Master Your Investments in One Place
Secure & Private. ROI, Compound Interest, Average Down, and Risk Management Tools.
Simple ROI Calculation
Total Return
0.00%
Net Profit
$0
Total Fees
$0
Compound Interest Calculator
Estimated Future Value
$0
Average Down Calculator
Current Position
New Purchase
New Average Price
Updated
0
Total Quantity
0
Total Invested
0
Tip: Dollar Cost Averaging (DCA) is a strategy to reduce the impact of volatility.
Position Sizing & Risk/Reward
* Recommended 1~2%
Recommended Position
Position Value
$0
Quantity to Buy
0
Max Loss (Risk)
$0
Risk/Reward Ratio
1 : 0.0
Why use this Investment Calculator?
100% Private & Secure
No data is sent to any server. All calculations happen locally in your browser, ensuring your financial data remains private.
Fast & Accurate
Get instant results for ROI, CAGR, and Risk Management without complex spreadsheets or formulas.
Mobile Optimized
Designed for both desktop and mobile devices. Check your portfolio and calculate risks on the go.
Key Features Guide
- ROI (Return On Investment): Calculate simple profit percentages including buy/sell fees to know your true net profit.
- Compound Interest Calculator: Visualize the power of compound interest. See how monthly contributions grow your wealth over 10 or 20 years.
- Average Down Calculator: Plan your "water-down" strategy. Calculate the new average price when buying more assets at a lower price.
- Risk Management (Position Sizing): Calculate exactly how many shares to buy based on your account size and risk tolerance (e.g., risking only 2% per trade).