Tools
Stop-Loss Calculator — where should my stop go?
Calculate the right stop-loss price using percentage, dollar, or ATR-based methods. Long positions only — for planning, not financial advice.
Quick answer
A stop loss limits your downside. A common approach is ATR-based: Stop = Entry − (ATR × multiplier). For entry at $50 with ATR $1.50 and 2× multiplier: stop at $47.00. That adapts to each stock's volatility.
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Entry, stop, and targets — updated for the watchlist.
Definition
Stop (long) = Entry − distance · Risk/share = Entry − Stop
Result
Enter your entry, choose a method, then tap "Calculate stop-loss".
When should you use a stop-loss calculator?
Use it to set a clear exit level before you place a trade:
- •Setting an initial stop-loss on a new long position
- •Adjusting stop distance for volatile vs. calm stocks (try ATR)
- •Comparing percentage vs. dollar vs. ATR-based distances
- •Feeding risk per share into position sizing
How it works
- 1
Enter your price
Input the price you plan to buy the stock at.
- 2
Pick a method
Choose percentage, dollar, or ATR-based stop distance.
- 3
Get your stop
The calculator shows the stop price and risk per share (and total risk if you enter shares).
Example
Scenario: Buy MSFT at $420 with a 3% stop on 50 shares.
Calculation: Stop = $420 × (1 − 0.03) = $407.40. Risk = $12.60/share × 50 = $630.
Result: Place stop near $407.40. Total risk about $630 if the stop fills there.
Frequently asked questions
A stop-loss is a planned exit price (or order type) that closes a long position if the market moves against you. It caps how much you can lose per share relative to your entry, assuming the order fills near your stop level.
Quick reference table
Illustrative stops for a $50 long entry.
| Method | Entry | Stop loss | Risk/share | Notes |
|---|---|---|---|---|
| 2% fixed | $50.00 | $49.00 | $1.00 | Simple; may be tight in volatile names |
| 5% fixed | $50.00 | $47.50 | $2.50 | Common for swing holds |
| 1.5× ATR ($1.50) | $50.00 | $47.75 | $2.25 | Adapts to volatility |
| 2.0× ATR ($1.50) | $50.00 | $47.00 | $3.00 | Widely used ATR multiple |
| $3.50 below entry | $50.00 | $46.50 | $3.50 | Fixed dollar / structure-based |
Wider, volatility-aware stops (e.g. 2× ATR) often reduce noise stop-outs versus very tight fixed % on the same stock — but they also mean larger dollar risk per share unless you size down.
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Last updated: April 2026
FX13: AI Trading Signals provides free trading tools, calculators, and educational resources for active traders and investors. This page is not personalized investment advice. © 2026 Rakhimboy Rozmetov. FX13: AI Trading Signals
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