Forex Compound Calculator

See how repeated hypothetical gains and losses change a balance over time. Compare fixed percentage changes with a mixed win/loss sequence and view the calculations.

Build a scenario

All calculations run in your browser.

Display currency

Starting balance

Period represents

Number of periods

Return per period (%)

Amount added at period end

Modeled cost each period (%)

Costs are applied after each percentage change, before any additional amount is added.

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Scenario results

Illustrative results, not predicted returns.

HYPOTHETICAL ENDING BALANCE — Enter values to calculate

Net gain / loss —

Total contributed —

Extra amounts added —

Modeled costs —

Gain / paid-in capital —

Path drawdown —

Drawdown reflects only this illustrative balance path. Deposits can distort balance-based drawdown.

Forex trading can involve substantial losses. This calculator is an educational arithmetic tool, not a market forecast or trading recommendation.

Step-by-step calculation

See how each percentage change affects the balance.

Balance growth chart

Period-by-period breakdown

Period	Opening balance	Return %	Return amount	Cost	Added	Closing balance
Calculate to see the schedule.

How Forex Compounding Works

Compounding means that each percentage change is applied to the balance remaining after previous changes. Positive returns can increase the base, while negative returns reduce it. These figures depend entirely on your assumptions and are not predictions.

Forex Compound Formula

Final balance = Starting balance × (1 + Return / 100) ^ Number of periods

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Forex Compounding Calculator

Change the settings below to calculate your result. You can check the assumptions further down this page.

Display currency

Calculation method

Projected balance = initial balance × (1 + assumed change per period) ^ number of periods.