Position size calculator
CryptoKeyhole’s position size calculator turns the share of your account you are willing to lose and the distance to your stop into the size of the trade, with the margin it needs and its reward against its risk.
- Value
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- Margin
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- Loss at the stop
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- Gain at the target
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- Reward to risk
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How it works
The risk is the account times the share risked. The position size is that risk divided by the distance between entry and stop, so a wider stop means a smaller position for the same risk.
A stop below the entry makes the trade a long, above it a short. The margin is the position’s value divided by the leverage; the target, if you give one, sets the reward and the ratio.
Questions
How is the position size worked out?
The amount you are prepared to lose (the account times the risk per trade) divided by the distance from the entry to the stop. A stop 5% away with 1% of a 10,000 account at risk gives a 2,000 position.
What does leverage change?
Only the margin you put up: the position, and what you lose at the stop, stay the same. Higher leverage leaves less margin and brings the liquidation price closer to the entry, so check it sits beyond your stop.
What is the reward-to-risk ratio?
The distance to the target divided by the distance to the stop. At 2 to 1, one winning trade pays for two losing ones.
Do fees and slippage matter?
Yes: a stop that fills worse than its price loses more than planned. Leave room for both, especially on small coins and fast markets.
Prices filled from CryptoKeyhole’s daily closes; every figure is worked out in your browser. Not advice.