Free compounding calculator for forex, trading, and investments. Project your compound growth across daily, weekly, monthly, quarterly, semi-annual, or annual periods — with lot size tracking and actual vs projected comparisons.
← Back to MsPips.comA compounding calculator projects how your investment or trading account grows over time when earnings are reinvested. Instead of earning returns only on your initial balance, compound growth means you earn returns on your returns — accelerating your account growth exponentially.
In forex trading, compounding works by reinvesting your profits and increasing your position sizes proportionally as your account grows. For example, if you earn 5% weekly on a $1,000 account, you'd earn $50 the first week. The next week, you'd earn 5% on $1,050 — and so on, creating exponential growth over time.
This calculator supports daily, weekly, monthly, quarterly, semi-annual, and annual compounding — covering everything from active day trading to long-term investment strategies.
These columns let you track your real-world results alongside your projections. Click "Make Changes" to enter your actual earnings for each period, and the calculator will automatically compute your actual running balance for comparison.
The lot size starts at your specified Starting Lot Size and increases by the Lot Size % Increment each compounding period. This models the real-world practice of increasing position sizes as your account grows.
Date ranges marked with an asterisk (*) indicate prorated periods. These occur when the start or end date falls mid-period, meaning the period has fewer trading days than a full period. The projected earnings for these periods are adjusted proportionally based on the number of actual trading days.