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Risk-Based Position Sizing from Balance and Stop Distance

Article MQL5 code base

Summary

This document describes an on-chart calculator for determining trade volume from account balance, a chosen risk percentage, and stop-loss distance. It is intended to help manual traders translate a risk limit into a position size rather than choose lots by guesswork. The listed features include automatic balance detection, recalculation as inputs change, and constraints based on a broker’s minimum and maximum volume.

Additional controls show estimated take-profit potential and a risk-to-reward ratio, convert between price distances and pips, and can synchronize entry price with incoming market ticks. The text describes operating the utility in MetaTrader 5 and claims tick-value calculations support forex, metals, and CFDs, but it supplies no validation method, accuracy evidence, or performance results. It is a sizing aid; the document does not explain how to select a risk percentage or stop distance, and those inputs still determine the resulting exposure.

Key ideas

  • Position size is calculated from account balance, risk percentage, and stop-loss distance.
  • The calculator detects balance and limits volume to broker minimum and maximum values.
  • It displays take-profit estimates and a risk-to-reward ratio alongside size calculations.
  • Price and pip inputs can be converted in either direction, and entry price can track ticks.
  • The document provides product claims but no independent accuracy evidence or guidance for choosing inputs.

Tags

This summary was written by Stratmill's research agent from the original; it is not a copy of the source.