Debt Consolidation Savings Calculator
ANA›Life Services Authority›National Calculator Authority›Debt Consolidation Savings Calculator
.calc-container { max-width: 640px; margin: 2rem 0; padding: 1.5rem; background: #fff; border: 1px solid #ddd; border-radius: 8px; box-shadow: 0 1px 3px rgba(0,0,0,0.06); font-family: system-ui, -apple-system, sans-serif; } .calc-container h3 { font-family: Georgia, serif; font-size: 1.15rem; color: #1a1a1a; margin-bottom: 1rem; padding-bottom: 0.5rem; border-bottom: 2px solid var(--ac, #3d5a80); } .calc-row { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 0.75rem; flex-wrap: wrap; } .calc-row label { min-width: 160px; font-size: 0.9rem; color: #333; font-weight: 500; } .calc-row input[type="number"], .calc-row select { flex: 1; min-width: 120px; max-width: 200px; padding: 0.5rem 0.6rem; border: 1px solid #ccc; border-radius: 4px; font-size: 0.9rem; font-family: system-ui, sans-serif; color: #1a1a1a; background: #fafaf8; } .calc-row input:focus, .calc-row select:focus { outline: none; border-color: var(--ac, #3d5a80); box-shadow: 0 0 0 2px rgba(26,74,138,0.12); } .calc-row .unit { font-size: 0.82rem; color: #888; min-width: 30px; } .calc-btn { display: inline-block; margin-top: 0.5rem; padding: 0.55rem 1.5rem; background: var(--ac, #3d5a80); color: #fff; border: none; border-radius: 4px; font-size: 0.9rem; font-weight: 600; cursor: pointer; font-family: system-ui, sans-serif; } .calc-btn:hover { opacity: 0.9; } .calc-result { margin-top: 1.25rem; padding: 1rem 1.25rem; background: #f0f6fc; border-left: 3px solid var(--ac, #3d5a80); border-radius: 0 6px 6px 0; display: none; } .calc-result.visible { display: block; } .calc-result-label { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.06em; color: #666; margin-bottom: 0.25rem; } .calc-result-value { font-size: 1.6rem; font-weight: 700; color: var(--ac, #3d5a80); } .calc-result-detail { font-size: 0.85rem; color: #555; margin-top: 0.5rem; line-height: 1.5; } .calc-note { margin-top: 1rem; font-size: 0.8rem; color: #888; font-style: italic; } .calc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; margin-top: 0.75rem; } .calc-grid-item { padding: 0.6rem 0.8rem; background: #f8f9fa; border-radius: 4px; border: 1px solid #eee; } .calc-grid-item .label { font-size: 0.75rem; color: #888; text-transform: uppercase; letter-spacing: 0.04em; } .calc-grid-item .value { font-size: 1.1rem; font-weight: 600; color: #1a1a1a; } @media (max-width: 720px) { .calc-row { flex-direction: column; align-items: flex-start; gap: 0.3rem; } .calc-row label { min-width: auto; } .calc-row input[type="number"], .calc-row select { max-width: 100%; width: 100%; } .calc-grid { grid-template-columns: 1fr; } } .calc-chart { margin: 1rem 0; text-align: center; } .calc-chart svg { max-width: 100%; height: auto; } .calc-chart-legend { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.6rem 1.2rem; margin-top: 0.6rem; font-size: 0.8rem; color: #555; } .calc-chart-legend span { display: inline-flex; align-items: center; gap: 0.3rem; } .calc-chart-legend i { display: inline-block; width: 10px; height: 10px; border-radius: 2px; font-style: normal; } .calc-related { max-width: 640px; margin: 2rem 0 1rem; padding: 1.25rem 1.5rem; background: #f8f9fa; border: 1px solid #e8e8e8; border-radius: 8px; } .calc-related h3 { font-family: Georgia, serif; font-size: 1rem; color: #1a1a1a; margin: 0 0 0.75rem; padding-bottom: 0.4rem; border-bottom: 2px solid var(--ac, #3d5a80); } .calc-related-list { list-style: none; padding: 0; margin: 0 0 0.75rem; display: grid; grid-template-columns: 1fr 1fr; gap: 0.4rem 1.5rem; } .calc-related-list li a { font-size: 0.88rem; color: var(--ac, #3d5a80); text-decoration: none; } .calc-related-list li a:hover { text-decoration: underline; } .calc-browse-all { margin: 0.5rem 0 0; font-size: 0.9rem; font-weight: 600; } .calc-browse-all a { color: var(--ac, #3d5a80); text-decoration: none; } .calc-browse-all a:hover { text-decoration: underline; } @media (max-width: 720px) { .calc-related-list { grid-template-columns: 1fr; } }
Debt Consolidation Savings Calculator
Enter your existing debts and a proposed consolidation loan to see how much you could save in interest and monthly payments.
