Free Trading Calculators & Risk Tools
Three calculators that answer the questions you should settle before you place a trade: how big should this position be, is the reward worth the risk, and what would getting out early actually have saved? All free, no account required.
Position Size Calculator
Work out exactly how many shares to buy so a losing trade costs you a fixed percentage of your account — the single most effective way to survive a losing streak.
Risk/Reward Ratio Calculator
Enter your entry, stop and target to get the reward-to-risk ratio and the win rate you would need to break even at that ratio.
Bearish Savings Calculator
See what exiting on a bearish signal would have saved versus holding through the drawdown, for any position size.
Want the signals behind the numbers?
The calculators tell you how much to risk. Stock Companion tells you when the news has turned — live sentiment from state-of-the-art AI models trained specifically on financial data, AI buy/sell signals, and insider and congressional trade tracking on every ticker you follow.
Create a free accountThese tools are for education and position planning only and are not financial advice. Read our methodology.