A risk calculator can show transparent arithmetic, but it cannot safely guess a live price, a broker’s lot size, a futures multiplier, or the currency conversion needed for your account. A responsible general-purpose tool asks the visitor to enter those values.
The core calculation
First choose a money-at-risk budget. Then find the distance from entry to stop. Multiply the distance by the share, lot, or contract multiplier and by any account-currency conversion factor. Divide the budget by the resulting risk per instrument, then round down.
Why the market type changes the inputs
For a share already quoted in the account currency, one share normally has a multiplier of one. A forex lot represents a chosen number of currency units and may need conversion into the account currency. A futures contract represents a contract-specific amount; micro and standard versions can use different multipliers.
Do not skip the specification check
For futures, a contract is a defined unit of trading and its size is part of the specification. Verify current contract details with the relevant exchange or broker. Do not assume an index name, ticker-like label, or an old example tells you the multiplier for a different contract.
Stops can fail to limit a loss exactly
The formula assumes an exit at the stop price. Actual outcomes may differ because of gaps, slippage, spread, fees, leverage, liquidity, and execution conditions. Use the manual ticker, forex and futures risk calculator as a transparent worksheet—not as trade advice or a guarantee.
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