Crypto Position Size Calculator
Work out how much to buy for any crypto trade. Enter your account size, how much you are willing to risk, your entry and your stop loss. Works for long and short trades, free and without signing in.
Calculator
Optional: take-profit and fees
- Amount at risk
- —
- Position size
- —
- Position value
- —
- Share of your account
- —
- Trade direction
- Long
Stop loss below entry means a long trade; above entry means a short trade.
Works on any phone, no app needed. You can add this page to your home screen.
How the calculation works
Position sizing starts from the amount you are willing to lose, not from the profit you hope for.
- Amount at risk = account size × risk per trade.
- Stop distance = the gap between your entry and your stop loss.
- Position size = amount at risk ÷ stop distance.
Example
With a 1,000 USDT account and 1% risk, you are willing to lose 10 USDT. If you buy at 100 with a stop loss at 95, the stop distance is 5. So the position size is 10 ÷ 5 = 2 coins, worth 200 USDT. If the stop is hit, you lose 10 USDT, exactly the amount you planned.
A wider stop means a smaller position; a tighter stop means a larger one. The risk in money stays the same.
Related guide: How to calculate position size in crypto
Get signals with the stop loss already set
Every ALPHAVYN signal comes with an entry, a stop loss and two targets, and its own built-in position size calculator. Free, no account needed.
Common position sizing mistakes
- Sizing from the account, not the stop. Putting a fixed amount into every trade ignores how far the stop is. A wide stop with the same size risks far more money.
- Moving the stop after sizing. If you widen the stop later, the loss at the stop grows beyond what you planned. Re-calculate the size instead.
- Forgetting fees and slippage. Real losses are a little larger than the calculation. Add the fee field or keep a small buffer.
- Raising risk after a loss. Increasing the risk to "win it back" is how small drawdowns turn into large ones. Keep the percentage fixed.
Questions
Is there a position size calculator app?
You do not need one. This page works in any phone browser, and you can add it to your home screen (in the browser menu, choose "Add to Home screen") to open it like an app.
What is position sizing?
Position sizing means choosing how much to buy so that, if your stop loss is hit, you lose only the amount you decided in advance. It turns a trade idea into a size that fits your risk.
How much should I risk per trade?
That is your decision and depends on your situation. Many traders keep the risk per trade small, often around 1 to 2 percent of the account, so that a run of losing trades does not wipe them out.
Does leverage change the result?
Leverage does not change how much you lose when the stop loss is hit, but it adds the risk of liquidation and makes mistakes more costly. ALPHAVYN does not recommend using leverage. If the position size is larger than your account, lower the risk per trade instead.
Are fees and slippage included?
No. Real losses can be a little larger because of trading fees, spreads and slippage, and a stop loss is not guaranteed to fill exactly at its price. Keep a small buffer.
Guides for this tool
More free tools
- Chart analysisFree live crypto charts with drawing tools, 25 indicators and replay.
- Risk/reward calculatorCompare what you could lose with what you could gain, plus the win rate needed to break even.
- Stop loss and take profit calculatorStop price from a % or price, and take-profit prices at 1R, 1.5R, 2R and 3R.
- Break-even calculatorThe exit price that covers trading fees on entry and exit, long or short.
- Crypto profit calculatorProfit or loss of a long or short trade after trading fees, in USDT and percent.
- DCA calculatorWhat buying a fixed amount every day, week or month would be worth today, with real prices.
Every formula is shown on its page with a worked example. Spotted something that looks wrong? Email [email protected]. We appreciate it. How our tools work
This calculator is for information and education only and is not financial advice. Crypto trading carries a high risk of loss. Risk Disclosure