Forex Calculators
Compounding Calculator
How a steady return grows an account period by period
Reinvesting your gains means each period earns a return on the last period's profit as well as your original stake — that is compounding, and over time it curves upward fast. Set a starting balance, a return per period, and a number of periods to see where a consistent edge could take an account.
For planning and education only. Results exclude broker spread, swap and commission, and are not financial advice.
How to use it
- 1Enter your starting balance.
- 2Enter the return you expect per period, as a percent (be conservative — a modest, repeatable number tells the truer story).
- 3Enter how many periods to compound over, and label the period as a day, week, month or year.
- 4Read the final balance, total gain and total return, and scan the period-by-period schedule below.
Frequently asked questions
Is a fixed return per period realistic?
No real account returns the same percentage every period — markets are streaky. Treat this as a planning model that shows the shape of compounding, not a promise. Use conservative numbers.
What if my return is negative?
Enter a negative percentage and the model compounds losses the same way — the balance curves downward. It is a useful way to see how a run of losing periods erodes an account.
Why does the table stop at 24 rows?
The final balance and totals always use your full number of periods. The schedule just caps its rows at 24 to stay readable; the headline results above it are exact for however many periods you entered.