Position Sizing on a $5,000 Account: The Exact Math

Position sizing is the one calculation that separates traders who last from traders who do not, and it takes about 30 seconds once you know the steps. The goal is simple: no matter what the trade is, if the stop gets hit you lose the same small, planned amount. On a $5,000 account that amount should be $50 to $100 per trade, one to two per cent. Everything else follows from that.

The order of operations matters. Beginners decide the position size first and let the risk fall out of it, which is how a trade ends up costing 20 per cent of the account. Do it the other way: risk first, stop second, size last.

The three steps

1. Risk amount. One per cent of $5,000 is $50. Use that as your default.
2. Stop distance. Decide where the stop goes based on the chart, a level, a swing point, or an ATR multiple. Measure the distance from your entry to the stop in pips (or dollars for gold).
3. Position size. Divide the risk amount by the stop distance times the pip value per lot. That gives you the lot size that makes the stop-out cost exactly your risk amount.

Worked example: EUR/USD

You want to short EUR/USD with a 25-pip stop. Risk is $50. On EUR/USD, one standard lot (100,000 units) is worth about $10 per pip, so a mini lot (10,000) is $1 per pip and a micro lot (1,000) is $0.10 per pip. You need the position where 25 pips equals $50, which means $2 per pip. That is 0.20 lots. If the stop is hit, you lose 25 pips times $2, which is $50, exactly one per cent.

Worked example: USD/JPY

USD/JPY, 40-pip stop, $50 risk. On USD/JPY a standard lot is worth roughly $6.70 per pip at current rates, so a mini lot is about $0.67. You need 40 pips to equal $50, which is $1.25 per pip. That is about 0.19 lots, call it 0.18 to be safe. A 40-pip stop-out costs around $48. Note the position is smaller than the EUR/USD example because the stop is wider.

Worked example: gold

Gold, $30 stop (300 'points' if your platform quotes cents), $50 risk. In gold, one lot (100 ounces) moves $100 per $1 of price, so $1 per cent per ounce. A 0.10-lot position is $10 per $1 move, or $0.10 per cent. You need $30 of adverse move to equal $50, which is roughly $1.67 per $1 move, so about 0.17 lots. Gold's wide stops always force the position size down, which is the protection you want on a volatile instrument.

Rizal used to size every trade at 0.5 lots regardless of the pair or the stop. A tight-stop EUR/USD trade and a wide-stop gold trade risked completely different amounts, and he had no idea which was which until the trade closed. He now keeps a simple calculator open: risk $50, type in the stop, read the lot size. His losses went from a range of $20 to $400 down to a consistent $45 to $55, and his account stopped having the sudden drops that used to undo good weeks.

Why 1% and not 5%

A strategy with a positive edge still produces losing streaks of six, seven, eight trades. At one per cent risk, an eight-loss streak is roughly an eight per cent drawdown: recoverable, and the strategy keeps working. At five per cent risk, the same streak is a 34 per cent drawdown, which needs a 52 per cent gain to recover and often triggers panic decisions long before that. The drawdown recovery guide shows the full table. One per cent is not cautious. It is the level at which a normal losing streak is survivable.

Frequently asked

Related reading

• The 2% Rule on a $1,000 Account, With Real Numbers
• How Session Volatility Changes What You Should Risk Per Trade
• $5,000 vs $500: Same Strategy, Two Account Sizes, Two Outcomes