diff --git a/src/analysis/raster/qgsrastercalculator.cpp b/src/analysis/raster/qgsrastercalculator.cpp
index 99a67a7..81d7e46 100644
--- a/src/analysis/raster/qgsrastercalculator.cpp
+++ b/src/analysis/raster/qgsrastercalculator.cpp
@@ -31,8 +31,8 @@
 #define TO8(x) (x).toLocal8Bit().constData()
 #endif
 
-QgsRasterCalculator::QgsRasterCalculator( const QString& formulaString, const QString& outputFile, const QString& outputFormat,
-    const QgsRectangle& outputExtent, int nOutputColumns, int nOutputRows, const QVector<QgsRasterCalculatorEntry>& rasterEntries ): mFormulaString( formulaString ), mOutputFile( outputFile ), mOutputFormat( outputFormat ),
+QgsRasterCalculator::QgsRasterCalculator( const QString& formulaString, const QString& outputFile, const QString& outputFormat, const QString& outputPixelFormat,
+    const QgsRectangle& outputExtent, int nOutputColumns, int nOutputRows, const QVector<QgsRasterCalculatorEntry>& rasterEntries ): mFormulaString( formulaString ), mOutputFile( outputFile ), mOutputFormat( outputFormat ), mOutputPixelFormat( outputPixelFormat ),
     mOutputRectangle( outputExtent ), mNumOutputColumns( nOutputColumns ), mNumOutputRows( nOutputRows ), mRasterEntries( rasterEntries )
 {
 }
@@ -201,7 +201,8 @@ int QgsRasterCalculator::processCalculation( QProgressDialog* p )
       }
 
       //write scanline to the dataset
-      if ( GDALRasterIO( outputRasterBand, GF_Write, 0, i, mNumOutputColumns, 1, calcData, mNumOutputColumns, 1, GDT_Float32, 0, 0 ) != CE_None )
+      GDALDataType pixelFormatDGT = GDALGetDataTypeByName( mOutputPixelFormat.toLocal8Bit().data() );
+      if ( GDALRasterIO( outputRasterBand, GF_Write, 0, i, mNumOutputColumns, 1, calcData, mNumOutputColumns, 1, pixelFormatDGT, 0, 0 ) != CE_None )
       {
         qWarning( "RasterIO error!" );
       }
@@ -272,9 +273,12 @@ GDALDriverH QgsRasterCalculator::openOutputDriver()
 
 GDALDatasetH QgsRasterCalculator::openOutputFile( GDALDriverH outputDriver )
 {
+  GDALDataType pixelFormatDGT = GDALGetDataTypeByName( mOutputPixelFormat.toLocal8Bit().data() );
+
   //open output file
   char **papszOptions = NULL;
-  GDALDatasetH outputDataset = GDALCreate( outputDriver, mOutputFile.toLocal8Bit().data(), mNumOutputColumns, mNumOutputRows, 1, GDT_Float32, papszOptions );
+  GDALDatasetH outputDataset = GDALCreate( outputDriver, mOutputFile.toLocal8Bit().data(), mNumOutputColumns, mNumOutputRows, 1, pixelFormatDGT, papszOptions );
+
   if ( outputDataset == NULL )
   {
     return outputDataset;
diff --git a/src/analysis/raster/qgsrastercalculator.h b/src/analysis/raster/qgsrastercalculator.h
index 3972f60..5f0940e 100644
--- a/src/analysis/raster/qgsrastercalculator.h
+++ b/src/analysis/raster/qgsrastercalculator.h
@@ -39,7 +39,7 @@ struct ANALYSIS_EXPORT QgsRasterCalculatorEntry
 class ANALYSIS_EXPORT QgsRasterCalculator
 {
   public:
-    QgsRasterCalculator( const QString& formulaString, const QString& outputFile, const QString& outputFormat,
+    QgsRasterCalculator( const QString& formulaString, const QString& outputFile, const QString& outputFormat, const QString& outputPixelFormat,
                          const QgsRectangle& outputExtent, int nOutputColumns, int nOutputRows, const QVector<QgsRasterCalculatorEntry>& rasterEntries );
     ~QgsRasterCalculator();
 
@@ -88,6 +88,7 @@ class ANALYSIS_EXPORT QgsRasterCalculator
     QString mFormulaString;
     QString mOutputFile;
     QString mOutputFormat;
+    QString mOutputPixelFormat;
 
