Input (Pip value and risk %) Output Lot size, can anyone help me plz

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Hello i´m new in trading with MT4, i have change my broker to ECN.

My previously broker havent Lot´s and the calculation is a little complicated, i miss a lot of trades coz i calculate to slow my risk value.

What i´m looking for is an tool with this i can input my balance and how many % i will risk, than i input how many pips my sl is and the tool show my how many lots i need

exemple:

acc balance: 10.000 EUR

Risk per trade: 0,5 %

StopLoss: 7 Pips

Lots i need: _____

Thank you very much! Sorry for my bad englisch i´m german

 
mike24:

Hello i´m new in trading with MT4, i have change my broker to ECN.

My previously broker havent Lot´s and the calculation is a little complicated, i miss a lot of trades coz i calculate to slow my risk value.

What i´m looking for is an tool with this i can input my balance and how many % i will risk, than i input how many pips my sl is and the tool show my how many lots i need

exemple:

acc balance: 10.000 EUR

Risk per trade: 0,5 %

StopLoss: 7 Pips

Lots i need: _____

Thank you very much! Sorry for my bad englisch i´m german


Here is such function : (open = ASK or BID, sl = sl in Pips * Point)

double GetVolume(double open,double sl, double ed_RiskOfBalancePerTrade)
{
   double  gd_MinLot  = MarketInfo(Symbol(), MODE_MINLOT);
   double  gd_MaxLot  = MarketInfo(Symbol(), MODE_MAXLOT);
   double  gd_LotStep = MarketInfo(Symbol(), MODE_LOTSTEP);
   double tickval = MarketInfo(Symbol(), MODE_TICKVALUE);
   double dif     = MathAbs(open - sl)/Point;
   
   if (dif==0)
      return(0);
   
   double balance = AccountBalance();

   double res = MathFloor(balance * ed_RiskOfBalancePerTrade/100 / dif / tickval / gd_LotStep) * gd_LotStep;

   if (res < gd_MinLot)
      res = gd_MinLot;
   
   if (res > gd_MaxLot)
      res = gd_MaxLot;
   
   res = NormalizeDouble(res, 2);
   
   return(res);
}
 

Thank you!


Can you explain me what i have to do with it

 
mike24:

Thank you!


Can you explain me what i have to do with it


You shold call this functon in your EA...

Besides, it is possible to write separate program as the Tool, that can print the resulting Lot's size...if you trade manually....

 
more:


Here is such function : (open = ASK or BID, sl = sl in Pips * Point)

Your code assumes that TickSize = Point so that TickValue is the value per Point in deposit currency. While this may be true for most currencies, it may not be true for other instruments.

double PositionSize_FixedFractional(int StoplossDistance_inPoints, double RiskPercent, double AcctBalance = 0) {
   double lotstep = MarketInfo(Symbol(), MODE_LOTSTEP), 
          minlot = MarketInfo(Symbol(), MODE_MINLOT), 
          maxlot = MarketInfo(Symbol(), MODE_MAXLOT);
        
   // validate passed parameters
   if (RiskPercent <= 0 || StoplossDistance_inPoints <= 0)
      return (minlot);
   else if (AcctBalance <= 0)
      AcctBalance = AccountBalance();
      
   // calculate raw lotsize (my deposit currency is USD)
   double PointValue = MarketInfo(Symbol(), MODE_TICKVALUE) / (MarketInfo(Symbol(), MODE_TICKSIZE) / Point),
          RiskAmount = MathFloor(AcctBalance * RiskPercent / 0.01) * 0.01,
          StoplossValue = StoplossDistance_inPoints * PointValue,
          lotsize = RiskAmount / StoplossValue;
                   
   // condition raw lotsize
   lotsize = MathFloor(lotsize / lotstep) * lotstep;
   if (lotsize < minlot)
      lotsize = minlot;
   if (lotsize > maxlot)
      lotsize = maxlot;
   
   // return conditioned lotsize
   return (lotsize);
}
 
Thirteen:

Your code assumes that TickSize = Point so that TickValue is the value per Point in deposit currency. While this may be true for most currencies, it may not be true for other instruments.


Well, it was idea, no more...
 
more:

Well, it was idea, no more...


we know, you have given a try to help.....

that's no problem, it is something good

helping others, might give you more experience as you see now here happening

 
deVries:


we know, you have given a try to help.....

that's no problem, it is something good

helping others, might give you more experience as you see now here happening

Agreed. We learn by doing and by helping others. Working out solutions to questions posted here actually helps me become a better MQL programmer.
 

Can anyone take the code in an .ex4 file and upload it?

Thank you guys

Is it possible to show the lotsize for 0,5% risk for the actual currency pair based on balance not equity? thats what i´m looking for

 
mike24:

Can anyone take the code in an .ex4 file and upload it?

There is no code in an .ex4 file, it's compiled. You need the source, the .mq4 file is you want the code, if it's not your code ask permission of the person that wrote it.
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