How gold is quoted
XAUUSD is the price of one troy ounce of gold in US dollars, quoted to two decimals: 4,328.40 means $4,328.40 per ounce. Brokers differ on what they call a "pip" on gold — some mean $0.01, some mean $0.10 — which is why smart traders skip the word entirely and think in dollars of price movement.
That habit removes every ambiguity: "my stop is $5 away" is exact, on any broker, forever. All the maths below works in dollars of movement.
The only three numbers you need
1 standard lot = 100 oz, so a $0.01 move = $1, and a $1.00 move = $100 per lot. Scale down linearly: 0.10 lots means a $1 move is $10; 0.01 lots means a $1 move is $1. That is the entire pip-value table for gold.
Feel it with a real day: gold ranging $40 in a session swings a 1-lot position $4,000, a 0.10-lot position $400, and a 0.01-lot position $40. Same market, three different heart rates — lot size IS your risk dial.
The position sizing formula
Size the stop first, then let the lot size follow: lot size = (account × risk%) ÷ (stop distance in $ × 100). The stop distance comes from the chart — beyond the sweep wick or zone edge plus a buffer — never from a lot size you already decided you wanted.
This single habit inverts what losing traders do. They pick a big lot, then squeeze the stop until it fits, park it inside the noise, and get cleaned out by an ordinary wick. The formula makes the market set your size.
Worked examples: $500, $5,000, $50,000
Risking 1% with a $5 stop (a normal M15 gold stop): $500 account → $5 risk ÷ ($5 × 100) = 0.01 lots. $5,000 account → $50 ÷ 500 = 0.10 lots. $50,000 account → $500 ÷ 500 = 1.00 lot. Wider $10 stop? Halve each size. Tighter $2.50 stop? Double it. The risk in dollars never changes — only the lot size flexes.
Notice the $500 account: 0.01 lots is the honest size, and that is fine. Trading it at 0.10 "to make it worth it" is risking 10% per trade — a countdown, not a strategy.
Why oversizing kills specifically on gold
Gold's daily range regularly runs $30–$60, and news candles print $20 in seconds. Oversized positions turn that ordinary volatility into forced errors: stops yanked, margins called, revenge doubling. The account does not die on the analysis — it dies on the fifth oversized loser in a row.
The professional frame: your edge only exists across dozens of trades, and fixed fractional sizing (0.5–1%) is what lets you be present for all of them. Full stop-placement logic lives in stop loss and take profit on gold.
Do the maths on the chart, not in your head
The free XAUUSD live chart has a built-in R:R tool: drag it on the chart and it shows your stop distance in dollars and your reward multiple instantly, so the formula above becomes a ten-second habit. Pair it with the zone tools so stops always sit beyond real structure.
Then make it mechanical: same risk%, every trade, sized by formula — and go put the edge itself to work with the gold trading strategy.
FAQ
How much is 1 pip on XAUUSD?
Depends on the broker's definition, which is why pros think in dollars instead: on one standard lot (100 oz), a $0.01 move = $1 and a $1.00 move = $100. Scale linearly for smaller lots.
What lot size should I use with a $100 account?
With a $5 stop and 1% risk the formula gives 0.002 lots — below most brokers' minimum. Honest answer: trade 0.01 only with wider risk tolerance, or grow the account first; $100 is practice money, not sizing money.
Does leverage change my risk on gold?
Leverage changes how much margin you post, not how many dollars you lose per move — lot size and stop distance decide that. High leverage just lets you make the oversizing mistake faster. Nothing here is financial advice.
ⓘ See these ideas on real price: open the free XAUUSD live chart.