Gross Notional Capacity Calculator
Value the absolute base-leg notional of one to five entered forex positions, compare the total with an account-currency cap you define, and translate any remaining amount into candidate units or lots.
Enter the exposure scenario
The cap is an amount you supply. It is not a broker, regulatory or recommended maximum.
Candidate instrument conversion
Remaining account-currency notional is converted into this instrument's base units and lot scale.
A valuation input, not a live or executable quote.
Required when the account is neither the candidate base nor quote currency.
Capacity result
Gross Notional Capacity 1.0.0.
| Instrument | Base units | Base-to-account rate | Gross notional |
|---|
What gross notional means here
Each position's absolute base units are valued in the selected account currency. The values are added without offsetting buys against sells. Signed capacity is the entered cap minus that gross total.
Used gross notional = Sum(Position gross notional)
Signed capacity = User-defined cap - Used gross notional
Additional candidate units = Max(Signed capacity, 0) / Candidate base-to-account rate
Assumptions and limits
- The cap is user-defined. It is not a broker limit, regulatory limit, safe maximum or recommendation.
- Reference prices and third-currency conversion rates are manually entered and are not live quotes.
- Opposing positions are not netted because this tool measures gross absolute base-leg notional.
- Margin, leverage, free margin, equity, stop-out, liquidation, maintenance margin and broker volume limits are excluded.
- Candidate units and lots express arithmetic capacity under the entered cap, not order size, affordability or permission to trade.
- Contract sizes are stored instrument data; verify the exact broker symbol specification before use.
Frequently asked questions
- It is the difference between a cap you enter and the summed absolute base-leg notional of the entered positions, all expressed in one account currency.
- No. The cap is entirely user-defined and is not a broker, regulatory, margin, liquidation or safety threshold.
- Gross notional measures absolute exposure. Netting a buy against a sell would change the metric into net exposure and hide the gross position size.
- Absolute base units are multiplied by a base-to-account rate derived from the entered reference price and, when needed, a third-currency conversion rate.
- It means the entered gross notional exceeds the user-defined cap. The separate excess metric shows the positive overage amount.
- No. It is an arithmetic translation of remaining notional only and does not check margin, leverage, broker limits, liquidity or suitability.
- No. All prices and any cross-currency conversion rates are entered manually for the scenario.
- No. Notional is the value basis of exposure. Margin is a separate broker calculation that can depend on leverage, symbol, account and portfolio rules.
Sources and methodology
- MetaTrader 5: Forex margin calculation — contract-size, volume, price and conversion context.
- MetaTrader 5: Trading report — account and position reporting context.
- CFTC: Retail Forex Rule Q&A — retail leveraged forex risk context.
The route uses Gross Notional Capacity 1.0.0. It deliberately keeps notional and margin as different concepts.
Continue the exposure workflow
Compare broker contract and margin terms
Verify contract size, leverage, margin, volume and stop-out rules for the broker entity and account available in your jurisdiction.
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