Before you open a trade, ask how much it could lose if price reaches your planned exit, not how large a position the account can support. Position risk, here, means the loss you could face on one trade under a pre-set stop. That estimate is not guaranteed, and this is not a recommendation to buy or sell.

Diagram of three steps for estimating position size: choose a planned loss, measure the stop distance, then calculate lots. Figures are hypothetical, not live prices.

On Exness, order size is measured in lots, and contract size varies by instrument. Official help states that one standard lot in most forex pairs equals 100,000 units of the base currency. Pip value can be estimated as lots × contract size × pip size. For EURUSD priced in US dollars with a pip size of 0.0001, one standard lot is typically worth about 10 US dollars per pip. Confirm those details on the instrument page and platform that apply to you.

Three steps to estimate lot size

  1. Write down the amount you are prepared to lose on this trade, rather than starting from a habitual lot size.
  2. Measure the stop-loss distance in pips or as a price gap. The distance should come from your exit plan, not from a desire to justify a larger position.
  3. Divide the amount you can afford to lose by the loss per standard lot over that stop distance. The result is an estimated position size.

A hypothetical example

These figures are for illustration only. They are not live quotes and do not represent any real account. Suppose the account has 10,000 US dollars and you plan to risk at most 100 US dollars. Using common EURUSD parameters, one standard lot is worth 10 US dollars per pip, and the stop is assumed to be 50 pips. Estimated lots = 100 divided by (50 pips multiplied by 10 US dollars per pip) = 0.20 lots. A wider stop would require a smaller position for the same 100 US dollar risk.

Treat the result as an estimate. A wider spread, slippage, a gap, or a missed stop can make the actual loss larger. Margin is reserved capital, not a loss cap, and leverage does not by itself limit losses. Conditions can vary by account type, instrument, equity, and entity.

You can cross-check your inputs with this site’s position size calculator (https://pipandlot.com/en/tools/position-size) and pip value calculator (https://pipandlot.com/en/tools/pip-value). The tools use your numbers, do not use live prices, and do not tell you whether to trade. The official Exness calculator can also estimate pip value. If Exness Trade is available for your account, its Risk-based mode can show an estimated lot size; the app is not available everywhere.

FAQ

Will the actual loss equal the planned amount?

Not necessarily. The calculation is an estimate made before you open the trade. The fill, the spread, slippage, and stop execution can all change the result.

Why not use the same lot size on every trade?

A different stop distance changes the potential loss for the same lot size. Working back from a loss you can accept is one way to stay inside that limit. It is not the only method, and it does not make the account safe.

Do I have to calculate pip value by hand?

No. Estimate it with this site’s pip value tool or the official calculator, then confirm the contract size and conversion in the platform.

Risk notice

This site is an independent guide, not the official Exness website. Trading involves a risk of loss, and you may lose all the funds in your trading account. This article is for learning only, not investment advice, and it does not promise returns. For fees, leverage, execution, and protection rules, rely on the official terms that apply to you.