2026topopentools

Stop Loss & Take Profit Calculator

Work out your stop-loss and take-profit exit prices by percent, price, or amount per share — for long or short trades — plus the potential loss, gain, and risk/reward ratio.

Percent (%)

Percent (%)

Frequently Asked Questions

How do I set a stop loss by percent?

Choose the % mode, then enter your entry price and a percentage (say 5). The tool computes the stop-loss price for you — for a long that is 5% below entry, and for a short it is 5% above.

Does it handle short positions?

Yes. Switch the direction to Short and the stop-loss sits above your entry while the take-profit sits below it, with the loss and gain figures flipped accordingly.

Does it show risk and reward?

Yes. When you enter both a stop-loss and a take-profit, it shows the risk/reward ratio derived from the distance of each level from your entry price.

Understanding the Stop Loss & Take Profit Calculator

The Stop Loss & Take Profit Calculator turns a trade idea into concrete exit prices. Enter your entry price and pick a direction — long or short — then define your stop-loss and take-profit each in whichever way you think: as a percentage, an exact price, or a fixed amount per share. The tool instantly returns both exit prices, how far each sits from entry, and, when you add a position size, the money you stand to lose or gain. With both exits set it also shows your risk/reward ratio, so you can confirm a trade is worth taking before you place it. Everything runs in your browser and is currency-aware.

How it works

Start with your entry price and direction. For a long, the stop-loss sits below entry and the take-profit above; for a short, those flip. Each level accepts three input modes. In percent mode the tool applies your percentage to the entry price. In price mode you type the exact exit level (it is validated to be on the correct side of entry). In per-share mode you give a money distance, which is added or subtracted from entry. From the resulting prices it measures the distance to each level, multiplies by your share count for potential loss and gain, and divides reward distance by risk distance to produce the risk/reward ratio.

Long: SL price = entry × (1 − SL% / 100), TP price = entry × (1 + TP% / 100). Short: SL price = entry × (1 + SL% / 100), TP price = entry × (1 − TP% / 100). Potential loss = |entry − SL price| × shares. Potential gain = |TP price − entry| × shares. Risk/reward = |TP price − entry| ÷ |entry − SL price|, shown as 1 : R.

Worked example

You go long 100 shares at an entry of $150. You set a 5% stop-loss and a 12% take-profit. The stop-loss price is 150 × (1 − 0.05) = $142.50 and the take-profit price is 150 × (1 + 0.12) = $168.00. Potential loss is (150 − 142.50) × 100 = $750, and potential gain is (168 − 150) × 100 = $1,800. Your risk/reward ratio is 1 : 2.4 — meaning each dollar risked targets $2.40 of reward.

Tips & common mistakes

  • Aim for a risk/reward of at least 1 : 2 so a few winners can cover several small losses.
  • Size your position from the stop distance: risk a fixed slice of your account (often 1–2%) and back out the share count.
  • Place stops at a level the price would not normally reach in noise — just past a support, resistance, or recent swing — not at a round percentage alone.
  • Use price mode when you already know the chart level you want, and percent mode when you are sizing risk by rule.
  • For short positions remember the stop is above entry, so an adverse move up is your loss — switch the direction toggle before reading results.
  • Account for slippage and spread; your real fill near a stop or target can differ from the calculated price, especially on volatile or thin stocks.

Related tools

CAGR CalculatorCompute the compound annual growth rate of an investment between two values.Dividend CalculatorEstimate annual, quarterly, and monthly dividend income and yield from your investment.Net Worth CalculatorAdd up your assets and liabilities to find your total net worth.Capital Gains Tax CalculatorEstimate the tax on profits from selling stocks, property, or other assets.

Reviewed by the TopOpenTools editorial team · Last updated June 2026. These tools provide general estimates for educational purposes only and are not financial, tax, insurance, investment, or medical advice. Verify important decisions with a qualified professional.