AUDUSD Lot Size Calculator

Lot size for AUDUSD on MetaTrader 4. Risk percent and stop in pips, lots to open out.

Built for MetaTrader 4 New Order. Same formula on every symbol: risk money divided by stop distance times the value of 1.00 lot per pip or point. Check Tick value in Specification if your broker’s contract is not the preset.

Lots to open (MT4)0.50
Mini lots (0.10)5
Micro lots (0.01)50
Contract units50,000
Value / 1.00 lot / 1 pip10 USD
Risk if stop hits100 USD

Presets are common CFD specs. If MT4 Specification shows another Tick value, type that number. Brokers round lots (often 0.01). Spread can take the stop before your distance.

What is AUDUSD?

AUDUSD is the Australian dollar quoted in US dollars: the price tells you how many USD one AUD buys. AUD is the base currency and USD is the quote currency, which is why profit and loss on AUDUSD is booked in USD first.

AUDUSD pip value and contract size

1.00 standard lot of AUDUSD is 100,000 AUD. One pip is 0.0001. Pip value for 1.00 lot = 100,000 × 0.0001 = $10 per pip, paid in US dollars. That is $1 per pip on a mini lot (0.10) and $0.10 on a micro lot (0.01).

For a US dollar account no conversion is needed: $10 per pip on 1.00 lot, $1 on 0.10 lot and $0.10 on 0.01 lot.

How to calculate AUDUSD lot size

The calculator uses one formula on every market: lots = risk money ÷ (stop in pips × value of 1.00 lot per pip).

Example: a $10,000 account risking 1% ($100) with a 20 pip stop on AUDUSD: $100 ÷ (20 × $10) = 0.5 lots.

Double the stop and the lot size halves, with the same $100 at risk. That is the whole point of sizing from the stop instead of picking a lot size first.

How to use the AUDUSD lot size calculator

  1. Enter your account size and pick your account currency. Live FX rates convert the result if your account is in another currency.
  2. Set the percent of the account you accept to lose on this trade (1% is a common default) and your stop loss in pips, measured from entry to stop on the AUDUSD chart.
  3. Read Lots to open and type that number in MT4 New Order. Brokers round to 0.01, so round down, never up.

Common AUDUSD position sizing mistakes

  • Assuming every pair pays $10 per pip. That is only true for pairs quoted in USD on a USD account. AUDUSD is one of them, but crosses and USD base pairs are not.
  • Confusing pips with price. On AUDUSD a 20 pip stop is a 0.002 price move.
  • Picking the lot size first and placing the stop where it fits the lot. Place the stop where the trade idea is wrong, then size.
  • Forgetting spread and slippage. The stop can be hit before price reaches your level, so leave a margin or risk slightly less.

Educational content, not investment advice. Trading leveraged products such as CFDs and forex carries a high risk of losing money.

Frequently Asked Questions

There is no fixed lot size for AUDUSD; it comes from your risk and your stop. Lots = risk money ÷ (stop in pips × $10 per pip for 1.00 lot). Example: a $10,000 account risking 1% ($100) with a 20 pip stop on AUDUSD: $100 ÷ (20 × $10) = 0.5 lots.
0.01 lot of AUDUSD is 1,000 AUD, so one pip is worth $0.10 (pip size 0.0001). For a US dollar account no conversion is needed: $10 per pip on 1.00 lot, $1 on 0.10 lot and $0.10 on 0.01 lot.
With the preset specs, 1.00 lot of AUDUSD is worth $10 per pip, 0.10 lot $1 and 0.01 lot $0.10. For a US dollar account no conversion is needed: $10 per pip on 1.00 lot, $1 on 0.10 lot and $0.10 on 0.01 lot.
Decide how much money you accept to lose (for example 1% of the account), measure your stop in pips from entry, then divide: risk ÷ (stop × value of 1.00 lot per pip). This page does it for you and converts to your account currency with live rates.
1.00 standard lot of AUDUSD is 100,000 AUD. A mini lot (0.10) is 10,000 AUD and a micro lot (0.01) is 1,000 AUD.
No. Brokers can set different contract sizes, tick values and lot steps for AUDUSD. Open MT4 Market Watch, right click AUDUSD, choose Specification, and type the Tick value here if it differs from the preset. Most brokers round lots to 0.01.

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