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Mortgage Calculator
Estimate your monthly mortgage payment, total interest cost, and full amortization schedule.
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Run the numbers before you make the move. Free tools for mortgages, savings, debt payoff, and more — with charts and shareable results.
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Compound Interest Calculator
See how your savings grow over time with compound interest and regular monthly contributions.
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Simple Interest Calculator
Calculate interest earned on a principal balance at a fixed rate without compounding.
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APY Calculator
Convert a nominal interest rate to its effective annual yield (APY) and see what a deposit earns.
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Loan Payoff Calculator
Find out when your loan will be paid off and how much interest extra monthly payments can save.
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Savings Goal Calculator
Plan how long it will take to reach a savings goal and how much to save each month to get there on time.
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Debt-to-Income Ratio Calculator
Calculate your front-end and back-end DTI ratios to see how lenders view your debt load.
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Ad RPM Calculator
Estimate display-ad revenue from your sessions and RPM — or work out the RPM you need to hit a monthly revenue goal.
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Mortgage Refinance Calculator
See your new payment, monthly savings, break-even point, and lifetime interest difference before you refinance your mortgage.
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Retirement Calculator (401k & Roth IRA)
Project your retirement balance with employer match and compound growth, and compare Traditional vs. Roth after-tax outcomes.
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FIRE Calculator
Find your FIRE number, how many years until financial independence, and the age you could retire early — based on your savings rate and returns.
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Rent vs. Buy Calculator
Compare the long-run cost of renting against buying — including equity, appreciation, and the opportunity cost of your down payment — and find your break-even year.
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Credit Card Payoff Calculator (Avalanche vs. Snowball)
Compare the debt avalanche and debt snowball methods across all your cards — see payoff time, total interest, and how much each strategy saves.
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Inflation Calculator
See how inflation changes the buying power of a dollar between any two years, using real U.S. CPI-U data — with the cumulative and annualized rates.
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Income Tax Calculator (Federal Brackets)
Estimate your U.S. federal income tax, marginal and effective rates, and take-home pay — with a bracket-by-bracket breakdown of how your income is taxed.
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