Stop Loss Calculator
Calculate your optimal stop loss price based on your risk tolerance. Determine the exact exit point to protect your capital.
Buying a stock at $100 with a $50,000 account and 2% risk tolerance? Your maximum loss is $1,000 — place your stop loss at $90 if buying 100 shares.
Enter Trade Details
Calculate your stop loss and position sizeResults
Your stop loss and position sizingEnter your trade details and click calculate to see your stop loss price and position size.
Understanding Stop Losses
Key concepts for managing risk in your trades
Why use a stop loss?
A stop loss is your safety net. It automatically exits a trade when the price moves against you, preventing small losses from turning into account-destroying ones. Professional traders consider risk management more important than finding the perfect entry — because even the best setups can fail.
Without a stop loss, emotions take over. You hold losing positions hoping they'll recover, and what started as a 5% dip becomes a 30% drawdown. A predefined stop loss removes emotion from the equation and keeps losses predictable and manageable.
How to choose the right stop loss level
The best stop loss gives your trade room to breathe without risking too much capital. A percentage-based stop (e.g., 5-10% below entry) works for most swing trades. For volatile stocks, an ATR-based stop adapts to the stock's natural price swings so you don't get stopped out by normal fluctuations.
The key rule: never risk more than 1-2% of your account on a single trade. This means adjusting your position size based on how far away your stop is. A wider stop requires fewer shares; a tighter stop allows a larger position. Let the stop loss distance determine your position size, not the other way around.
Your Privacy is Protected
All calculations run entirely in your browser. We never collect, store, or transmit any data you enter into this calculator. There are no APIs, no server requests, and no logs - your financial information stays on your device and disappears when you close the page.
For informational and educational purposes only — not investment advice.