AUD/USD Lot Size Calculator for Top One Trader

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Instrument Guide

AUD/USD is one of the more volatile major pairs, making position sizing crucial for risk management. The 65-pip average daily range is significantly higher than EUR/USD or GBP/USD, meaning your stop losses need more breathing room but also offer greater profit potential. For stop loss placement, I typically use 25-35 pips for swing trades (roughly 40-50% of daily range) and 15-20 pips for scalping. The pair respects technical levels well, so stops can be placed just beyond key support/resistance rather than using arbitrary pip distances. Worked example on a $100,000 account: For 1% risk ($1,000) with a 30-pip stop, you'd trade 3.33 mini lots (0.33 standard lots). At $10 per pip, this risks $1,000 exactly. For 2% risk ($2,000) with the same 30-pip stop, you'd use 6.67 mini lots (0.67 standard lots). The math is straightforward: Risk Amount ÷ (Stop Loss in Pips × $10) = Lot Size. So $1,000 ÷ (30 × $10) = 0.33 lots. AUD/USD suits Top One Trader's rules well. The 4% daily limit gives you 4 attempts at 1% risk, while the higher volatility means you can often capture 40-80 pips on winning trades - easily hitting that 10% profit target. The key is respecting the wider stops this pair demands due to its natural volatility, especially during Asian and overlap sessions when AUD news drives price action.

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