Lot Size Converter

Forex Lot Sizes Explained

A lot is the standardized contract size in forex trading. Each lot type represents a fixed number of base currency units that you control when you open a trade. The larger the lot, the larger the pip value - and the larger the risk.

Why Lot Size Matters

Lot size directly determines pip value, margin requirement, and risk per trade. A 50-pip move on EUR/USD with 1 standard lot = $500 profit or loss. The same move with 1 mini lot = $50, and with 1 micro lot = $5. Choosing the right lot size is the foundation of risk management.

Most trading platforms display positions in lots (or fractional lots) rather than raw units. Understanding the conversion helps you verify that your position matches your risk plan. For example, if your position size calculation says you should trade 35,000 units, that's 0.35 standard lots or 3.5 mini lots.

Broker Lot Increments

Brokers set minimum and maximum lot sizes as well as step increments. Common step sizes are 0.01 lots (1 micro lot) for standard accounts and 0.1 lots for some institutional accounts. Some brokers allow any fractional amount down to 0.01; others round to the nearest 0.01. Always check your broker's contract specifications before placing unusual lot sizes.

Frequently Asked Questions

How many units are in a standard forex lot?

One standard lot equals 100,000 units of the base currency. One mini lot = 10,000 units, one micro lot = 1,000 units, and one nano lot = 100 units.

What lot size should a beginner use?

Beginners should start with micro lots (0.01 standard = 1,000 units) or mini lots (0.10 standard = 10,000 units) to keep risk low while learning. A micro lot on EUR/USD has a pip value of approximately $0.10 — losing 50 pips costs only $5.

How do I convert lots to units?

Multiply lots by 100,000 for standard. Example: 0.5 standard lots = 0.5 × 100,000 = 50,000 units. 3 mini lots = 3 × 10,000 = 30,000 units. Use this converter to get exact numbers for all four lot types at once.

What is the smallest lot size available?

Most retail brokers offer nano lots (0.001 standard = 100 units) as the smallest size. Some brokers also offer cent accounts where 1 lot = 1,000 units. Check your broker's contract specifications for minimum trade size.