Work out exactly how many units to buy so a stop-loss hit costs you a fixed, pre-decided amount — not whatever the market feels like taking.
Currency-agnostic: put your balance in whatever unit your account uses and the results come back in the same one. Nothing you type leaves your browser.
Position sizing is three lines of arithmetic that most blown accounts skipped:
Worked example, using the defaults above: a 10,000 account risking 1% is risking 100. Entry at 68,400 with a stop at 67,200 means each unit can lose 1,200. So 100 ÷ 1,200 = 0.0833 units. If the stop is hit, you lose 100 — regardless of how big the position looks.
The common failure is backwards: pick a position size that feels right, then place the stop wherever it fits. That makes your loss a function of your mood.
The correct order is the opposite. The stop belongs where the idea is proven wrong — a structural level, not a round number and not a comfortable distance. Then the size is derived from it. A wider stop doesn't mean more risk; it means a smaller position. This calculator only works if you decide the stop first.
If the position value exceeds your balance, the calculator shows the leverage that implies. That's a consequence of your inputs, not a recommendation. A tight stop can produce a mathematically "safe" 1% risk that still needs 8× leverage to express — and leverage brings liquidation risk that sits outside this arithmetic entirely.
Common practice is 0.5%–2% of account equity per trade, with most conservative guidance clustering around 1%. The honest answer is that it depends on your edge, your drawdown tolerance and how correlated your positions are — but if you don't have a number decided in advance, you're sizing by feel.
Yes — the arithmetic is unit-agnostic. "Units" means shares, coins, or contracts depending on your market. For forex, convert the result to lots using your broker's contract size.
A level. A stop placed at "2% below entry" is arbitrary; a stop placed below the structure that invalidates your idea is information. Size adapts to the stop, not the other way round.
No. The calculation runs entirely in your browser — nothing is sent anywhere and nothing is saved.
These numbers tell you how much to risk. They can't tell you whether the setup is worth risking anything on — that's a different question, and it's the one we built Tickrify for: paste a chart, get entry, stop, targets and risk, or an honest "no trade". Three analyses free, no card.
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