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Cross pairs · Free calculator

EURJPY lot size calculator

On EUR/JPY one pip is 0.01 and a lot is 100,000 EUR, so a pip is worth ¥1,000 per lot, $6.67 at USD/JPY 150. Risking $100 with a 35-pip stop gives 0.42 lots.

Risk per trade
Position size (rounded down to 0.01 lot)
0.42 lots
Risk amount$100.00
Exact size0.4286 lots
Mini lots (0.10)4.29
Micro lots (0.01)42.9
Units42,857 EUR
Value of 1 pip per lot$6.67

USD account. 1 lot = 100,000 EUR; 1 pip = 0.01. Converted to USD at the USD/JPY rate. Spread and commission not included.

The calculator opens on the worked example below: a USD account, 1% of $10,000, USD/JPY at an example rate of 150. Trading involves substantial risk of loss and is not suitable for every investor. Edgoro is a software tool, not a broker or financial adviser: nothing it produces is investment advice, and past or backtested performance does not guarantee future results.

What 1 pip is on EURJPY

EUR/JPY is a yen cross: the price is yen per euro, the pip is the second decimal, and 100,000 EUR × 0.01 = ¥1,000 per pip per lot, the same yen amount as on every JPY pair.

Converting to dollars uses USD/JPY, not EUR/JPY: ¥1,000 ÷ 150 = $6.67. So EUR/JPY, GBP/JPY and AUD/JPY all have the same dollar pip value per lot; only their usual stop sizes differ. MT5 quotes 3 digits (174.125), so 1 pip = 10 points and the 0.001 tick is worth ¥100.

EURJPY pip value per lot

Value of one pip (0.01 in price): 0.01 × 100,000 = ¥1,000 ÷ 150 = $6.67 per 1.00 lot, at an example USD/JPY rate of 150.

Position1 pip35 pips (0.35)
1.00 lot$6.67$233.33
0.10 lot$0.67$23.33
0.01 lot$0.0667$2.33

Worked example: 1% of $10,000

  1. Risk: 1% × $10,000 = $100.00.
  2. Stop: 35 pips = 0.35 in price.
  3. Value of 1 pip per 1.00 lot: $6.67.
  4. Lot size = $100.00 ÷ (35 × $6.67) = 0.4286, rounded down to the 0.01 step: 0.42 lots.

The exact size is 0.4286 lots. Rounded down to 0.42, the loss at the stop is about $98.

Contract size and tick value in MT5

In MetaTrader 5, right-click EURJPY in Market Watch and choose Specification: it shows Contract size, Digits, Profit currency and the volume limits. Tick size and tick value are what MQL5 reads with SYMBOL_TRADE_TICK_SIZE and SYMBOL_TRADE_TICK_VALUE; the script below prints them for your account.

Contract size100,000 EUR
Digits3 (e.g. 150.125) at most brokers
Tick size (SYMBOL_TRADE_TICK_SIZE)0.001
1 pip0.01 = 10 ticks (10 MT5 points)
Profit currencyJPY
Tick value, 1.00 lot (SYMBOL_TRADE_TICK_VALUE)¥100, about $0.67 in a USD account at USD/JPY 150
Volume stepShown in Specification; 0.01 at most retail brokers

MQL5: lot size from a money risk

A script that sends no order: it reads the contract size, tick size, tick value and volume limits your broker sets for EURJPY, then prints the lot size that risks 1% of the balance at the stop. The stop is a price distance (0.35), so the result is the same on 2-, 3- or 5-digit quotes. Save it as MQL5/Scripts/LotSize_EURJPY.mq5 and compile it in MetaEditor (F7): 0 errors, 0 warnings.

MQL5
//+------------------------------------------------------------------+
//| LotSize_EURJPY.mq5                                             |
//| Lot size that risks a % of the balance at a given stop distance|
//+------------------------------------------------------------------+
#property script_show_inputs

input string InpSymbol       = "EURJPY"; // Symbol, exactly as in Market Watch
input double InpRiskPercent  = 1.0;      // Risk per trade, % of balance
input double InpStopDistance = 0.35;     // Stop-loss distance in price (0.35 = 35 pips)

// Lots that lose about riskMoney at the stop, rounded down to the volume step.
// Returns 0 when even the minimum volume would risk more than riskMoney.
double LotsForRisk(const string symbol, const double riskMoney, const double stopDistance)
  {
   double tickSize  = SymbolInfoDouble(symbol, SYMBOL_TRADE_TICK_SIZE);
   double tickValue = SymbolInfoDouble(symbol, SYMBOL_TRADE_TICK_VALUE); // 1.00 lot, one tick, account currency
   double step      = SymbolInfoDouble(symbol, SYMBOL_VOLUME_STEP);
   double minLot    = SymbolInfoDouble(symbol, SYMBOL_VOLUME_MIN);
   double maxLot    = SymbolInfoDouble(symbol, SYMBOL_VOLUME_MAX);
   if(tickSize <= 0.0 || tickValue <= 0.0 || step <= 0.0 || stopDistance <= 0.0)
      return 0.0;
   double lossPerLot = stopDistance / tickSize * tickValue;            // money lost by 1.00 lot at the stop
   double lots       = MathFloor(riskMoney / lossPerLot / step + 1e-9) * step;
   if(lots < minLot)
      return 0.0;
   int volumeDigits = (int)MathMax(0.0, MathCeil(-MathLog10(step) - 1e-9));
   return NormalizeDouble(MathMin(lots, maxLot), volumeDigits);
  }

