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Lot Size Calculator (Forex)

Calculate the right lot size for your forex trades based on your risk tolerance.

Lot Size Calculator (Forex)
0.4
Standard Lots
50.0
Pips at Risk
$200.00
Dollar Risk

How to Calculate Forex Lot Size

Lot sizing in forex determines the volume of your trade. Trading the wrong lot size can lead to outsized losses, even with a tight stop loss. This calculator helps you trade the correct volume every time.

The Formula

Lots = (Account Size × Risk %) ÷ (Pips at Risk × Pip Value)

Step-by-Step Example

  1. Your account is $10,000
  2. You want to risk 2% ($200)
  3. EUR/USD entry at 1.1000, stop at 1.0950
  4. That is 50 pips of risk
  5. Pip value (standard lot) = $10
  6. Lots = $200 ÷ (50 × $10) = 0.40 lots

Understanding Lot Types

100,000
Standard Lot
10,000
Mini Lot
1,000
Micro Lot

Why Lot Sizing Matters in Forex

  • Forex leverage amplifies both gains and losses
  • Pip values vary by currency pair
  • Over-leveraging is the #1 reason forex traders blow accounts
  • Consistent lot sizing leads to consistent risk management

Journal your forex trades automatically

LogYourTrade tracks pip gains/losses, R-multiples, and performance across all your currency pairs.

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