### Existing Debts
Debt 1 Balance ($):
Annual Interest Rate (%):
Minimum Monthly Payment ($):
Debt 2 Balance ($):
Annual Interest Rate (%):
Minimum Monthly Payment ($):
Debt 3 (optional) Balance ($):
Annual Interest Rate (%):
Minimum Monthly Payment ($):
### Consolidation Loan
Consolidation Loan Annual Interest Rate (%):
Loan Term (months):
Origination Fee ($, optional):
Calculate Savings
function debCalc() { var resultDiv = document.getElementById("deb-result"); resultDiv.innerHTML = "";
// --- Collect debt inputs --- var debts = []; for (var i = 1; i 0) { if (rate 100) { resultDiv.innerHTML = "Debt " + i + ": Interest rate must be between 0 and 100.
"; return; } if (pay 100) { resultDiv.innerHTML = "Please enter a valid consolidation loan interest rate (0–100%).
"; return; } if (isNaN(term) || term 360) { resultDiv.innerHTML = "Please enter a loan term between 1 and 360 months.
"; return; } if (fee 0 && months maxCurrentMonths) maxCurrentMonths = sim.months; }
// ------------------------------------------------------- // STEP 2: Consolidation loan // Standard amortisation formula: // M = P * [r(1+r)^n] / [(1+r)^n - 1] // where P = principal (total balance + fee), // r = monthly interest rate, // n = term in months // Total interest = M * n - P // ------------------------------------------------------- var principal = totalCurrentBalance + fee; var r_new = newRate / 100 / 12; var newMonthlyPayment, newTotalInterest;
if (r_new === 0) { newMonthlyPayment = principal / term; newTotalInterest = 0; } else { var factor = Math.pow(1 + r_new, term); newMonthlyPayment = principal * (r_new * factor) / (factor - 1); newTotalInterest = newMonthlyPayment * term - principal; }
// ------------------------------------------------------- // STEP 3: Savings // ------------------------------------------------------- var interestSavings = totalCurrentInterest - newTotalInterest; var monthlySavings = totalCurrentPayment - newMonthlyPayment; var timeSavings = maxCurrentMonths - term; // months
// ------------------------------------------------------- // Format helpers // ------------------------------------------------------- function fmt(n) { return n.toLocaleString("en-US", { minimumFractionDigits: 2, maximumFractionDigits: 2 }); } function fmtMonths(m) { if (m 0 ? yrs + " yr" + (yrs > 1 ? "s" : "") : ""); if (mos > 0) s += (s ? " " : "") + mos + " mo"; return s; }
// ------------------------------------------------------- // Build result HTML // ------------------------------------------------------- var savingsColor = interestSavings >= 0 ? "#2e7d32" : "#c62828"; var monthlyColor = monthlySavings >= 0 ? "#2e7d32" : "#c62828"; var timeColor = timeSavings >= 0 ? "#2e7d32" : "#c62828";
var html = "### Results "; html += ""; html += "MetricCurrent DebtsConsolidated LoanDifference";
html += "Total Balance$" + fmt(totalCurrentBalance) + "$" + fmt(principal) + "" + (fee > 0 ? "+$" + fmt(fee) + " fee" : "—") + "";
html += "Monthly Payment$" + fmt(totalCurrentPayment) + "$" + fmt(newMonthlyPayment) + "" + (monthlySavings >= 0 ? "Save $" : "Extra $") + fmt(Math.abs(monthlySavings)) + "/mo";
html += "Total Interest Paid$" + fmt(totalCurrentInterest) + "$" + fmt(newTotalInterest) + "" + (interestSavings >= 0 ? "Save $" : "Extra $") + fmt(Math.abs(interestSavings)) + "";
html += "Payoff Time" + fmtMonths(maxCurrentMonths) + "" + fmtMonths(term) + "**" + (timeSavings > 0 ? fmtMonths(timeSavings) + " faster" : timeSavings ";
html += "";
// Summary callout if (interestSavings > 0) { html += ""; html += "✓ Consolidation looks beneficial. You could save $" + fmt(interestSavings) + " in total interest"; if (monthlySavings > 0) html += " and reduce your monthly payment by $" + fmt(monthlySavings) + ""; html += "."; html += "
"; } else { html += ""; html += "⚠ Consolidation may cost more interest ($" + fmt(Math.abs(interestSavings)) + " extra) due to the longer term or higher rate. Consider a shorter term or negotiating a lower rate."; html += "
"; }
resultDiv.innerHTML = html; }
#### Formulas Used
Existing debt payoff simulation — each month:
Interest = Balance × (Annual Rate / 12) Balance = Balance + Interest − Monthly Payment (repeat until Balance ≤ 0) Consolidation loan monthly payment (standard amortisation):
r = Annual Rate / 12 M = P × [r × (1 + r)ⁿ] / [(1 + r)ⁿ − 1]
where P = Total Balance + Origination Fee n = Term (months) M = Fixed Monthly Payment Total interest on consolidation loan:
Total Interest = M × n − P Savings:
Interest Savings = Current Total Interest − Consolidation Total Interest Monthly Savings = Current Total Payment − New Monthly Payment Time Savings = Longest Current Payoff − Consolidation Term
#### Assumptions & References
- Formula reference: standard amortisation — Consumer Financial Protection Bureau (CFPB), consumerfinance.gov.
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