. The right payoff strategy can save the average debtor $10–30k.

Avalanche vs snowball

Avalanche (pay highest rate first) mathematically optimal. Snowball (smallest balance first) psychologically optimal. Research (Dave Ramsey + academic) suggests 80% of people complete snowball plans vs 60% avalanche. Pick what you'll finish.

Credit card APRs

Average US credit card APR in 2026: 21.5% per Fed G.19 data. Carrying a balance is wealth-destroying. Use Credit Card Payoff to build a plan.

Balance transfer math

0% intro APR for 18 months on 3% transfer fee. On $10k balance: $300 upfront cost vs ~$3,225 interest savings at 21.5% APR. Clear winner if you'll pay it off inside the promo window.

Student loan strategy

Federal: IDR plans (SAVE, PAYE, IBR) cap at 10–20% discretionary income with 20–25 year forgiveness. Private: refinance aggressively if rate competitive. PSLF for 10-year public service workers.

Debt snowball vs avalanche deep dive

8 min read

Avalanche saves $500–3,000 on typical debt loads. Snowball increases completion probability by 20%. For most households, snowball's behavioral advantage outweighs avalanche's math.

Consolidation options compared

7 min read

Personal loan (5-12% APR), balance transfer (0% promo + 3-5% fee), HELOC (variable prime+), 401k loan (prime+2%, risky). Each has tradeoffs.

Credit score impact of debt

7 min read

Credit utilization (30% of FICO) is the fastest-moving component. Keep below 30%, ideally below 10%, on each card and overall.

Debt decision framework

6 min read

Plan: Debt Payoff. Credit card: Credit Card Payoff. Student loan: Student Loan Payoff. Transfer: Balance Transfer Savings. DTI: Debt-to-Income Ratio.

Common debt mistakes

7 min read

Paying minimums only, closing cards after payoff (hurts utilization), home-equity borrowing for non-appreciating expenses, 401k loans that fail on job loss.

FAQ (15 questions)▾
What is the average credit card APR?
Fed G.19 reports 2026 average ~21.5%. Rates for new accounts often exceed 24%. Balance-transfer cards offer 0% intro for 15–21 months with 3–5% transfer fees.
Snowball or avalanche?
Avalanche saves more math; snowball finishes more often. Pick the one you'll complete.
Should I consolidate debt?
Yes if new rate < weighted average of old rates and you may not accumulate new balances. Personal loans 6–12%, balance transfers 0% promo.
What credit utilization is ideal?
Below 30% overall; below 10% for optimal FICO. Applies to each card individually as well.
Does closing a card hurt my score?
Yes — increases utilization and reduces average account age. Keep old cards open with small recurring charges.
Are 0% balance transfer offers worth it?
Yes if you'll pay off in promo window. 3% transfer fee pays back in 2 months at 21% APR savings.
Can student loans be forgiven?
PSLF after 10 years public service. IDR forgiveness after 20–25 years. Discharge for total/permanent disability. Bankruptcy nearly impossible.
Is debt settlement legitimate?
Yes but damages credit 100+ points for 7 years. Settled debt counts as taxable income unless insolvent. Last resort.
How much debt is too much?
DTI > 43% = lenders decline. > 36% = stress. > 28% housing alone = tight. See Debt-to-Income Ratio calculator.
Should I pay debt or save?
Emergency fund $1k → match 401k → high-rate debt (>7%) → max Roth → remaining debt → taxable investing.
What is a HELOC?
Home Equity Line of Credit. Variable rate (prime + 0.5–3%). Draw period 10 years, repayment 20. Uses home as collateral.
Can I negotiate credit card APR?
Often yes — call and ask for retention rate. Works ~40% of the time per Consumer Reports studies. Mention hardship or competing offers.
Does paying off a collection remove it?
No — paid collection stays 7 years but scores better than unpaid. Pay-for-delete letter can remove in some cases.
What is a debt management plan?
Nonprofit credit counseling agency negotiates lower rates and single monthly payment. Typically 3–5 year program. Fees modest.
Do medical bills affect credit?
After 2023 change: under $500 medical collections no longer reported; paid collections removed; 1-year grace before reporting.
Real Examples (7 scenarios)▾

$15k credit card debt at 22% APR

Balance
$15,000
APR
22%
Payment
$400/mo

Result: 61 months · $9,400 total interest

Minimum-payment-only path: 30+ years, $50k+ interest. $400/mo gets it done in 5 years.

Balance transfer 0% 18-month

Balance
$10,000
Transfer Fee
3%
Promo APR
0% for 18 months
Monthly
$556

Result: Paid off in 18 months · total cost $300

Saves $1,900 vs 21% APR path over same 18 months.

Student loan refinance

Balance
$80,000
Current Rate
6.8% federal
New Rate
5.25% private
Term
10 years

Result: Saves $7,200 lifetime

Trade-off: lose IDR/PSLF eligibility. Worth it only if stable income and no public-service path.

Avalanche vs snowball, $60k debt

Cards
5 balances from $2k-$20k
Rates
14–24%
Monthly Budget
$1,500

Result: Avalanche: 48 months / Snowball: 51 months · $900 difference

Math favors avalanche by $900. Snowball's faster early wins keep 80% of debtors on track.

Debt consolidation loan

Total Debt
$35,000
Weighted Rate
18%
New Loan
$35k at 9% for 5 years

Result: Saves $8,500 · fixed payoff date

Cuts rate in half. Requires good credit (680+). Do not re-accumulate card balances.

Credit score impact

Current Utilization
65%
Current FICO
680
Strategy
Pay down to 25% utilization

Result: FICO +40–60 points in 2–3 months

Utilization is 30% of score. Fastest-moving component. Instant impact at statement cycle.

DTI for mortgage qualification

Gross Income
$85k
Monthly Debts
$850
Target PITI
$1,900

Result: Total DTI 38.8% — conforming OK, tight on jumbo

Below 43% conforming cap. Above 36% ideal. Reducing auto loan payment would improve qualification.

Sources (7 primary citations)▾
  1. [1]Freddie Mac Primary Mortgage Market Survey (PMMS) — weekly national mortgage rates
  2. [2]FDIC — National Deposit Rates (savings, checking, CD)
  3. [3]Internal Revenue Service — federal individual income tax brackets and standard deductions
  4. [4]FRED (Federal Reserve Economic Data) — real median household income, unemployment, HPI, LFPR per state
  5. [5]U.S. Census Bureau — American Community Survey (ACS) 5-year estimates
  6. [6]State Departments of Revenue — official bracket + deduction publications (one primary URL per state; linked in the brackets table below)
  7. [7]BLS Occupational Employment and Wage Statistics (OEWS) — state-level occupational wages

All data points cited to primary U.S. government, regulatory, and industry sources. Methodology published at /about/editorial.

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Written and maintained by Jere Salmisto, Founder, CalcFi. Updated May 19, 2026.

Formulas and data sourced from Fed G.19, FDIC, Freddie Mac PMMS, CFPB, IRS (student loan interest). Methodology at /about/editorial. Published by CalcFi Editorial.