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Forex Position Size Calculator

Decide what you are willing to lose first; this position size calculator turns that into a lot size.

Written by the TyrexCoin team. Updated 26 September 2026. How we research

Position size calculator

Position size
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What it calculates

Amount at risk = balance × risk %
Units = amount at risk ÷ (stop in pips × pip value per unit)

With $5,000 and 1% risk ($50) on a 20-pip stop in EUR/USD, the result is 25,000 units, or 0.25 lots. If the stop is hit, the loss is about $50 plus costs.

Why it matters

Crypto traders often size positions by how much they want to make. Professional risk management starts from how much you can afford to lose. Stops can slip in fast markets, so real losses can exceed the figure shown. Check margin with the margin calculator.