Position Size Calculator — USD Reference Estimate
Estimate a USD price-distance budget under stated assumptions. Confirm actual contract and volume limits; a calculator does not enforce orders or provider rules.
What does this reference estimate assume?
USD account, EURUSD/GBPUSD/AUDUSD/NZDUSD, 100,000 base units per lot, $10 per pip and an assumed 0.01-lot increment. Other listed instruments need a verified current USD pip value, so no position size is returned for them. No live rate feed or broker volume-limit check is performed.
How does rounding affect the result?
For a hypothetical $100 budget, 30-pip stop and $10-per-pip lot value, raw size is 1/3 lot. Rounding down to 0.33 lots estimates $99 of price-distance loss before costs. Ordinary nearest rounding can exceed a chosen budget.
What remains outside this calculation?
Costs, price gaps, execution differences, currency conversion and actual broker contract/volume constraints. A stop-distance estimate is not a maximum-loss guarantee. The chosen percentage is an input, not a personal risk recommendation or prop-firm compliance check.
Frequently asked questions
Does the calculator provide a current lot size for every instrument?
No. It returns a reference result for four USD-quoted forex pairs under the stated 100,000-unit/$10-per-pip/0.01-lot assumptions. Other choices have no result without a verified current USD pip value.
Is the displayed risk a guaranteed maximum loss?
No. The chosen budget and rounded price-distance estimate exclude costs and execution differences. Check the actual contract, order type and provider terms.
Does the calculator enforce prop-firm rules?
No. It does not enforce orders or observe every floating loss. Current provider terms and account-specific limits require separate checks.