Your trade
The money in your trading account.
The share of your account you accept losing if the stop fills.
Stop below entry is a long. Stop above entry is a short.
Add a target to see reward to risk and profit.
Check your exchange fee page. Many charge between 0.1% and 0.6% per side.
Your result
—See result ↓
How to use this calculator
- Enter your account size. Use the money you actually have available to trade.
- Pick your risk per trade. This is the percentage you are willing to lose if the trade fails.
- Add your entry and stop-loss. The stop is the price where you exit to cap the loss.
- Read your position size. It updates instantly. Add a take-profit price to see reward to risk.
The numbers shown at first are only an example. Replace them with your own plan.
The position size formula
This is the math behind the result:
Amount at risk = account size × risk % Position size = amount at risk ÷ |entry − stop| Position value = position size × entry priceExample: with a $10,000 account risking 1% you can lose $100. If you enter at $100 with a stop at $95 each unit risks $5 so you buy 20 units. That position is worth $2,000 and if the stop fills you lose about $100. Fees and slippage would add a little more.
Want the full walkthrough? Read how to calculate position size in crypto and our guide to crypto risk management basics.
Why position size matters
You cannot control where the market goes but you can control how much a wrong guess costs. Sizing every trade from your stop keeps each loss small and the same. That makes a losing streak survivable and it makes your results easier to review in a trading journal.
Frequently asked questions
What is position size in crypto?
Position size is how much of an asset you buy or sell in one trade. A good position size is set by how much you are willing to lose if your stop-loss is hit. It is not set by how confident you feel.
How do I calculate position size for a crypto trade?
Multiply your account size by your risk percentage to get the dollar amount at risk. Then divide that amount by the distance between your entry and your stop-loss. The result is the number of units to buy. This calculator does it for you as you type.
How much of my account should I risk per trade?
Many educators teach keeping risk per trade small so that a losing streak cannot wipe out an account. Common examples are 0.5% to 2% but the right number depends on your plan and your comfort with losses. This tool lets you test different numbers instantly.
Does this calculator include trading fees?
Yes. Add the fee your exchange charges per side as a percentage. The calculator counts the fee on your entry and on your stop exit and reduces your size so the total loss still matches your risk amount.
Why does it say I need leverage?
If the position needed to risk your chosen amount is larger than your account then you would have to borrow to open it. That happens with tight stops or high risk percentages. Leverage can get a position liquidated before your stop fills so many beginners choose a wider stop or a smaller risk instead.
Does this work for short trades?
Yes. Put your stop-loss above your entry and the calculator treats the trade as a short. Put it below your entry for a long. Your take-profit target should sit on the opposite side from your stop.
Is this financial advice?
No. This is an educational calculator. It does the arithmetic on the numbers you enter and it cannot know your full situation. Real trades can lose more than planned because of slippage and gaps.
More from CCF
Educational content only. CCF provides general education about digital assets, trading and investing. This tool gives estimates from the numbers you enter. It is not individualized financial, investment, legal or tax advice and CCF does not guarantee any outcome or return.