Forex Lot Sizes Explained

Lot size determines how much currency you're trading and your profit/loss per pip.

Standard Lot Sizes

Standard Lot

• Size: 100,000 units
• Pip value: ~$10 per pip (USD pairs)
• Typical margin: $1,000-$2,000 (50:1-100:1 leverage)

Example: 1 lot EUR/USD, 10 pip move = $100 profit/loss

Mini Lot

• Size: 10,000 units
• Pip value: ~$1 per pip
• Typical margin: $100-$200

Example: 1 mini lot, 10 pip move = $10

Micro Lot

• Size: 1,000 units
• Pip value: ~$0.10 per pip
• Typical margin: $10-$20

Example: 1 micro lot, 10 pip move = $1

Nano Lot

• Size: 100 units
• Pip value: ~$0.01 per pip
• Typical margin: $1-$2

Example: 1 nano lot, 10 pip move = $0.10

Choosing Lot Size

By Account Size

$100-$500: Nano/Micro lots only $500-$2,000: Micro lots $2,000-$10,000: Mini lots $10,000+: Standard lots

By Risk Tolerance

Formula: Lot Size = (Account × Risk%) ÷ (Stop Loss Pips × Pip Value)

Example:

• Account: $5,000
• Risk: 1% = $50
• Stop: 25 pips
• Pip value needed: $50 ÷ 25 = $2 per pip
• Lot size: 2 mini lots

Fractional Lots

Most brokers allow 0.01 lots (micro) increments.

Examples:

• 0.15 lots = 15,000 units
• 0.73 lots = 73,000 units

This allows precise position sizing.

Lot Size by Pair

Major pairs: $10 per pip per standard lot JPY pairs: $9.09 per pip per standard lot (calculate based on 0.01 move) Exotic pairs: Varies, check broker

Common Mistakes

❌ Trading standard lots with small account ❌ Not calculating position size before trade ❌ Ignoring pip value differences ❌ Maxing out lot size

✅ Always calculate position size ✅ Start small, scale up slowly ✅ Use position size calculator

Use our Position Size Calculator for quick calculations.