Lot Size Converter
Convert standard forex lots and base-currency units using 100,000 units per lot. This is a quantity conversion, not a risk or margin calculation.
Total Base-Currency Units
1 standard lots = 100,000 base-currency units.
Displayed to at most 12 significant digits; not rounded to a broker’s trade increment.
Same Quantity by Lot Convention
- Standard Lot (100,000 units)
- 1
- Mini Lot (10,000 units)
- 10
- Micro Lot (1,000 units)
- 100
- Nano Lot (100 units)
- 1,000
What is a Lot in Trading?
A lot is the standardized number of units of a financial instrument that is traded. This calculator uses forex conventions only. Other CFD and futures contracts can represent different quantities; check the broker’s instrument specification.
Standard Lot Sizes Explained
The calculator uses these forex quantity conventions:
- Standard Lot: 100,000 units of the base currency. Multiple standard lots can represent larger positions.
- Mini Lot: 10,000 units (0.1 standard lots). This is a unit relationship, not an account-size recommendation.
- Micro Lot: 1,000 units (0.01 standard lots). Availability depends on the platform.
- Nano Lot: 100 units (0.001 standard lots). Not a universal minimum: some platforms support single units.
Why Does Lot Size Matter?
Understanding lot sizes is crucial for several reasons:
- Risk Management: Size is one input to risk; stop distance, costs, conversion and execution also matter.
- Pip Value Calculation: The value of each pip movement depends directly on your position size measured in lots.
- Margin Requirements: Margin also depends on contract value, conversion and the broker’s applicable rates or tiers; it is not calculated here.
- Position Sizing: Converting between lots and units expresses the same quantity. It does not select an appropriate position for you.
How to Calculate Lots from Units
The conversion is straightforward:
Lots = Units / 100,000For example, if you want to trade 50,000 units of EUR/USD:
50,000 / 100,000 = 0.5 lots (or 5 mini lots)Common Lot Size Conversions
| Lot Type | Units | Fraction of Standard |
|---|---|---|
| Standard Lot | 100,000 | 1.0 lots |
| Mini Lot | 10,000 | 0.1 lots |
| Micro Lot | 1,000 | 0.01 lots |
| Nano Lot | 100 | 0.001 lots |
Sources: OANDA units and standard/mini/micro conventions and IG forex contract specifications. Product and platform requirements can differ.
Frequently Asked Questions
How many units are in one standard forex lot?
This converter uses 100,000 base-currency units per standard forex lot, 10,000 per mini lot and 1,000 per micro lot. Nano here means 100 units; it is a convention, not a universal broker minimum.
Does this apply to every CFD or futures contract?
No. Metals, indices, shares and futures can have different contract sizes. Consult the instrument specification. This tool only converts the fixed forex unit convention shown here.
Does a smaller lot guarantee a small loss?
No. Monetary risk also depends on the price move, pip size, account-currency conversion, costs and execution. This converter does not calculate risk, margin or suitability.
Can I trade the converted amount?
The mathematical amount may not meet your broker’s permitted size increment, minimum or maximum. Some platforms accept units while others require lots. The converter does not submit orders or round to broker limits.
Review Position Units in Pine Script
Pineify can help draft Pine Script strategies. Verify the chart symbol’s quantity convention and backtest settings; generated code does not itself submit broker orders.