     /**Output raster extent*/
     QgsRectangle mOutputRectangle;
diff --git a/src/app/qgisapp.cpp b/src/app/qgisapp.cpp
index 58b4437..78ae0ff 100644
--- a/src/app/qgisapp.cpp
+++ b/src/app/qgisapp.cpp
@@ -2615,7 +2615,7 @@ void QgisApp::showRasterCalculator()
   {
     //invoke analysis library
     //extent and output resolution will come later...
-    QgsRasterCalculator rc( d.formulaString(), d.outputFile(), d.outputFormat(), d.outputRectangle(), d.numberOfColumns(), d.numberOfRows(), d.rasterEntries() );
+    QgsRasterCalculator rc( d.formulaString(), d.outputFile(), d.outputFormat(), d.outputPixelFormat(), d.outputRectangle(), d.numberOfColumns(), d.numberOfRows(), d.rasterEntries() );
 
     QProgressDialog p( tr( "Calculating..." ), tr( "Abort..." ), 0, 0 );
     p.setWindowModality( Qt::WindowModal );
diff --git a/src/app/qgsrastercalcdialog.cpp b/src/app/qgsrastercalcdialog.cpp
index 875ca34..3df088b 100644
--- a/src/app/qgsrastercalcdialog.cpp
+++ b/src/app/qgsrastercalcdialog.cpp
@@ -80,6 +80,11 @@ QString QgsRasterCalcDialog::outputFormat() const
   return mOutputFormatComboBox->itemData( index ).toString();
 }
 
+QString QgsRasterCalcDialog::outputPixelFormat() const
+{
+  return mOutputPixelFormatComboBox->currentText();
+}
+
 bool QgsRasterCalcDialog::addLayerToProject() const
 {
   return mAddResultToProjectCheckBox->isChecked();
@@ -190,6 +195,20 @@ void QgsRasterCalcDialog::insertAvailableOutputFormats()
   }
 }
 
+// insert available pixel formats
+void QgsRasterCalcDialog::insertPixelFormats()
+{
+  int ii = 0;
+  while ( GDALGetDataTypeName( GDALDataType( ii ) ) )
+  {
+      mOutputPixelFormatComboBox->addItem( GDALGetDataTypeName( GDALDataType( ii ) ), QVariant( GDALGetDataTypeName( GDALDataType( ii ) ) ) );
+      ii++;
+  }
+
+  mOutputPixelFormatComboBox->setCurrentIndex( mOutputPixelFormatComboBox->findText( "Float32" ) );
+
+} 
+
 QgsRectangle QgsRasterCalcDialog::outputRectangle() const
 {
   return QgsRectangle( mXMinSpinBox->value(), mYMinSpinBox->value(), mXMaxSpinBox->value(), mYMaxSpinBox->value() );
@@ -273,6 +292,32 @@ void QgsRasterCalcDialog::on_mExpressionTextEdit_textChanged()
   mButtonBox->button( QDialogButtonBox::Ok )->setEnabled( false );
 }
 
+void QgsRasterCalcDialog::on_mOutputFormatComboBox_currentIndexChanged(int index)
+{
+  // clean items(pixels format) from ComboBox
+  mOutputPixelFormatComboBox->clear( );
+
+  // set pixel format according to the driver from GDALMetadata
+  // if metadata GDAL_DMD_CREATIONDATATYPES are not available for the driver, add all available from GDAL
+  const char * qq = mOutputFormatComboBox->itemData( index ).toString( ).toStdString( ).c_str( );
+  GDALDriverH driver = GDALGetDriverByName( qq );
+  QString driverCreationDataTypes = QString( GDALGetMetadataItem( driver, GDAL_DMD_CREATIONDATATYPES, NULL ) );
+
+  if ( driverCreationDataTypes.isEmpty( ) )
+  {
+    insertPixelFormats();
+  }
+  else
+  {
+    QStringList driverCreationDataTypesList = driverCreationDataTypes.split( " " );
+    mOutputPixelFormatComboBox->addItems( driverCreationDataTypesList );
+    if( mOutputPixelFormatComboBox->findText( "Float32" ) != -1 )
+    {
+      mOutputPixelFormatComboBox->setCurrentIndex( mOutputPixelFormatComboBox->findText( "Float32" ) );
+    }
+  }
+}
+
 void QgsRasterCalcDialog::on_mOutputLayerLineEdit_textChanged( const QString &text )
 {
   Q_UNUSED( text );
diff --git a/src/app/qgsrastercalcdialog.h b/src/app/qgsrastercalcdialog.h
index 852d5b0..e4691df 100644
--- a/src/app/qgsrastercalcdialog.h
+++ b/src/app/qgsrastercalcdialog.h
@@ -32,6 +32,7 @@ class QgsRasterCalcDialog: public QDialog, private Ui::QgsRasterCalcDialogBase
     QString formulaString() const;
     QString outputFile() const;
     QString outputFormat() const;
+    QString outputPixelFormat() const;
     bool addLayerToProject() const;
 
