{"id":111,"date":"2026-02-01T00:00:00","date_gmt":"2026-01-31T16:00:00","guid":{"rendered":""},"modified":"2026-02-01T00:00:00","modified_gmt":"2026-01-31T16:00:00","slug":"st-scalpcalc-guide","status":"publish","type":"page","link":"https:\/\/workinvestspend.com\/WIS\/st-scalpcalc-guide\/","title":{"rendered":"ST Scalp Calculator Guide"},"content":{"rendered":"


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ST Scalp Calculator<\/h1>\n

A free MetaTrader 4 scalping tool with commission-aware position sizing, fixed pip TP, ATR-based stop loss, and one-click trade execution.<\/p>\n

Free Download<\/span> Scalping EA<\/span> v1.01<\/span><\/p>\n<\/div>\n<\/div>\n

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Who Is This For?<\/h2>\n<\/div>\n
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⚡<\/div>\n

Scalpers<\/h3>\n

Traders who target small, quick profits of 3–10 pips per trade. You get in, grab your pips, and get out — no waiting for big moves.<\/p>\n<\/div>\n

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💸<\/div>\n

Commission-Conscious Traders<\/h3>\n

When your target is only 5 pips, a 2-pip commission eats 40% of your profit<\/strong> if you don’t account for it. This tool makes sure you always net your target after costs.<\/p>\n<\/div>\n

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🎯<\/div>\n

Disciplined Risk Managers<\/h3>\n

You want every trade sized correctly at 2% risk — including commission costs. No mental math, no mistakes, no oversizing.<\/p>\n<\/div>\n<\/div>\n

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Why Scalpers Need a Commission-Aware Calculator<\/h2>\n
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The Problem Most Scalpers Ignore<\/h3>\n

Imagine you scalp for 5 pips<\/strong> profit with a 2-pip commission<\/strong>. Without accounting for commission:<\/p>\n

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  • You set TP at +5 pips from entry<\/li>\n
  • Trade hits TP — you think you made 5 pips<\/li>\n
  • Broker deducts 2 pips commission → actual profit: only 3 pips<\/strong><\/li>\n
  • Your risk-reward ratio is worse than you planned<\/li>\n
  • Over hundreds of trades, this silently destroys your edge<\/li>\n<\/ul>\n<\/div>\n
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    The Solution<\/h3>\n

    ST Scalp Calculator adds commission to your TP automatically. Just enter your broker’s commission in dollars per lot — the EA converts it to pips for each symbol:<\/p>\n

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    • You set: Commission = $7\/lot<\/strong>. On EURUSD the EA calculates this as 0.7 pips<\/strong><\/li>\n
    • Target: 5 pips + 0.7 pip commission → TP set at 5.7 pips from entry<\/strong><\/li>\n
    • When TP hits: gross +5.7 pips, minus 0.7 pip commission = net 5 pips exactly<\/strong><\/li>\n
    • Switch to USDJPY? Same $7 auto-converts to ~1.1 pips. No manual math needed<\/strong><\/li>\n
    • Lot sizing also includes commission in the risk calculation, so your 2% risk is accurate even at SL<\/li>\n<\/ul>\n<\/div>\n
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      <\/p>\n

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      What Does It Do?<\/h2>\n

      A draggable on-chart panel that calculates your position size with commission factored into both your take profit and your risk.<\/p>\n<\/div>\n

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      📊<\/div>\n

      ATR-Based Stop Loss<\/h3>\n

      Stop loss is set at 0.5 × ATR + spread. Adapts to each pair’s volatility so you’re never stopped out by random noise.<\/p>\n<\/div>\n

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      💰<\/div>\n

      Commission-Aware TP<\/h3>\n

      TP = your target pips + commission. What you see as “net profit” is what you actually keep after broker costs.<\/p>\n<\/div>\n

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      🧮<\/div>\n

      True Risk Sizing<\/h3>\n

      Lot size is calculated from SL distance plus<\/strong> commission. Your 2% risk means 2% including all costs — no hidden extra risk.<\/p>\n<\/div>\n<\/div>\n

