How to Use MT5 Position Sizer EA — Complete Guide

The BrokersDB MT5 Position Sizer EA is a free Expert Advisor that automates position sizing calculations directly in your MetaTrader 5 platform. Instead of manually calculating lot sizes before every trade, this EA does it for you instantly based on your account balance, risk percentage, and stop loss.

What is the MT5 Position Sizer EA?

An Expert Advisor (EA) is an automated trading script that runs on MetaTrader 5. The MT5 Position Sizer EA is not a trading bot—it does not open or close trades automatically. Instead, it calculates the correct lot size for your trade based on your risk parameters and displays it on your chart.

Key Features

• **Instant position sizing** — Calculates lot size in milliseconds based on your risk parameters
• **Risk-based calculation** — Set your risk percentage (e.g., 1% of account) and stop loss in pips
• **Multi-currency support** — Works with all forex pairs, indices, and commodities
• **Account balance tracking** — Automatically uses your current account balance for calculations
• **Visual display** — Shows calculated lot size directly on your chart
• **No manual calculations** — Eliminates human error in position sizing

How to Download the EA

• **Step 1:** Go to MT5 Position Sizer EA download page
• **Step 2:** Download the EA file (.ex5)
• **Step 3:** Save the file to a location you can easily access

How to Install the EA in MetaTrader 5

• **Step 1:** Open MetaTrader 5
• **Step 2:** Click on "File" in the top menu, then select "Open Data Folder"
• **Step 3:** Navigate to the "MQL5" folder, then "Experts" folder
• **Step 4:** Copy the downloaded .ex5 file to the Experts folder
• **Step 5:** Close and restart MetaTrader 5
• **Step 6:** In the Navigator panel (left side), find "Experts" and look for "BrokersDB_Position_Sizer"
• **Step 7:** Drag and drop the EA onto your chart

How to Configure the EA

After dragging the EA onto your chart, you will see the inputs window. Here are the key parameters:

• **Risk Percentage:** The percentage of your account balance to risk per trade (e.g., 1% for conservative risk, 2% for moderate risk)
• **Stop Loss Pips:** The distance in pips from entry to your stop loss
• **Account Currency:** Your account base currency (USD, EUR, GBP, etc.)
• **Comment:** Optional text to identify trades opened by this EA

How to Use the EA for Trading

• **Step 1:** Open the chart for the currency pair you want to trade
• **Step 2:** Ensure the EA is running (you should see a smiley face icon in the top right corner of the chart)
• **Step 3:** Set your stop loss level on the chart
• **Step 4:** The EA will calculate and display the recommended lot size
• **Step 5:** Use the displayed lot size when opening your trade manually

Why Use the MT5 Position Sizer EA?

Proper position sizing is the most critical aspect of risk management. Most traders lose money because they risk too much per trade. This EA ensures you always use the correct lot size based on your risk parameters.

• **Eliminates calculation errors** — No more manual math mistakes
• **Saves time** — Instant calculations instead of manual work
• **Consistent risk management** — Every trade uses the same risk percentage
• **Psychological benefit** — Reduces stress by automating calculations
• **Professional approach** — Institutional traders use similar tools

Common Questions

• **Q: Does this EA open trades automatically?** A: No, it only calculates position sizes. You still decide when and where to enter trades.
• **Q: Can I use this on a demo account?** A: Yes, it works on both demo and live accounts.
• **Q: What risk percentage should I use?** A: Professional traders typically risk 1% per trade. Beginners should start with 0.5% or less.
• **Q: Does it work with all brokers?** A: Yes, it works with any MT5 broker.
• **Q: Is it free?** A: Yes, the BrokersDB MT5 Position Sizer EA is completely free.

Download the MT5 Position Sizer EA

Ready to automate your position sizing? Download the free MT5 Position Sizer EA and start trading with proper risk management today.