     /**Bounding box for output raster*/
@@ -52,6 +53,7 @@ class QgsRasterCalcDialog: public QDialog, private Ui::QgsRasterCalcDialogBase
     void on_mOutputLayerLineEdit_textChanged( const QString& text );
     /**Enables ok button if calculator expression is valid and output file path exists*/
     void setAcceptButtonState();
+    void on_mOutputFormatComboBox_currentIndexChanged(int index);
 
     //calculator buttons
     void on_mPlusPushButton_clicked();
@@ -81,6 +83,8 @@ class QgsRasterCalcDialog: public QDialog, private Ui::QgsRasterCalcDialogBase
     void insertAvailableOutputFormats();
     /**Accesses the available raster layers/bands from the layer registry*/
     void insertAvailableRasterBands();
+    // insert output pixel formats
+    void insertPixelFormats();
 
     /**Returns true if raster calculator expression has valid syntax*/
     bool expressionValid() const;
diff --git a/src/ui/qgsrastercalcdialogbase.ui b/src/ui/qgsrastercalcdialogbase.ui
index d29567c..8dc8d87 100644
--- a/src/ui/qgsrastercalcdialogbase.ui
+++ b/src/ui/qgsrastercalcdialogbase.ui
@@ -6,8 +6,8 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>651</width>
-    <height>518</height>
+    <width>675</width>
+    <height>551</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -26,6 +26,192 @@
      </layout>
     </widget>
    </item>
+   <item row="1" column="0" colspan="3">
+    <widget class="QGroupBox" name="mOperatorsGroupBox">
+     <property name="title">
+      <string>Operators</string>
+     </property>
+     <layout class="QGridLayout" name="gridLayout">
+      <item row="0" column="0">
+       <widget class="QPushButton" name="mPlusPushButton">
+        <property name="text">
+         <string>+</string>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="1">
+       <widget class="QPushButton" name="mMultiplyPushButton">
+        <property name="text">
+         <string>*</string>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="2">
+       <widget class="QPushButton" name="mSqrtButton">
+        <property name="text">
+         <string>sqrt</string>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="3">
+       <widget class="QPushButton" name="mSinButton">
+        <property name="text">
+         <string>sin</string>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="4">
+       <widget class="QPushButton" name="mExpButton">
+        <property name="text">
+         <string>^</string>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="5">
+       <widget class="QPushButton" name="mACosButton">
+        <property name="text">
+         <string>acos</string>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="6">
+       <widget class="QPushButton" name="mOpenBracketPushButton">
+        <property name="text">
+         <string>(</string>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="0">
+       <widget class="QPushButton" name="mMinusPushButton">
+        <property name="text">
+         <string>-</string>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="1">
+       <widget class="QPushButton" name="mDividePushButton">
+        <property name="text">
+         <string>/</string>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="2">
+       <widget class="QPushButton" name="mCosButton">
+        <property name="text">
+         <string>cos</string>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="3">
+       <widget class="QPushButton" name="mASinButton">
+        <property name="text">
+         <string>asin</string>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="4">
+       <widget class="QPushButton" name="mTanButton">
+        <property name="text">
+         <string>tan</string>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="5">
+       <widget class="QPushButton" name="mATanButton">
+        <property name="text">
+         <string>atan</string>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="6">
+       <widget class="QPushButton" name="mCloseBracketPushButton">
+        <property name="text">
+         <string>)</string>
+        </property>
+       </widget>
+      </item>
+      <item row="2" column="0">
+       <widget class="QPushButton" name="mLessButton">
+        <property name="text">
+         <string>&lt;</string>
+        </property>
+       </widget>
+      </item>
+      <item row="2" column="1">
+       <widget class="QPushButton" name="mGreaterButton">
+        <property name="text">
+         <string>&gt;</string>
+        </property>
+       </widget>
+      </item>