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      <\/p>\n

      Panel Overview<\/h2>\n
      \n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
      Field<\/th>\nDescription<\/th>\n<\/tr>\n<\/thead>\n
      ATR(14)<\/strong><\/td>\n14-period Average True Range in pips (measures volatility).<\/td>\n<\/tr>\n
      Spread<\/strong><\/td>\nCurrent broker spread in pips.<\/td>\n<\/tr>\n
      Commission<\/strong><\/td>\nShows your commission in dollars per lot and the auto-calculated pip equivalent for the current symbol (e.g. $7\/lot = 0.7 pips<\/code>).<\/td>\n<\/tr>\n
      Direction<\/strong><\/td>\nBUY or SELL.<\/td>\n<\/tr>\n
      Entry<\/strong><\/td>\nEntry price (Ask for BUY, Bid for SELL).<\/td>\n<\/tr>\n
      Stop Loss<\/strong><\/td>\nPrice level: 0.5 × ATR + spread<\/code> from entry.<\/td>\n<\/tr>\n
      Take Profit<\/strong><\/td>\nPrice level: target pips + commission pips<\/code> from entry.<\/td>\n<\/tr>\n
      SL Pips<\/strong><\/td>\nStop loss distance + commission = total risk in pips if SL hit.<\/td>\n<\/tr>\n
      TP (gross)<\/strong><\/td>\nTotal TP distance in pips (target + commission).<\/td>\n<\/tr>\n
      TP (net)<\/strong><\/td>\nYour actual profit in pips after commission is deducted. This is what you keep.<\/td>\n<\/tr>\n
      Lot Size<\/strong><\/td>\nPosition size. Accounts for commission in the risk denominator.<\/td>\n<\/tr>\n
      Risk (w\/comm)<\/strong><\/td>\nActual dollar risk including commission, after lot rounding.<\/td>\n<\/tr>\n
      R:R (net)<\/strong><\/td>\nNet reward (after comm) divided by total risk (SL + comm). The true ratio.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n
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      <\/p>\n

      How to Install<\/h2>\n
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      Step 1 —<\/strong> Download the file ST_ScalpCalc.mq4<\/code><\/p>\n

      Step 2 —<\/strong> Open MetaTrader 4 and go to File → Open Data Folder<\/strong><\/p>\n

      Step 3 —<\/strong> Navigate to MQL4\/Experts\/<\/code> and paste the file there<\/p>\n

      Step 4 —<\/strong> Back in MT4, open the Navigator<\/strong> panel (Ctrl+N)<\/p>\n

      Step 5 —<\/strong> Right-click on Expert Advisors<\/strong> and click Refresh<\/strong><\/p>\n

      Step 6 —<\/strong> Drag ST_ScalpCalc<\/strong> onto any chart<\/p>\n<\/div>\n

      \nImportant:<\/strong> In the EA properties dialog, tick “Allow live trading”<\/strong> under the Common tab. Also ensure the AutoTrading<\/strong> button in the MT4 toolbar is enabled (green icon).\n<\/div>\n
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      <\/p>\n

      How to Use<\/h2>\n

      1. Set Your Commission<\/h3>\n

      Press F7<\/strong> to open EA properties. In the Inputs<\/strong> tab, set Commission_USD<\/code> to your broker’s round-trip commission in dollars per standard lot<\/strong>. The EA automatically converts this to pips for whatever symbol you’re trading.<\/p>\n

      \n\n\n\n\n\n\n\n\n
      Broker Type<\/th>\nCommission per RT Lot<\/th>\nSet Commission_USD To<\/th>\n<\/tr>\n<\/thead>\n
      ECN (e.g. Blueberry, IC Markets, Pepperstone)<\/td>\n$7<\/td>\n7.0<\/td>\n<\/tr>\n
      ECN (lower tier)<\/td>\n$5<\/td>\n5.0<\/td>\n<\/tr>\n
      High commission broker<\/td>\n$10<\/td>\n10.0<\/td>\n<\/tr>\n
      Spread-only broker (no separate commission)<\/td>\n$0<\/td>\n0.0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n
      \nThe EA does the math for you.<\/strong> You enter dollars once, and it auto-converts to pips for each symbol using the tick value. For example, $7\/lot on EURUSD = 0.7 pips, on USDJPY ≈ 1.1 pips. The panel shows the conversion so you can verify: $7\/lot = 0.7 pips<\/code>.\n<\/div>\n

      2. Choose Direction<\/h3>\n

      Click BUY<\/strong> or SELL<\/strong>. All values update instantly and lines are drawn on the chart.<\/p>\n

      3. Review the Numbers<\/h3>\n

      Check the panel. Pay special attention to:<\/p>\n