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Position Sizing Calculators

Calculate optimal position sizes based on account risk and trade parameters.

Position sizing is the single most important variable in trading. It determines how much of your account you put at risk on each trade — and done correctly, it's what separates traders who survive drawdowns from those who blow up. These calculators let you define your risk in dollar terms (typically 1–2% of account per trade) and instantly get the exact position size, whether you're trading Bitcoin spot, Ethereum perpetuals, or Solana futures. All calculators support both long and short positions and work with any stop-loss distance.