+      <item row="2" column="2">
+       <widget class="QPushButton" name="mEqualButton">
+        <property name="text">
+         <string>=</string>
+        </property>
+       </widget>
+      </item>
+      <item row="2" column="6">
+       <widget class="QPushButton" name="mOrButton">
+        <property name="text">
+         <string>OR</string>
+        </property>
+       </widget>
+      </item>
+      <item row="2" column="5">
+       <widget class="QPushButton" name="mAndButton">
+        <property name="text">
+         <string>AND</string>
+        </property>
+       </widget>
+      </item>
+      <item row="2" column="3">
+       <widget class="QPushButton" name="mLesserEqualButton">
+        <property name="text">
+         <string>&lt;=</string>
+        </property>
+       </widget>
+      </item>
+      <item row="2" column="4">
+       <widget class="QPushButton" name="mGreaterEqualButton">
+        <property name="text">
+         <string>&gt;=</string>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item row="2" column="0">
+    <widget class="QLabel" name="mRasterCalculatorExpressionLabel">
+     <property name="text">
+      <string>Raster calculator expression</string>
+     </property>
+     <property name="buddy">
+      <cstring>mExpressionTextEdit</cstring>
+     </property>
+    </widget>
+   </item>
+   <item row="3" column="0" colspan="3">
+    <widget class="QTextEdit" name="mExpressionTextEdit"/>
+   </item>
+   <item row="4" column="1" colspan="2">
+    <widget class="QDialogButtonBox" name="mButtonBox">
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+     <property name="standardButtons">
+      <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
+     </property>
+    </widget>
+   </item>
+   <item row="4" column="0">
+    <widget class="QLabel" name="mExpressionValidLabel">
+     <property name="text">
+      <string/>
+     </property>
+    </widget>
+   </item>
    <item row="0" column="2">
     <widget class="QGroupBox" name="mResultGroupBox">
      <property name="title">
@@ -42,10 +228,10 @@
         </property>
        </widget>
       </item>
-      <item row="0" column="2">
+      <item row="0" column="1" colspan="4">
        <widget class="QLineEdit" name="mOutputLayerLineEdit"/>
       </item>
-      <item row="0" column="3">
+      <item row="0" column="6">
        <widget class="QPushButton" name="mOutputLayerPushButton">
         <property name="sizePolicy">
          <sizepolicy hsizetype="Preferred" vsizetype="Fixed">
@@ -71,7 +257,7 @@
         </property>
        </widget>
       </item>
-      <item row="1" column="1" colspan="3">
+      <item row="1" column="1" colspan="6">
        <spacer name="horizontalSpacer">
         <property name="orientation">
          <enum>Qt::Horizontal</enum>
@@ -84,7 +270,7 @@
         </property>
        </spacer>
       </item>
-      <item row="2" column="0" colspan="4">
+      <item row="2" column="0" colspan="7">
        <layout class="QGridLayout" name="gridLayout_3">
         <item row="0" column="0">
          <widget class="QLabel" name="mXMinLabel">
@@ -203,10 +389,7 @@
         </property>
        </widget>
       </item>
-      <item row="3" column="2">
-       <widget class="QComboBox" name="mOutputFormatComboBox"/>
-      </item>
-      <item row="4" column="0" colspan="2">
+      <item row="4" column="0" colspan="3">
        <widget class="QCheckBox" name="mAddResultToProjectCheckBox">
         <property name="text">
          <string>Add result to project</string>
@@ -216,195 +399,35 @@
         </property>
        </widget>
       </item>
-     </layout>
-    </widget>
-   </item>
-   <item row="1" column="0" colspan="3">
-    <widget class="QGroupBox" name="mOperatorsGroupBox">
-     <property name="title">
-      <string>Operators</string>
-     </property>
-     <layout class="QGridLayout" name="gridLayout">
-      <item row="0" column="0">
-       <widget class="QPushButton" name="mPlusPushButton">
-        <property name="text">
-         <string>+</string>
-        </property>
-       </widget>
-      </item>
-      <item row="0" column="1">
-       <widget class="QPushButton" name="mMultiplyPushButton">
-        <property name="text">
-         <string>*</string>
-        </property>
-       </widget>
-      </item>
-      <item row="0" column="2">
-       <widget class="QPushButton" name="mSqrtButton">
-        <property name="text">
-         <string>sqrt</string>
-        </property>
-       </widget>
-      </item>
