Position Size Calculator
Most calculators size off your balance. On a funded account the drawdown buffer is what ends you — so size against that.
$ change per contract for a 1.0 price move.
Distance to your trailing/static floor — not account balance.
Our sizing runs ~15–25% of the buffer per trade (SL ≈ 0.6–1.25% of account ×1.25).
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contracts
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Risk per trade ($)
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% of buffer used
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Risk per contract ($)
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Futures point values shown are standard CME contract specs; for forex/CFD enter your broker's value per point. This rounds down to whole contracts. A drawdown buffer is small — risking a large % of it leaves no room for a losing run. Educational only, not financial advice; confirm contract specs and prop-firm rules directly.
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