Fortune Orb

Financial Calculators

Free financial calculators for investing, mortgages, home buying and retiring early. See the full breakdown behind every number.

Growing money

Investment Calculator

Project compound growth from a starting balance and recurring contributions, then read year by year what you put in versus what you earned.

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FIRE Calculator

Model every account you own — taxable, 401(k), IRA, Roth and HSA — against its penalty-free age, then read how much of your spending the dividends actually cover through the gap years.

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Buying a home

Home Purchase Calculator

Race your investments against home appreciation to find the year you can finally cover the down payment, then read the mortgage you would sign at that future price.

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Mortgage Calculator

Work out principal and interest, add taxes, insurance and HOA for the real monthly number, then read the full amortization schedule.

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Debt-to-Income Ratio Calculator

Add up your income and monthly debts to get the DTI lenders actually use, including the discount they apply to investment and rental income.

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Owning a home

Home Equity Calculator

Track the equity you build as your home appreciates and your loan shrinks, then switch to what a sale would really pay once selling costs, the mortgage payoff and the $250,000 capital gains exclusion come out.

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