Forex Indicators

Lot Size Calculator indicator

November 11, 2026

10169

Hi guys!

I’ve answered a lot of questions about lot sizing over time, especially how to calculate it properly for non-USD pairs and different account currencies without getting confused.
That’s why I originally built this indicator to handle all the math automatically right on your chart.

Today, I’m sharing an upgraded version with a much cleaner interface and some great new features!

What’s New in This Version?

• Movable On-Chart Panel: You aren’t stuck in one corner anymore. You can drag the panel anywhere on your chart, or set its exact starting position in pixels (InpStartXOffset and InpStartYOffset).
• Smart Auto-Calculation: It automatically figures out the right lot size based on your risk percentage, the currency pair’s pip cost, and your specific broker account currency.
• Equity or Balance Modes: You can now choose whether you want the indicator to calculate your risk based on your current Equity or your Balance (InpCalcMode).
• Shows Your Position Value: Right below the Calculated Lots, it now shows the exact amount of money you are putting on the line (or targeting) in your account currency.
• Works for Both SL & TP: Traditional traders can enter their Stop Loss in pips to manage risk per trade, or you can punch in your Take Profit pips to quickly see potential gains.
• Customization: Want it to match your dark or light chart template? You can customize all the colors—background, header, text, fields, and accents—directly in the settings.

How It Works

Just fill in two quick fields right on the panel: Risk Amount (%) and Pips Amount.
Quick note on digits: If Pips value equals zero or empty this calculator is switching to simple lot size calculation based on percent of your balance.

Let’s Check the Settings

In the Inputs tab, you can tweak everything before you even start:
• InpCalcMode: Switch between Equity Mode and Balance Mode.
• InpDefaultRisk & InpDefaultPips: Set your go-to risk percentage and default pips so they load automatically.
• Panel Colors: Customize InpBgColor, InpHeaderColor, InpTextColor, InpFieldColor, and InpAccentColor to whatever looks best on your setup.
• Starting Position: Set your preferred X and Y pixel offsets (InpStartXOffset / InpStartYOffset).

Hope this makes your daily trading and risk management a whole lot smoother. Let me know what you think of the new look!

How to install :

1. Download file
2. Unzip archive and copy the MQL4 folder from the archive to your terminal Data folder
3. Restart terminal and apply the indicator to a chart
4. Register a valid email with single time donation or log in with previously registered email address.
5. You can switch your broker account any time you need by logging in with previously registered email address