Quiet Zeros

Calculators / Saving & investing

Savings goal

Name the number and the date; get the monthly amount that hits it. Nothing you type leaves this page.

$

Enter $1 to $50,000,000.

$

Enter $0 to $50,000,000.

years

Enter 3 months to 50 years.

%

High-yield savings accounts have recently paid 3.5–5%.

Enter 0 to 15%.

Set aside each month

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Total you'll deposit

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Interest earned

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Months

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Projected balance to goal

Balance by year

How this is calculated

The tool solves the future-value equation for the monthly deposit m:

goal = current × (1 + i)ⁿ + m × [ (1 + i)ⁿ − 1 ] / i  — i is the monthly rate, n the number of months.

Your existing savings keep compounding on their own, so the further away the date, the more of the work interest does for you — and the smaller the monthly ask.

Notes

Assumes a steady APY, deposits at each month's end, and no withdrawals. Savings rates float, so revisit when your bank changes theirs. For goals more than ~10 years out, also glance at the compound interest tool with investment-level returns.

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