Free financial tools and calculators

Tools and calculators we've built to help you visualize and navigate your financial journey.

ROI Calculator

See how to calculate the return on your investments and evaluate the gain or loss.

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See the performance of a Bogleheads three-fund portfolio based on the past 20 years.

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See how much house you can afford based on your income, loan details, debt and more!

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See how a portfolio would have performed, just remember that past performance isn’t indicative of future returns.

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