Compound Interest Calculator
See how your trading account can grow with the power of compounding. Calculate potential growth based on starting balance, monthly returns, and regular contributions.
Growth Parameters
Optional: Add funds each month
Starting with $10,000.00, earning 5% monthly for 1 year.
Projected Growth
Important: This calculator shows potential growth with consistent returns. Actual trading results vary — past performance doesn't guarantee future results. Use for educational purposes only.
What is Compound Interest?
"Compound interest is the eighth wonder of the world. He who understands it, earns it; he who doesn't, pays it."
Compound interest is the process of earning returns on your returns. Unlike simple interest, where you only earn on your original investment, compound interest means your profits also generate profits over time.
Simple Interest Example: $10,000 at 5% monthly = $500/month = $6,000 profit after 1 year
Compound Interest Example: $10,000 at 5% monthly compounded = $7,959 profit after 1 year (33% more!)
The Compound Interest Formula
With monthly contributions: Each month the formula becomes: Balance = (Previous Balance + Contribution) × (1 + r)
The Power of Compounding in Trading
Small differences in monthly returns create massive differences over time. Here's how $1,000 grows at different rates:
| Starting Balance | Monthly Return | After 1 Year | After 2 Years | After 5 Years |
|---|---|---|---|---|
| $1,000 | 3% | $1,426 | $2,033 | $4,384 |
| $1,000 | 5% | $1,796 | $3,225 | $18,679 |
| $1,000 | 8% | $2,518 | $6,341 | $101,257 |
| $10,000 | 5% | $17,959 | $32,251 | $186,792 |
*Assumes consistent monthly returns with no withdrawals
How Monthly Contributions Boost Growth
Adding regular contributions dramatically accelerates your growth. The earlier you add capital, the more time it has to compound.
$10,000 at 5%/month for 2 years
$10,000 + $500/mo at 5%/month for 2 years
That's more than double the final balance by adding just $500 per month. The contributions themselves total $11,500, but they generated an additional $22,688 through compounding!
Realistic Expectations for Forex Trading
Professional Target: 2-5% Monthly
Most successful traders target consistent 2-5% monthly returns with proper risk management.
Higher Returns = Higher Risk
Returns above 10% monthly are possible but come with significantly higher risk and are difficult to maintain.
Consistency Over Big Wins
Steady 3% monthly beats occasional 20% months followed by losses. Compounding rewards consistency.
Learn more about risk management and getting started with forex trading.
Frequently Asked Questions
What's a realistic monthly return for forex trading?
Professional traders typically target 2-5% monthly returns with proper risk management. Higher returns are possible but come with significantly higher risk. Consistency is more important than occasional large gains.
How does compounding work in forex?
In forex, compounding means reinvesting your profits by increasing position sizes proportionally as your account grows. For example, if you risk 1% per trade, a $10,000 account risks $100, while a $20,000 account risks $200.
Should I withdraw profits or let them compound?
This depends on your goals. Letting profits compound accelerates growth, but regular withdrawals reduce risk and provide income. Many traders do both — withdraw a portion and compound the rest.
Is 10% monthly return realistic?
10% monthly (120%+ annually) is extremely difficult to achieve consistently. While possible in short periods, maintaining this long-term is rare. Most successful traders target more modest but sustainable returns.
How long does it take to double my account?
With consistent 5% monthly returns, your account doubles in approximately 14-15 months. At 3% monthly, it takes about 24 months. Use the calculator above to see your specific scenario.
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