Lot Size Calculator – Size Your Forex Trades with Precision

Use this lot size calculator to determine the optimal lot size for your Forex and CFD trades. Enter your account balance, risk percentage, stop-loss distance, and pip value — the tool shows your position in standard lots, mini lots, and micro lots. This Forex lot size calculator helps you manage risk and trade with discipline.

Lot Size Calculator
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Position Size (Lots) —
Risk Amount —
Pip Value (used) —
Total Exposure —
Mini Lots —
Micro Lots —
⚠️ Illustrative only. Not financial advice. Please delete history timely, it may impact your browser performance.

History — Lot Size Calculator

# Time Balance Risk % Stop (pips) Pip Value Lot Size Risk Amount Action

Why Use This Lot Size Calculator

Proper lot sizing is essential for risk management in Forex trading. This lot size calculator helps you:

  • 💰 Calculate Your Lot Size — know exactly how many lots to trade.
  • 📊 See Mini & Micro Lot Equivalents — understand your position in different lot sizes.
  • 📉 Manage Your Risk — see exactly how much you’re risking.
  • 🌍 Works for Any Currency Pair — just enter the correct pip value.
  • 📈 Visualize Your Risk — see the breakdown of your trade.
  • 📜 Track Your History — save, review, and export past calculations.
  • 🔒 100% Private — all calculations run locally.

Lot Size Formula Used by This Tool

Risk Amount = Account Balance × (Risk% / 100)

Lot Size (standard) = Risk Amount ÷ (Stop-Loss Pips × Pip Value)

Mini Lots = Lot Size × 10

Micro Lots = Lot Size × 100

How to Use This Lot Size Calculator

  1. Select your account currency from the picker in the site header.
  2. Enter your account balance.
  3. Set your risk per trade percentage.
  4. Enter your stop-loss distance in pips.
  5. Enter the pip value per standard lot (e.g., $10 for most USD pairs).
  6. Select your account currency from the dropdown.
  7. View your results instantly — see your lot size, mini lots, micro lots, and risk amount.

Frequently Asked Questions

What is a lot size in Forex?

A lot size is the number of currency units you trade. Standard lot = 100,000 units, Mini lot = 10,000 units, Micro lot = 1,000 units.

How is lot size calculated?

Lot Size = (Account Balance × Risk%) ÷ (Stop-Loss Pips × Pip Value). This gives you the position size in standard lots.

What is a pip value?

A pip value is the monetary value of one pip movement. For a standard lot in most USD pairs, 1 pip is worth $10.

Can I use this calculator for any currency pair?

Yes — just enter the correct pip value for your pair. For JPY pairs, the pip value is typically different (e.g., ¥1,000 for a standard lot).

Is my data stored anywhere?

No. All calculations run locally in your browser. History and presets are saved in your browser’s localStorage — nothing is sent to a server.