ADVANCED PLANNING · FREE PREVIEW

Compare two savings plans.

Keep the starting balance, rate and horizon constant to see how changing your contribution affects the estimate.

What changes, and what stays constant?

Both scenarios start with the same balance and use monthly compounding at the nominal annual rate divided by twelve. Contributions arrive at month end. The difference includes both extra contributions and their hypothetical growth. It is not a predicted investment return.

A checkable example

Starting with $1,000 at zero interest over two years, $100 a month produces $3,400. Saving $200 a month produces $5,800. The $2,400 difference equals the additional $100 contributed over 24 months.

Limitations

The model excludes fees, taxes, inflation and changing rates. Use a realistic contribution that fits essential spending and debt commitments. Results stay on this page and CSV exports are created on your device.

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