void OnStart()
  {
   if(!SymbolSelect(InpSymbol, true))
     {
      PrintFormat("%s not found: use the exact name from Market Watch (some brokers add a suffix)", InpSymbol);
      return;
     }
   int    digits   = (int)SymbolInfoInteger(InpSymbol, SYMBOL_DIGITS);
   double point    = SymbolInfoDouble(InpSymbol, SYMBOL_POINT);
   double contract = SymbolInfoDouble(InpSymbol, SYMBOL_TRADE_CONTRACT_SIZE);
   double tickSize = SymbolInfoDouble(InpSymbol, SYMBOL_TRADE_TICK_SIZE);
   double tickVal  = SymbolInfoDouble(InpSymbol, SYMBOL_TRADE_TICK_VALUE);
   string currency = AccountInfoString(ACCOUNT_CURRENCY);
   double risk     = AccountInfoDouble(ACCOUNT_BALANCE) * InpRiskPercent / 100.0;
   double lots     = LotsForRisk(InpSymbol, risk, InpStopDistance);

   PrintFormat("%s: contract size %g, %d digits, tick size %s, tick value %g %s per lot",
               InpSymbol, contract, digits, DoubleToString(tickSize, digits), tickVal, currency);
   PrintFormat("Stop %s = %.0f points. Risk %.2f %s",
               DoubleToString(InpStopDistance, digits), InpStopDistance / point, risk, currency);
   if(lots > 0.0)
      PrintFormat("Lot size: %g", lots);
   else
      Print("Even the minimum volume risks more than that: widen the risk or tighten the stop");
  }

The key line is stopDistance / tickSize * tickValue: the money one lot loses at the stop, already converted to your account currency by the terminal. Dividing the risk by it and flooring to SYMBOL_VOLUME_STEP gives the volume to pass to CTrade::Buy() or CTrade::Sell().

Pine Script v6 equivalent

The same sizing on a TradingView chart, from syminfo.pointvalue (money per 1.0 of price per unit) and syminfo.mintick (the chart's tick). Checked by Edgoro Pine Check; paste it into TradingView's Pine Editor to add it to a chart.

Pine Script v6
//@version=6
indicator("EURJPY lot size for a money risk", overlay = true)

riskMoney    = input.float(100.0, "Risk per trade (account currency)", minval = 0.01)
accountCcy   = input.string("USD", "Account currency")
stopDistance = input.float(0.35, "Stop-loss distance (price)", minval = 0.0)
contractSize = input.float(100000.0, "Units per 1.00 lot at your broker", minval = 0.0)

// One unit of the symbol gains or loses syminfo.pointvalue (in syminfo.currency) per 1.0 of price
fx          = request.currency_rate(syminfo.currency, accountCcy)
lossPerUnit = stopDistance * syminfo.pointvalue * fx
units       = lossPerUnit > 0 ? riskMoney / lossPerUnit : na
lots        = contractSize > 0 ? math.floor(units / contractSize * 100) / 100 : na

var table info = table.new(position.top_right, 2, 3, bgcolor = color.new(color.gray, 80))
if barstate.islast
    table.cell(info, 0, 0, "Stop")
    table.cell(info, 1, 0, str.tostring(stopDistance / syminfo.mintick, "#") + " ticks of " + str.tostring(syminfo.mintick))
    table.cell(info, 0, 1, "Units")
    table.cell(info, 1, 1, str.tostring(units, "#.####"))
    table.cell(info, 0, 2, "Lots (rounded down)")
    table.cell(info, 1, 2, str.tostring(lots, "#.##"))

On a TradingView forex chart, syminfo.pointvalue is 1: units is an amount of EUR, and 100,000 of them make a lot. request.currency_rate() converts the JPY result into your account currency.

Common mistakes on EURJPY

  • Converting with EUR/JPY. ¥1,000 ÷ 174 = $5.75 is wrong: yen convert to dollars at USD/JPY. The error makes the position about 16% too large.
  • Carrying a stop over from EUR/USD. A stop in pips doesn't transfer between pairs; size from the stop this chart needs.
  • Decimal places. A 35-pip stop is 0.35 in price and 350 points in MT5, not 0.0035.

Lot size sets how much a trade loses if the stop is hit at its price. It doesn't make a trade a good one, and gaps or slippage can make the loss larger. Trading involves substantial risk of loss and is not suitable for every investor. Edgoro is a software tool, not a broker or financial adviser: nothing it produces is investment advice, and past or backtested performance does not guarantee future results.

All 34 symbols

Tools and code for the same job

Want the sizing inside an Expert Advisor?

Describe your EURJPY strategy in plain English and Edgoro's MT5 EA generator writes the MQL5 Expert Advisor, with risk-based lot sizing like the script above, and compiles it in MetaEditor before you get it. Test it on a demo account: a clean build isn't proof that a strategy works.