Stop Loss Calculator
Work backward from your maximum acceptable risk to a cleaner stop loss level. Calculate stop loss price, stop distance, total trade risk, and 1R, 2R, and 3R targets in one place.
Trade Inputs
Fill in your setup details. Results update instantly.
Results
Use these numbers before the trade is entered.
Build the Stop Before You Place the Trade
Use the calculator to work backward from maximum acceptable risk to a cleaner stop loss level. A well-defined stop makes position sizing, risk-reward planning, and execution discipline much easier.
How to Use This Stop Loss Calculator
Define the setup
Select long or short, then enter your entry price and position size before you calculate the stop.
Choose your risk limit
Use either percentage risk based on account size or a fixed dollar risk amount to define the maximum loss you accept.
Review stop and targets
Use the calculated stop loss price, stop distance, and 1R, 2R, and 3R target levels as part of your trade plan before entry.
This tool is especially useful when you already know your entry and position size and want to derive the correct stop loss from your maximum acceptable trade risk.
If you need to determine position size first, use our Position Size Calculator. If you want to compare downside and upside after placing the stop, use our Risk Reward Calculator.
What This Stop Loss Calculator Shows You
Stop Loss Price
The price where the trade should be exited if it moves far enough against you.
Allowed Risk
The maximum total amount you are willing to lose on the full trade.
Stop Distance
The chart-based price distance between entry and stop loss.
Total Risk per Unit
The per-unit risk after optional fees or slippage are included.
Total Trade Risk
The full trade-level downside across the entire position size.
1R, 2R, and 3R Targets
Projected target levels built from the chart stop distance so you can structure the trade more clearly.
This turns a vague idea like “I only want to risk $100” into an actionable stop loss level tied to the actual size of the trade.
Quick Stop Loss Risk Reference
Many traders think in account risk percentages first. This quick table shows what common risk levels mean across different account sizes.
| Account Size | 0.5% Risk | 1% Risk | 2% Risk |
|---|---|---|---|
| $1,000 | $5 | $10 | $20 |
| $5,000 | $25 | $50 | $100 |
| $10,000 | $50 | $100 | $200 |
| $25,000 | $125 | $250 | $500 |
| $50,000 | $250 | $500 | $1,000 |
Your actual stop loss price still depends on entry price, position size, and optional fees or slippage.
Stop Loss Formula
The basic idea is simple:
Allowed Risk ÷ Position Size = Total Risk per Unit
If you include fees or slippage, the chart-based stop distance becomes:
Total Risk per Unit − Fees/Slippage per Unit = Price Risk per Unit
For a long trade, the stop loss sits below entry. For a short trade, the stop loss sits above entry. This calculator handles that direction automatically.
The goal is not to create a magical stop. The goal is to define downside in a consistent way that matches your trade size and maximum acceptable loss.
Example Stop Loss Calculation
Suppose you plan a long trade with an entry at $100, a position size of 20 shares, and an allowed risk of $100.
Your total risk per unit is:
$100 ÷ 20 = $5
That means your stop loss price would be:
$100 − $5 = $95
Your 1R target would be $105, your 2R target would be $110, and your 3R target would be $115.
Stop Loss Habits That Help
Good Habits
- Define maximum trade risk before entry
- Tie the stop to actual position size
- Include costs when they matter
- Use 1R, 2R, and 3R levels to plan exits
- Keep stop placement consistent across your workflow
Common Mistakes
- Placing stop losses randomly without a risk plan
- Ignoring fees and slippage
- Using the same stop logic in all conditions
- Setting stops too tight in volatile assets
- Changing the stop emotionally after entering the trade
A good stop loss does not guarantee a winning trade. It simply helps define the trade clearly before execution.
Stop Loss Calculator FAQ
What is a stop loss calculator?
A stop loss calculator helps traders determine where a stop loss price should be placed based on entry price, position size, and maximum acceptable risk.
How do you calculate a stop loss?
At a basic level, you divide allowed total risk by position size to get total risk per unit, then place the stop below or above entry depending on whether the trade is long or short.
Can I use this stop loss calculator for stocks, crypto, and forex?
Yes. It works for most price-based markets where you can define entry price, position size, and acceptable risk.
Why does position size matter for stop loss placement?
Because the larger the position, the smaller the price move needed to create the same total trade risk.
Should I use this together with a position size calculator?
Yes. Position size tells you how large the trade should be, while stop loss planning helps translate chosen risk into an actual exit level.
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Financial Disclaimer
The content on ChartWiseHub.com is provided for educational purposes only and does not constitute financial or investment advice. Trading and investing involve risk, and you should never invest money you cannot afford to lose. Always do your own research or consult with a licensed financial advisor before making financial decisions.