Stop Loss Calculator
Two tools in one: a quick "what price is X% below my entry?" calculator, plus a full trade planner with risk, reward and R:R
Just need a sell price? Enter the current price and a stop loss percentage — the price you should sell at appears below.
Add take-profit and position size to see total dollar risk, reward, R:R ratio and position cost. Stop loss % and price stay in sync — edit either one.
// What Is a Stop Loss?
A standing order with your broker that automatically closes a trade once price reaches a level you choose ahead of time. It removes the emotion from the "do I cut it?" decision and caps the dollar damage of any single trade.
// Long vs Short
For a long (you bought), the stop sits below the entry — sell if price drops. For a short (you sold first), the stop sits above entry — buy back if price rises.
// Choosing a %
Day trades typically use 0.5–2%, swing trades 3–8%, longer-term positions 10–20%. Wider stops mean smaller positions for the same dollar risk.
// Take Profit
The mirror of a stop loss — an order to lock in gains automatically when price hits your target. Setting both stop and target before entry is the core of disciplined trading.
// Risk : Reward
The ratio of how much you lose if wrong vs. how much you make if right. A 1:3 R:R lets you be wrong 75% of the time and still break even.
// Worked Example
Bought a stock at $100 and want a 10% stop loss? Sell price = $100 × (1 − 0.10) = $90. On 100 shares that's a $1,000 maximum loss.
// How to Use Online Stop Loss Calculator
- Enter or paste your source data into the tool input.
- Click the primary action button to run Online Stop Loss Calculator.
- Review the output, then copy or export your result.
// FAQ: What does Online Stop Loss Calculator do?
Online Stop Loss Calculator helps you two tools in one: a quick "what price is x% below my entry?" calculator, plus a full trade planner with risk, reward and r:r in your browser with instant results.
// FAQ: How do I use Online Stop Loss Calculator?
Paste or type your input, choose the needed action, and copy the generated output when the result is ready.
// FAQ: Is my data safe when using Online Stop Loss Calculator?
Yes. Processing runs in your browser session for this page, so your content is not uploaded by this tool workflow.
// FAQ: Can I use Online Stop Loss Calculator on mobile devices?
Yes. Online Stop Loss Calculator works on modern mobile browsers, so you can run it from phones and tablets.