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Savings Growth Calculator

Create an illustrative savings projection from an initial balance, monthly contributions, a user-entered rate, and duration.

Results are illustrative projections based on entered assumptions, not guarantees. Actual outcomes may differ.
Projection assumptions
Monthly and end-of-month are visible defaults. Change them to compare another supported assumption.
USD
USD

Contributions are added monthly.

%

Enter a decimal rate from -100% through 100%. It is an assumption, not a forecast.

years

Enter a whole number from 1 through 100.

Currency labels values only. Changing it does not convert or alter numbers, and no exchange rate is fetched.

How the projection works

The projection simulates monthly contributions and applies the selected compounding frequency to the running balance. Full internal precision is retained, with formatting applied only when values are displayed.

Assumptions

  • The entered annual rate remains constant for this illustration.
  • The same monthly contribution is added at the selected timing.
  • Returns are applied at the selected compounding frequency.

What is not included

  • Savings rates may change and actual outcomes may differ.
  • Inflation, fees, taxes, withdrawals, and missed contributions are not automatically included.
  • A negative real-world return is possible even when an entered example is positive.
  • This calculator does not recommend a bank account or savings product.

Worked example

With $5,000.00 initially, $300.00 added monthly at the end of each month, a 4% illustrative annual rate, monthly compounding, and 10 years, the shared engine projects $51,629.10. This is an illustration, not a promised outcome.

Educational disclaimer

Fees, taxes, inflation, market volatility, timing, withdrawals, and missed contributions can affect actual outcomes.

This calculator does not provide financial, tax, legal, or investment advice. Review important decisions with a qualified professional where appropriate.

Review the methodology, editorial policy, and disclaimer.

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