Open position risk calculator

Add the cash losses you have estimated at each position's stop, in one account currency. See each contribution and how a proposed position changes the combined scenario.

The math — planned total = sum of cash losses at stops + additional costs

Enter cash amounts you have already checked, all in the same account currency. Use at most two decimal places. Do not enter lot sizes or mix currencies.

Account reference amount

A positive balance or equity amount used only to express the total as a percentage. This tool does not calculate remaining equity.

Account currency code

Three letters, such as USD, EUR or THB. Changing this label does not convert amounts.

Position 1

Position 1 label (optional)

Position 1 cash loss at stop

Position 1 additional costs

Up to 12 positions. Use the same price reference when estimating each loss. Additional costs must exclude anything already counted in the loss. Gains on other positions are not offsets here.

Enter a positive reference amount and complete every cash field with a nonnegative number up to 1,000,000,000, using at most two decimals and no commas. Use a three-letter currency code.

This is a conditional stop scenario. It does not estimate the probability of stops executing, cap actual losses, verify broker fills or calculate margin. Gaps, slippage, financing and missing costs can change losses. Correlation does not reduce the sum if every entered loss occurs.

What happens if all three stops are reached?

Three hypothetical positions with a cash loss of USD 100 each sum to USD 300 before any additional costs. Against a USD 10,000 reference amount, that is 3%. Removing one row reduces the scenario to USD 200 and 2%. Adding USD 5 of previously omitted costs to each of three rows brings it to USD 315 and 3.15%.

Start with amounts you can verify

Estimate each position's cash loss from a consistent price reference to its stop, in your account currency. If you measure from entry, all rows must describe that same kind of entry-to-stop scenario. An estimate from the current mark is a different, incremental-loss scenario. Do not subtract an entry-based loss from current equity as though floating losses have not already happened.

Use your broker's contract specifications and profit calculation to check the cash amounts. The gold calculator and forex position-size calculator explain their own assumptions. This worksheet adds supplied amounts; it has no price feed or currency conversion.

A stop scenario and correlation answer different questions

The cash sum remains USD 300 if all three USD 100 losses occur. A volatility model with estimated correlations can answer a different statistical question, under assumptions about returns. It cannot discount this all-stops scenario. Read One Trade, Five Times for the distinction.

Keep a plan and review what changed

Download the local JSON to retain the entered amounts, contributions, method, version and time of capture. Compare the sum before and after adding a prospective position. The file is a record of your assumptions; it is not a verified broker report, remaining-loss allowance or confirmation that a prop-firm rule is met.

Calculation reference: MetaQuotes OrderCalcProfit describes estimates in account currency for specified trade conditions. Actual execution can differ.

Method: Sum entered cash losses and additional costs. The account reference amount is only a percentage denominator; this is not a maximum loss, probability, margin or broker execution calculation.

Runs entirely in your browser — nothing you type is uploaded or stored.

Common questions

How do I calculate risk across several open positions?

Estimate each position's cash loss at its stop in your account currency, using a consistent price reference, then add costs not already included. This worksheet sums those amounts and expresses the total against your account reference amount.

Does correlation reduce this total?

No. If three entered losses of 100 each occur, their sum is 300 before omitted costs. A correlation model describes a different statistical question; it does not discount this all-stops cash scenario.

Is this the maximum I can lose?

No. Stops may fill at different prices, costs can be missing and positions may interact through broker netting or liquidation. This calculation only adds your entered scenario amounts and does not verify actual execution or account limits.

Can I enter lots or amounts in different currencies?

No. Enter verified cash amounts in one account currency. Changing the currency label does not convert values. Use the linked sizing guides and your broker's symbol specifications to estimate each cash loss first.

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