Lot Size Converter
Easily convert between standard, mini, and micro lots for precise position sizing.
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Quick answer
1 standard lot = 100,000 units, 1 mini lot = 10,000 units, and 1 micro lot = 1,000 units of the base currency. So 0.10 lots = 1 mini lot = 10,000 units, and 0.01 lots = 1 micro lot = 1,000 units.
What is the Lot Size Converter?
What Is a Lot Size Converter?
The Lot Size Converter instantly translates between different lot size formats used in forex trading: standard lots, mini lots, micro lots, nano lots, and raw units. Since different brokers, platforms, and regions use varying terminology, this tool ensures you always know exactly how much currency you're trading regardless of the format displayed.
Understanding lot sizes is fundamental to risk management. A "small" position of 0.1 lots might seem insignificant, but it actually represents $10,000 worth of currency (a mini lot). Misinterpreting lot sizes is one of the most common causes of unexpected losses among new traders.
Lot Size Reference Chart
- 1 Standard Lot: 100,000 units of base currency — Pip value ~$10 (EUR/USD)
- 1 Mini Lot (0.1): 10,000 units of base currency — Pip value ~$1
- 1 Micro Lot (0.01): 1,000 units of base currency — Pip value ~$0.10
- 1 Nano Lot (0.001): 100 units of base currency — Pip value ~$0.01
Why Lot Conversion Matters
- Broker Differences: Some platforms display "units," others display "lots," some use decimals (0.01), others use thousands (1,000)
- Risk Calculation: Accurate position sizing requires knowing exact unit exposure
- Platform Migration: Moving between MT4, MT5, cTrader, and proprietary platforms often requires mental conversion
- Cent Accounts: Some brokers offer "cent accounts" where 1 lot = 1,000 units instead of 100,000—causing massive confusion
How to Use This Calculator
How This Calculator Works
Step-by-Step Guide
- Select Input Format: Choose whether you're entering Standard Lots, Mini Lots, Micro Lots, or Units
- Enter Amount: Input your position size in the selected format
- View All Conversions: Instantly see the equivalent in all other formats
- Copy Values: Use the converted values for your trading platform or risk calculator
Real-World Example
Conversion Examples
Example 1: Converting Standard Lots to Units
- Input: 1.5 Standard Lots
Conversion:
- Standard Lots: 1.5
- Mini Lots: 15
- Micro Lots: 150
- Units: 150,000
You are controlling 150,000 units of the base currency, worth approximately $150,000 for USD pairs.
Example 2: Platform Shows Units, Need Lots
Your broker displays position size in "units" and shows you have 25,000 units open.
- Input: 25,000 Units
Conversion:
- Standard Lots: 0.25
- Mini Lots: 2.5
- Micro Lots: 25
This is equivalent to a quarter of a standard lot, or 2.5 mini lots.
Example 3: Mixed Lot Sizes
You want to risk exactly $75 on a trade with a 30-pip stop loss. After calculating, you need 0.25 standard lots.
- Your broker only allows mini and micro lots (not partial standard lots)
- Solution: 0.25 Standard = 2 Mini + 5 Micro lots (0.20 + 0.05)
The converter helps you split positions when your broker has lot size restrictions.
When to Use
When to Use This Calculator
- Switching Brokers: When moving between brokers that display lot sizes differently
- Using Multiple Platforms: MT4 might show 0.01, while your broker's web platform shows 1,000 units
- Risk Calculator Output: Position size calculators often output in lots—convert to units if your platform requires it
- Cent Account Trading: Cent accounts use different lot sizes—always verify with the converter
- Calculating Pip Value: Once you know units, you can accurately calculate pip value for any pair
- Partial Position Sizing: Break down odd lot sizes into combinations your broker supports
Common Mistakes
Common Mistakes to Avoid
- Confusing Lots Across Brokers: Some brokers define 1 lot as 100,000 units (standard), while "cent account" brokers define 1 lot as 1,000 units. Always verify your broker's contract specifications.
- Decimal Confusion: Entering "0.1" when you meant "0.01" results in a position 10x larger than intended. A small decimal error can blow your risk management.
- Ignoring CFD Lot Sizes: Indices, commodities, and crypto CFDs have different contract sizes than forex. Gold might be 100 oz per lot, not 100,000 units.
- Not Checking Platform Settings: Some platforms allow changing the "default lot size" display. Ensure you know whether you're viewing standard lots or something else.
- Mental Math Errors: Trying to calculate "0.37 lots in units" mentally leads to mistakes. Always use a converter for precision.
Use Together With
Position Size Calculator
Calculate the perfect position size for your trades based on your account size, risk tolerance, and stop loss distance.
Pip Value Calculator
Instantly calculate the monetary value of each pip movement for any currency pair and position size.
Position Value Calculator
Calculate the total value of your forex position in your account currency.
Margin Calculator
Determine the exact margin required for your trades based on position size, currency pair, and leverage ratio.
Frequently Asked Questions
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Tools that work best with the Lot Size Converter
Position Size
Free forex position size calculator. Enter your account balance, risk percentage, and stop loss to get the exact lot size. Works with all currency pairs, MT4, and MT5.
Pip Value
Free pip value calculator for forex. Find the exact dollar value of each pip for any currency pair, lot size, and account currency. Supports majors, crosses, and exotics.
Position Value
Free position value calculator for forex. Calculate the total notional value and exposure of your position in your account currency. Supports all pairs and lot sizes.
Margin
Free forex margin calculator. Calculate the exact margin required for any position size and leverage ratio. Supports all currency pairs and leverage levels from 1:30 to 1:1000.