EA Growth Projection Calculator
What could my EA account look like over the next 36 months under these trading assumptions?
36-month projection
Estimated Scenario — Not a Forecast
Inputs have changed. Select Calculate Projection to update the results.
Projection Summary
Stress-test these assumptions
The projection above is one smooth path. These tools show the losing streaks, drawdowns and range of outcomes the same statistics can produce. Your inputs are passed in the link only and are not saved.
36-Month Estimated Account Growth
Month-end balance. Estimated Scenario — Not a Forecast.
Estimated Monthly Growth %
A constant-assumption model produces smooth monthly figures. Live trading does not; months vary and losing months occur.
Scenario comparison
Monthly projection table
Backtest context
Assumptions used
Methodology
Important: Estimation Only
This calculator provides mathematical projections based on the assumptions and historical/backtest statistics entered by the user. It is not a guarantee or prediction of future trading results. Actual EA performance may vary significantly due to market conditions, volatility, liquidity, spread, slippage, execution quality, commission, swap, news events, market sentiment, changes in market regime, broker conditions and differences between backtest, forward-test and live trading.
Past performance and backtest results do not guarantee future results.
How the EA growth projection is calculated
The projection turns your EA's statistics into an expected result per trade, measured in R (one unit of the amount risked):
Expected R = win rate × reward-to-risk − (1 − win rate) × 1R − costs in R
Each month the calculator multiplies that expectancy by the number of trades (trades per day × trading days) and by the amount risked per trade. With compounding on, the risk amount is recalculated from each month's starting balance, and every month starts exactly where the previous month ended.
Worked example
A 55% win rate with an average reward of 2R gives 0.55 × 2 − 0.45 = +0.65R per trade. At 3 trades a day over 22 trading days that is 66 trades, so a month is expected to add 66 × 0.65 = 42.9R. Risking 1% of the month's starting balance, a $1,000 account ends month 1 at about $1,429, and month 2 starts from that figure.
Because this compounds a constant expectancy, results grow exponentially. Treat the output as a picture of your assumptions, then use the Conservative scenario and the drawdown calculator to test how fragile they are.
Frequently asked questions
How does the EA growth projection work?
Each month starts from the previous month's ending balance. The calculator multiplies the number of trades in the month by the expected result per trade (win rate × reward − loss rate × 1R, minus costs) and by the amount risked per trade, which is set from that month's starting balance when compounding is on.
Why is the projected balance so large?
Compounding a constant positive expectancy for 36 months grows exponentially. Real trading has losing streaks, changing win rates, broker lot limits and liquidity constraints that this model does not include, so large figures should be read as a property of the assumptions, not as an expected outcome.
What do the Conservative and Optimistic scenarios change?
By default the Conservative scenario lowers the win rate by 5 points, reward-to-risk by 15% and trade frequency by 20%. The Optimistic scenario raises them by 3 points, 10% and 10%. All six adjustments can be edited under Advanced Settings.
Are my inputs saved or sent anywhere?
No. All calculations run in your browser. The page has no account, no database and no cookies, and your numbers are gone when you refresh or close the page.