How do I convert the amount of money into lot size?

[mql4student]

I'm trying to convert the amount of money into lotsize to buy or sell.

let's say account balance is: $1000

Lotsize risk percent is: 20

the formula I used below return the value of $20. How do I convert that into lot size?  

 Here's the code I'm working on. What am I missing?

 

 double RiskedAmount=AccountBalance()*(LotSizeRiskPercent/100)*0.01;

[Carl Schreiber]

mql4student:

I'm trying to convert the amount of money into lotsize to buy or sell.

let's say account balance is: $1000

Lotsize risk percent is: 20

the formula I used below return the value of $20. How do I convert that into lot size?  

 Here's the code I'm working on. What am I missing?

 

Do you know google or the search filed (top right) here?

I'll bet it's a lot faster than waiting for someone answering your question which has been discussed here many times with solutions and code!

[mql4student]

I just thought about something. 

riskpercent = 20 so 20/100 =  .20 * 0.01 = .002

$1000 * .002 =  2 /100 = 0.02

 

I'm asking about the math equation, not what code to use. 

is this formula correct? 

 double RiskedAmount=(AccountBalance()*(LotSizeRiskPercent/100)*0.01) /100;

[Donald Gibson]

mql4student:

I just thought about something. 

riskpercent = 20 so 20/100 =  .20 * 0.01 = .002

$1000 * .002 =  2 /100 = 0.02

 

I'm asking about the math equation, not what code to use. 

is this formula correct? 

double RMLotSize()
  {
/*
//-------------------------------------------------------------------------------------------------
//Risk Management - LotSize
//-------------------------------------------------------------------------------------------------
extern string Risk="Use Risk Management to set LotSize - True or False";//Alert
extern bool   Use_RiskManagement_LotSize=false;//Choose True or False
extern double Risk_Percent=2;//Percentage of Account Balance to Risk
extern string Risk_break="";//=======================================
//-------------------------------------------------------------------------------------------------
*/
//-------------------------------------------------------------------------------------------------
//lotsize based on risk capitol
   double Acct_Equity=AccountInfoDouble(ACCOUNT_EQUITY);
   double Acct_RiskCapitol=Acct_Equity*(Risk_Percent*0.01);
   double LotSize=Acct_RiskCapitol*0.01;
//-------------------------------------------------------------------------------------------------
//if lotsize is more than is permitted change the lotsize to the maximum  permitted
   if(LotSize>MarketInfo(Symbol(),MODE_MAXLOT)) {LotSize=MarketInfo(Symbol(),MODE_MAXLOT);}
//-------------------------------------------------------------------------------------------------
//if lotsize is less than is permitted change the lotsize to the minimum  permitted  
   if(LotSize<MarketInfo(Symbol(),MODE_MINLOT)) {LotSize=MarketInfo(Symbol(),MODE_MINLOT);}
//-------------------------------------------------------------------------------------------------
//if there is no orders available print Account Information and LotSize available   
   if(OrdersTotal()==0)
     {
      Print("-------------------------------------------------------------------------------------------------");
      Print("LotSize based on the Capitol available...",DoubleToStr(LotSize,2));
      Print("Amount of Capitol to Risk...",DoubleToStr(Acct_RiskCapitol,2));
      Print("-------------------------------------------------------------------------------------------------");
     }
   return(LotSize);
  }

This is what I use. Hope it helps.

[Siti Latifah]

may be you can see here..

https://www.mql5.com/en/code/13593