FXForex basics

Standard lot

Also calledfull lot

A standard lot is a commonly used retail-forex position size equal to 100,000 units of the base currency. Thus, one standard lot of EUR/USD commonly represents €100,000, while one standard lot of USD/JPY represents $100,000; the applicable contract specification should still be confirmed before trading.

What Standard lot means

“Standard” refers to the conventional full-lot size used in retail forex. It is a sizing convention, not a recommended order size and not the amount a customer must pay upfront. If a platform permits fractional orders, 0.10 standard lot is commonly 10,000 base-currency units and 0.01 standard lot is commonly 1,000 units.

Knowing the standard-lot definition makes it possible to translate a platform order into its underlying currency exposure. It also supports more accurate checks of pip value, notional value, and margin. A full lot can produce meaningful price gains or losses from small exchange-rate changes, independent of the initial margin posted.

Assume EUR/USD is 1.0800 and the account is denominated in U.S. dollars. One standard lot equals €100,000, with a simplified notional value of $108,000. A one-pip move is 0.0001 × €100,000 = $10. This calculation excludes spread, commission, financing, conversion, and any execution differences.

Common questions

How many units are in 0.01 standard lot?+

If the platform uses the common retail convention, 0.01 standard lot equals 1,000 units of the base currency and is often called a micro lot. The instrument specification should be checked because minimum order sizes and increments can vary.

Does a standard lot require paying for 100,000 currency units in cash?+

Not necessarily. In leveraged retail forex, a position’s notional amount and the margin required to open it are different figures. Margin reduces the upfront deposit requirement but does not remove exposure to losses on the full position size.

Go to the original material.

01National Futures Association, Rules: retail forex lot sizes02U.S. Securities and Exchange Commission, Forex Trading for Individual Investors