Simulate capital growth with interest on interest. Useful for projecting growth with compound interest, comparing scenarios with different rates and planning a financial goal with applied capital.

When to use it

project growth with compound interest: It helps to visualize how rate and term magnify the effect of interest on interest.
compare scenarios with different rates: It serves to test whether an additional fee really changes the final amount.
plan financial goals with invested capital: Allows you to review your horizon and expected return before investing.

How to read the result

Use Final Amount as the primary reading for the reported scenario.
Compare Total Interest and Profitability to understand the context and not just look at an isolated number.
Review the set of results before deciding, because one output can complement or limit the other.

Inputs that deserve attention

Initial capital (R$): It is one of the base values that feed the main account. Review whether this value represents exactly the scenario you want to test.
Monthly fee (%): Determines the percentage applied in the informed scenario. Use the same rate time basis throughout the calculation.
Period (months): Controls how long the rule will apply. Term on a different basis than the rate generates distorted comparison.

Method used

Formula: M = C * (1 + i)^n
The account combines Initial Capital (R$), Monthly Rate (%) and Period (months) to generate Final Amount, Total Interest and Profitability.
The form applies basic validations to block inputs that are incompatible with the main rule.

Limits and validation

The simulation depends only on the fields filled in and does not include external costs that have not been informed.
Changes in rules, tariffs, taxes or commercial conditions may change the actual value.
The calculation rules are declared in the tool catalogue, with no hidden manual steps.

Explore by category: Finance

Simulations and calculations for money, credit, and investments.

Finance

Explore by category

Simulations and calculations for money, credit, and investments.

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FAQ

How to use compound interest?

Fill in the mandatory fields and the result appears automatically without having to submit a form.

Are the values approximate?

Calculations follow standard formulas and rounding to two places when applicable. Use as a simulation.