Direct answer: what a micro lot costs
In forex, a micro lot is commonly defined as 0.01 of a standard lot. That means the position size is small, but the money cost depends on what you mean by “cost”:
- Position value (exposure in money terms): how much currency exposure the trade represents at the current price.
- Margin (required deposit to open/hold the position): how much collateral your broker asks for, based on leverage and risk rules.
Because different brokers use different leverage and margin rules, you should treat any “how much it costs” figure as assumption-based unless you check your account’s contract specifications.
Mechanics: from lot size to position value and pip value
A standard lot is typically 100,000 units of the base currency. With that convention, a micro lot is 1,000 units.
To translate that into money terms, you generally multiply by the market price:
- If a pair is quoted as BASE/QUOTE (for example, EUR/USD), the exposure equals 1,000 × price in the quote currency.
For traders and reporting, pip value is often a more stable reference than “total cost,” because it connects lot size to price movement:
- A pip is the standardized step traders use for price changes.
- The pip value depends on the pair and the account’s currency, and it can be estimated from the lot size and pip definition.
If your broker or platform shows pip value directly, that is usually the simplest verification method.
Example checks (to verify meaning and units)
Use the same micro-lot definition (0.01 of a standard lot, i.e., 1,000 base units) and compare two “cost” interpretations:
- Position value check: “Micro lot cost” as exposure at price means you compute 1,000 × current price in the quote currency.
- Pip value check: “Cost” as the monetary impact of a 1-pip move means you look for pip value per micro lot or compute it using your pair’s pip rule and the quote/account currency mapping.
For margin, you would instead look for your broker’s margin requirement formula (commonly tied to leverage and contract terms). Without those specific terms, margin numbers cannot be stated reliably.
Limitations and what you can independently verify
- No single number fits all accounts: “micro lot cost” varies depending on whether you mean position value or margin and what the contract specifications and account currency are.
- Price sensitivity: position value changes with the pair’s current price; it is not constant.
- Broker variability: margin rules, leverage limits, and conversion to account currency differ.
Independent verification options are straightforward: confirm the platform’s contract specification for micro lots (units), then check either pip value or the platform’s margin requirement display for a micro-lot position.