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Pick a question. Each calculator answers it in plain words, then shows the year-by-year math behind it.

Try it: investment growth

In 10 years you would have

$125,869

$10,000 to start and $500 a month at 10% a year. You put in $70,000 and earn $55,869.

Monthly contribution

Years

Every result comes with the year-by-year table it came from.

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How it works

Three steps, no sign-up

Pick a question
Start from what you want to know, not from a formula name.
Adjust a few numbers
Sensible defaults are filled in. The answer updates as you type.
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