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FREE FOREX LOT TOOL

Standard Lot Calculator

Convert standard lots into units, notional exposure, estimated pip value, margin requirement, and stop-based price risk.

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CALCULATOR INPUTS

Enter your planning values

CALCULATED OUTPUT

Your planning estimate

Enter or adjust the values, then select Calculate results.

STEP-BY-STEP

How to use this tool

  1. Enter the standard-lot quantity you are evaluating.
  2. Confirm the exact units per standard lot in the broker’s symbol specification.
  3. Enter the current pair price and the account-currency pip value for one standard lot.
  4. Add the planned stop distance in pips.
  5. Enter the leverage ratio applied to that symbol and account.
  6. Review units, notional exposure, pip value, stop risk, and margin together.
  7. Verify every value in the broker or simulation-platform order preview before placing an order.
WORKED EXAMPLE

See the calculation in context

At 1.00 standard lot, a 100,000-unit contract, EUR/USD at 1.1000, and 50:1 leverage, the notional exposure is $110,000 and estimated margin is $2,200. At $10 per pip, a 25-pip stop estimates $250 of price risk before costs.

Calculation method

Position units = standard lots × units per standard lot. Notional exposure = units × current price. Pip exposure = standard lots × pip value per standard lot. Estimated margin = notional exposure ÷ leverage.

AVOID THESE ERRORS

Common mistakes

  1. Assuming one standard lot is always 100,000 units
  2. Assuming pip value is always $10
  3. Confusing notional exposure with the amount at risk
  4. Using account leverage when the symbol has a lower leverage cap
  5. Ignoring conversion, spread, commission, slippage, and swaps
  6. Using margin as a substitute for a stop-based risk plan
FREQUENTLY ASKED

Questions and answers

What is a standard lot?

In many forex products it represents 100,000 base-currency units, but the broker’s contract specification controls.

Is notional exposure the same as risk?

No. Stop distance, pip value, execution, and costs determine planned price risk; notional exposure describes the position’s market value.

Why can required margin differ?

Brokers can apply symbol-specific leverage, tiers, currency conversion, and additional margin rules.

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USEFUL NEXT TOOLS

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Educational-use notice.

Outputs are planning estimates, not investment advice or guarantees. Verify instrument specifications, fees, prices and binding prop-firm rules with the relevant official source before relying on any result.