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Finance

Balloon Mortgage Calculator

June 26, 2026 by Sam Gorman

Estimate monthly payment, balloon balance, principal paid, interest paid, and refinance cash gap for a fixed-rate balloon mortgage.

Categories Finance

Interest Only Mortgage Calculator

August 22, 2026June 26, 2026 by Sam Gorman

Estimate interest-only payments, later mortgage payments, payment jump, remaining balance, total interest, and budget gap.

Categories Finance

Debt Snowball Calculator

June 26, 2026 by Sam Gorman

Build a debt snowball payoff plan with total months, interest, first payoff win, and an optional highest-APR-first comparison.

Categories Finance

Balance Transfer Savings Calculator

September 19, 2026June 26, 2026 by Sam Gorman

Compare keeping your card vs a balance transfer, including fee, intro APR, payoff time, and the payment needed to finish in time.

Categories Finance

Credit Card Minimum Payment Calculator

June 26, 2026 by Sam Gorman

Estimate your first minimum payment, payoff time, interest, 3-year target payment, and extra-payment savings.

Categories Finance

Mortgage Rate Buydown Calculator

June 26, 2026 by Sam Gorman

Estimate a 1-0, 2-1, or 3-2-1 mortgage buydown cost, payment path, credit gap, exit use, and rate-buydown comparison.

Categories Finance

Mortgage Closing Costs Calculator

June 25, 2026 by Sam Gorman

Estimate mortgage closing costs and cash needed at closing, including down payment, credits, prepaids, escrow, and deposits.

Categories Finance

Mortgage Comparison Calculator

September 10, 2026June 25, 2026 by Sam Gorman

Compare two fixed-rate mortgage offers by payment, upfront costs, planned keep time, and break-even month.

Categories Finance

PMI Removal Calculator

June 25, 2026 by Sam Gorman

Check PMI removal routes, 80% and current-value targets, loan-to-value, PMI savings, and valuation fee payback.

Categories Finance

15 vs 30 Year Mortgage Calculator

September 29, 2026June 25, 2026 by Sam Gorman

Compare 15-year and 30-year mortgage payments, total interest, and a faster 30-year payoff using your lender quotes.

Categories Finance
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Advertiser disclosure: LumenCalculator.com is an independent, advertising-supported calculator site. Display ads may be served by partners such as Google. We may earn revenue from ads. Advertising does not influence calculator outputs.

About these calculators: Tools provide educational estimates based on formulas and common assumptions. Results are illustrative and may not match real-world components, tolerances, and environmental conditions. Verify against datasheets, standards, and professional guidance where relevant.

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