Monthly Savings For Target
Calculator

Inputs

Monthly contribution needed
721.507007

Results

Monthly contribution needed
721.507007
Total contributions
216,452.102228
Growth from returns
283,547.897771

Retirement planning results

Monthly contribution needed721.507007
Total contributions216,452.102228
Growth from returns283,547.897771

formula-map diagram

Monthly contribution needed
721.507007
Total contributions
216,452.102228
Growth from returns
283,547.897771

Retirement planning relationship

Formula

PMT = FV × i ÷ ((1 + i)^n - 1)

= 721.50700742757

Note

This is not financial advice. It is a simplified model: it applies the displayed standard formula to the figures you entered, assumes a single constant rate for every year, and ignores taxes, fees, sequence-of-returns risk, health costs, longevity risk and any country's specific pension, benefit or minimum-distribution rules. Real returns can be negative and real retirements rarely follow a smooth curve. Check the assumptions and consult a licensed adviser before acting on any figure.

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Frequently asked questions

What does this calculator solve for?+

Given a target amount, a time horizon, a starting balance, and an assumed rate of return, it works out the fixed monthly contribution needed to reach that target by the deadline. It's a standard future-value-of-annuity problem solved for the payment.

Why does the required monthly amount drop so much with a longer time horizon?+

Compound growth does more of the work the longer money is invested, so contributions themselves can be smaller — this is the main reason starting early matters more than the total percentage of income saved.

What return rate should I assume?+

A common approach is to use a conservative long-term estimate net of inflation (often 4-7% for a diversified stock/bond portfolio, lower for cash-heavy goals), rather than an optimistic recent-year return, since overestimating the rate understates the true savings needed.

Does the calculator assume I contribute at the start or end of each month?+

Most implementations assume end-of-month contributions with growth applied monthly; if it instead assumes start-of-month, the required amount will be very slightly lower, since each contribution earns one extra month of growth. This is a minor effect that generally doesn't need adjustment.

What if my starting balance already covers part of the goal?+

The calculator factors in the future value your current balance will grow to on its own, then computes only the extra monthly contribution needed to close the remaining gap. If your existing savings already outgrow the target on their own, the required contribution can come out to zero or negative.