Need Help - EA's Lot calculator

Quoting Edmund.J

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Anyone knows the logic for Lot calculator? (My English skill is not good..) ex) Want to setting risk per trade $50 Now an pair price is 1.00000 for a long position, SL price 0.99900 then, EA make a long trade with lot calculating for $50 loss Plz.. help me

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Quoting BlueRain

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{quote} Below function will calculate lotsize. You provide pip and riskmoney. double CalcRiskLotSize(int iSL,double TotalRiskMoney) { // double PValue=(((MarketInfo(Symbol(),MODE_TICKVALUE)*point)/MarketInfo(Symbol(),MODE_TICKSIZE))*LotSize); int iPipMult[]={1,10,1,10,1,10,100}; double dRiskCapital=TotalRiskMoney; double size = NormalizeDouble( dRiskCapital/(iSL*MarketInfo(Symbol(),MODE_TICKVALUE)*iPipMult[Digits]),2); return( size ); }

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Quoting BlueRain

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Quoting Edmund.J

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{quote} Thank you! But... I don'tthis is the lotsize you are going to lose if you hit SL ( ask - 10 pip in long ) If you don't understand, you might want to get sample EAs and study a bit more. Even your OrderSend() is in wrong format. it is missing targetprice. Before you call your Ordersend, get lotsize example: 10 pip stoploss with $50.00 risk. double lot = CalcRiskLotSize(10,50); Next, call OrderSend with this lot If your entry hit stoploss, you will lose $50.00 with this lotsize. In your example, you will get Pip size

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