What is the Stop-Loss / Take-Profit Calculator?
A stop-loss and take-profit calculator turns your entry price and your intended risk and reward into the exact price levels where you should place your stop-loss and take-profit orders. Instead of eyeballing the chart, you get precise numbers you can drop straight into your broker's order ticket.
It works for both long and short positions. You decide how far — as a percentage of price — you are willing to let the trade move against you (risk) and how far you expect it to move in your favour (reward), and the calculator returns the two price levels plus the resulting risk/reward ratio and break-even win rate.
How to use it
- 01Choose your direction — long (buy) or short (sell).
- 02Enter your entry price — where you plan to open the position.
- 03Enter your risk as a percentage of price — how far the stop sits from entry.
- 04Enter your reward as a percentage of price — how far the target sits from entry.
- 05Read the exact stop-loss and take-profit price levels, along with the risk/reward ratio and the minimum win rate needed to break even.
The formula
Risk/Reward = Reward distance ÷ Risk distance; Break-even Win Rate = 1 ÷ (1 + Risk/Reward).
Worked example
You go long at $100 with 2% risk and 6% reward.
Stop-loss = $100 × (1 − 0.02) = $98; take-profit = $100 × (1 + 0.06) = $106.
That is $2 of risk against $6 of reward — a 1:3 ratio, so you only need to win about 25% of the time to break even.
Frequently asked questions
How do I calculate stop-loss and take-profit levels?+
Pick a risk distance and a reward distance from your entry — usually as a percentage of price. For a long, subtract the risk % from entry for the stop and add the reward % for the target; for a short, do the reverse. This calculator does it instantly for both directions.
What is a good stop-loss percentage?+
There is no universal number — it depends on the instrument's volatility and your strategy. Many swing traders use 2–8%, while intraday traders often use tighter stops. The key is that the stop sits beyond normal noise but keeps your dollar risk within your position-sizing budget.
Does this work for short positions?+
Yes. Set the direction to short and the calculator flips the maths: your stop-loss goes above entry and your take-profit goes below, because a short profits when price falls.
How does this relate to position sizing?+
This tool gives you the price levels; a position size calculator then tells you how many shares or units to trade so that hitting the stop costs only your intended dollar risk. Use them together — levels first, size second.
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For educational purposes only. Not financial advice.