Position Size Calculator
Size the trade from your risk budget instead of your gut — then let it check the two things that actually blow accounts up: leverage that liquidates you before your stop, and a stop parked inside a liquidation cluster.
How this is calculated
Professional sizing runs backwards from the loss you accept. You decide the account risk (1% is a common ceiling), the market decides the distance to your stop, and those two numbers fix the position size — leverage only decides how much margin you must post for it.
position size = (account × risk%) ÷ (distance from entry to stop, in %)
That is why leverage does not change your risk here — it changes your margin. What leverage does change is where liquidation sits: too much of it and the exchange closes the position before your stop ever triggers, which turns a planned 1% loss into a total loss of the margin. This calculator flags that case and tells you the maximum leverage that keeps liquidation beyond your stop.
Position sizing — questions answered
How much should I risk per trade?
Most professional risk frameworks cap a single trade at 0.5–2% of the account. The point is survivability: at 1% risk, ten losses in a row cost about 10% of the account; at 10% risk the same streak is close to a wipeout. The calculator defaults to 1%.
Does higher leverage mean more risk?
Not directly. With a fixed stop, your loss is set by position size and stop distance, not by leverage — leverage only decides how much margin you lock up. It becomes dangerous when it pushes your liquidation price closer to entry than your stop, because then the exchange decides your exit instead of you.
What is a liquidation-before-stop situation?
When your liquidation price sits between your entry and your stop-loss. Price never reaches your stop; the position is force-closed first and the full margin is gone. It is the single most common way leveraged accounts die, and it is entirely avoidable by lowering leverage.
Why does it matter whether my stop is inside a liquidation cluster?
Clusters are price levels where a lot of leveraged positions get force-closed at once. Those forced orders push price further in the same direction, so levels with a big cluster tend to get swept — a stop sitting exactly there is more likely to be taken out before price reverses.
Hands these numbers to My positions, where WhaleRoom keeps an eye on them: how close liquidation gets, whether a liquidation cluster moves into the way, what funding costs you, and when the proven whales switch to the other side. Nothing is saved until you press Save there.
Know before the level gets hit
WhaleRoom watches the liquidation map and whale positioning around the clock. Set a key-level alert and get a Telegram ping before price reaches the level you care about.