USDJPY Lot Size Calculator

Lot size for USDJPY 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)0.7913
Mini lots (0.10)7.913
Micro lots (0.01)79.13
Contract units79,125
Value / 1.00 lot / 1 pip6.3191 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 USDJPY?

USDJPY is the US dollar quoted in Japanese yen: the price tells you how many JPY one USD buys. USD is the base currency and JPY is the quote currency, which is why profit and loss on USDJPY is booked in JPY first.

USDJPY pip value and contract size

1.00 standard lot of USDJPY is 100,000 USD. One pip is 0.01, because JPY pairs are quoted to 2 or 3 decimals. Pip value for 1.00 lot = 100,000 × 0.01 = ¥1,000 per pip, paid in Japanese yen. That is ¥100 per pip on a mini lot (0.10) and ¥10 on a micro lot (0.01).

For a US dollar account, divide the Japanese yen pip value by the USDJPY price: pip value in USD = ¥1,000 ÷ USDJPY price for 1.00 lot. The calculator above does this with the latest rate.

How to calculate USDJPY 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 ¥1,000,000 account risking 1% (¥10,000) with a 20 pip stop on USDJPY: ¥10,000 ÷ (20 × ¥1,000) = 0.5 lots.

Double the stop and the lot size halves, with the same ¥10,000 at risk. That is the whole point of sizing from the stop instead of picking a lot size first.

How to use the USDJPY 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 USDJPY 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 USDJPY position sizing mistakes

  • Assuming every pair pays $10 per pip. That is only true for pairs quoted in USD on a USD account. USDJPY is quoted in JPY, so its USD pip value moves with the exchange rate.
  • Confusing pips with price. On USDJPY a 20 pip stop is a 0.2 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 USDJPY; it comes from your risk and your stop. Lots = risk money ÷ (stop in pips × ¥1,000 per pip for 1.00 lot). Example: a ¥1,000,000 account risking 1% (¥10,000) with a 20 pip stop on USDJPY: ¥10,000 ÷ (20 × ¥1,000) = 0.5 lots.
0.01 lot of USDJPY is 1,000 USD, so one pip is worth ¥10 (pip size 0.01). For a US dollar account, divide the Japanese yen pip value by the USDJPY price: pip value in USD = ¥1,000 ÷ USDJPY price for 1.00 lot. The calculator above does this with the latest rate.
With the preset specs, 1.00 lot of USDJPY is worth ¥1,000 per pip, 0.10 lot ¥100 and 0.01 lot ¥10. For a US dollar account, divide the Japanese yen pip value by the USDJPY price: pip value in USD = ¥1,000 ÷ USDJPY price for 1.00 lot. The calculator above does this with the latest rate.
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 USDJPY is 100,000 USD. A mini lot (0.10) is 10,000 USD and a micro lot (0.01) is 1,000 USD.
No. Brokers can set different contract sizes, tick values and lot steps for USDJPY. Open MT4 Market Watch, right click USDJPY, 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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