The One Number That Keeps a Beginner in the Game — Cambodia
Position size is the only part of a trade fully under a beginner's control, and it is derived rather than chosen. Fix the share of the balance that a losing trade is allowed to cost, measure the distance to the stop, and let the calculator return the lot size that makes those two agree. Awkward-looking results are correct results; rounding them up is how a planned risk figure quietly doubles.
An Exness lot size calculator turns your risk into a position size: enter your account balance, how much you are willing to risk per trade and your stop-loss in pips, and it returns the volume in lots. Sizing your position to your risk is the core of trading risk management. Pro mode sizes in your account currency, checks the margin the size needs and sets the stop from the instrument's measured average daily range; switch to Simple for a quick lots-from-risk figure.
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Calculations use spreads and contract specs measured on a live Exness Standard account (2026-09-06). Figures are indicative — spreads may fluctuate and actual results will vary.
How is a lot size derived from a risk figure?
Risking 2% of a $1,000 account puts $20 at risk. With a 30-pip stop-loss on EUR/USD, where one pip per lot is worth about $10.00 at measured specs, the size is about 0.07 lots — around 7,000 units, needing about $40.65 of margin at 1:200 leverage.
Figures are indicative, from spreads and contract specs measured on a live Exness Standard account (2026-09-06). Converted to a local currency, the same amounts follow the current exchange rate, which changes through the day.
Questions a first-time trader asks
Why does a wider stop mean a smaller lot?
Does any of this change with the account currency?
How much should one trade risk?
What if the calculated lot size is very small?
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Why this is the page that matters most
A beginner will be wrong often, and that is expected. What decides whether the account is still there afterwards is not the hit rate but whether each individual loss was the size it was supposed to be.
Fixing the risk per trade also makes the demo log readable. If every trade risks the same amount, the log measures the plan; if the size drifts, it measures confidence, which is not what anybody meant to test.
Where this sits in a four-week practice run
This is the one calculation that runs on every single practice trade, including the ones that turn out badly. Consistency is the point: a log where every trade risked the same amount is a log that measures the plan.
It is also the calculation most often skipped when a setup looks obvious. Noting the risk figure in the journal before the order makes skipping it visible afterwards, which is the only reliable way to stop doing it.