This free stop-loss and take-profit calculator turns four prices into a clear read on a trade: your risk-reward ratio, the dollars you are risking, the dollars you could make, and the breakeven price once fees are covered. Enter your entry, stop-loss, take-profit, and position size, and it updates instantly. Everything runs in your browser, so nothing you type is saved or sent anywhere.

Estimates for educational purposes only. Assumes a long position; for a short, the stop sits above entry and the target below. Not financial advice.

How to Use the Stop-Loss & Take-Profit Calculator

Enter the entry price you plan to buy at, the stop-loss price where you will cut the trade if it goes wrong, and the take-profit price where you will lock in gains. Add your position size in coins, and optionally your exchange's trading fee per side to see a realistic breakeven. The calculator instantly shows your risk-reward ratio, how much you are risking in dollars, and how much you stand to make.

The Formula Behind It

  • Risk per coin = |entry price − stop-loss price|
  • Reward per coin = |take-profit price − entry price|
  • Risk-reward ratio = reward per coin / risk per coin
  • Amount at risk = risk per coin × position size
  • Potential reward = reward per coin × position size
  • Breakeven (long) ≈ entry × (1 + 2 × fee %)

A Worked Example

Say you buy at $30,000, set a stop-loss at $28,500 and a take-profit at $34,000, with a 0.5 coin position and a 0.1% fee per side. Your risk per coin is $1,500 and your reward per coin is $4,000, a risk-reward ratio of 1 : 2.67. Across 0.5 coins that is $750 at risk to make $2,000. In percentage terms you are risking 5% for a 13.3% gain, and your breakeven sits at about $30,060 once the round-trip fee is covered. A ratio near 1 : 2.67 means you only need to win around three trades in eight to break even overall.

Why the Ratio Matters More Than the Win Rate

New traders obsess over being right, but professionals obsess over the ratio. With a 1 : 3 risk-reward you can lose 70% of your trades and still make money, because the winners more than pay for the losers. That is why every plan should define the stop and target before entry, and why moving a stop to avoid a loss quietly destroys the math. To go deeper, read our guides to crypto risk management and crypto order types, and size the position itself with our position size calculator.

Common Mistakes to Avoid

  • Setting the target first. Decide where you are wrong (the stop) before you dream about the reward.
  • Taking trades below 1 : 1. Risking more than you aim to make needs a very high win rate to survive.
  • Placing the stop at an obvious round number. Give it room to breathe beyond the noise, then size down to keep the dollar risk fixed.
  • Forgetting fees. On small moves, round-trip fees can be the difference between a winning and losing trade.

Practice Before You Trade for Real

Setting a stop is easy; honouring it under pressure is the hard part. With CustomCrypto, you can practise placing stops and targets across 38 cryptocurrencies at real market prices using virtual money, and learn to hold your plan before any real capital is on the line.

Frequently Asked Questions

What is a good risk-reward ratio?

A risk-reward ratio compares how much you stand to lose if your stop-loss is hit against how much you stand to gain if your target is reached. Many traders look for at least 1 to 2, meaning the potential reward is twice the risk, because it lets them stay profitable even when fewer than half of their trades win. The right ratio depends on your win rate: a strategy that wins often can work with a lower ratio, while a low win rate needs a higher one to come out ahead.

How do I calculate risk and reward on a trade?

Risk per coin is the distance between your entry price and your stop-loss, and reward per coin is the distance between your entry and your take-profit target. Multiply each by your position size in coins to get the dollar risk and dollar reward. Dividing the reward by the risk gives your risk-reward ratio. This calculator does all of that for you as soon as you enter the four prices.

What is a breakeven price?

Your breakeven price is the level the market must reach for you to cover trading fees and exit without a loss. Because you usually pay a fee both when you buy and when you sell, the breakeven sits slightly above your entry for a long trade. If you plan no further than your entry price, small fees can quietly turn a flat trade into a losing one, which is why the calculator shows it.

Is my data saved or sent anywhere?

No. This calculator runs entirely in your browser using JavaScript. Nothing you type is saved or sent to any server. When you close the tab, the numbers are gone. That matches CustomCrypto's privacy-first approach: your data stays on your device.

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CustomCrypto Team
CustomCrypto Team

We build free tools and write guides to help beginners learn cryptocurrency trading risk-free. Learn more about us.