-      <item row="0" column="3">
-       <widget class="QPushButton" name="mSinButton">
-        <property name="text">
-         <string>sin</string>
-        </property>
-       </widget>
-      </item>
-      <item row="0" column="4">
-       <widget class="QPushButton" name="mExpButton">
-        <property name="text">
-         <string>^</string>
-        </property>
-       </widget>
-      </item>
-      <item row="0" column="5">
-       <widget class="QPushButton" name="mACosButton">
-        <property name="text">
-         <string>acos</string>
-        </property>
-       </widget>
-      </item>
-      <item row="0" column="6">
-       <widget class="QPushButton" name="mOpenBracketPushButton">
-        <property name="text">
-         <string>(</string>
-        </property>
-       </widget>
-      </item>
-      <item row="1" column="0">
-       <widget class="QPushButton" name="mMinusPushButton">
-        <property name="text">
-         <string>-</string>
-        </property>
-       </widget>
-      </item>
-      <item row="1" column="1">
-       <widget class="QPushButton" name="mDividePushButton">
-        <property name="text">
-         <string>/</string>
-        </property>
-       </widget>
-      </item>
-      <item row="1" column="2">
-       <widget class="QPushButton" name="mCosButton">
-        <property name="text">
-         <string>cos</string>
-        </property>
-       </widget>
-      </item>
-      <item row="1" column="3">
-       <widget class="QPushButton" name="mASinButton">
-        <property name="text">
-         <string>asin</string>
-        </property>
-       </widget>
-      </item>
-      <item row="1" column="4">
-       <widget class="QPushButton" name="mTanButton">
-        <property name="text">
-         <string>tan</string>
-        </property>
-       </widget>
-      </item>
-      <item row="1" column="5">
-       <widget class="QPushButton" name="mATanButton">
-        <property name="text">
-         <string>atan</string>
-        </property>
-       </widget>
-      </item>
-      <item row="1" column="6">
-       <widget class="QPushButton" name="mCloseBracketPushButton">
-        <property name="text">
-         <string>)</string>
-        </property>
-       </widget>
-      </item>
-      <item row="2" column="0">
-       <widget class="QPushButton" name="mLessButton">
-        <property name="text">
-         <string>&lt;</string>
-        </property>
-       </widget>
-      </item>
-      <item row="2" column="1">
-       <widget class="QPushButton" name="mGreaterButton">
-        <property name="text">
-         <string>&gt;</string>
-        </property>
-       </widget>
-      </item>
-      <item row="2" column="2">
-       <widget class="QPushButton" name="mEqualButton">
-        <property name="text">
-         <string>=</string>
+      <item row="3" column="3">
+       <spacer name="horizontalSpacer_2">
+        <property name="orientation">
+         <enum>Qt::Horizontal</enum>
         </property>
-       </widget>
-      </item>
-      <item row="2" column="6">
-       <widget class="QPushButton" name="mOrButton">
-        <property name="text">
-         <string>OR</string>
+        <property name="sizeHint" stdset="0">
+         <size>
+          <width>40</width>
+          <height>20</height>
+         </size>
         </property>
-       </widget>
+       </spacer>
       </item>
-      <item row="2" column="5">
-       <widget class="QPushButton" name="mAndButton">
-        <property name="text">
-         <string>AND</string>
-        </property>
-       </widget>
+      <item row="3" column="1">
+       <widget class="QComboBox" name="mOutputFormatComboBox"/>
       </item>
-      <item row="2" column="3">
-       <widget class="QPushButton" name="mLesserEqualButton">
+      <item row="3" column="4">
+       <widget class="QLabel" name="mOutputPixelFormatLabel">
         <property name="text">
-         <string>&lt;=</string>
+         <string>Pixel format</string>
         </property>
        </widget>
       </item>
-      <item row="2" column="4">
-       <widget class="QPushButton" name="mGreaterEqualButton">
-        <property name="text">
-         <string>&gt;=</string>
-        </property>
-       </widget>
+      <item row="3" column="6">
+       <widget class="QComboBox" name="mOutputPixelFormatComboBox"/>
       </item>
      </layout>
     </widget>
    </item>
-   <item row="2" column="0">
-    <widget class="QLabel" name="mRasterCalculatorExpressionLabel">
-     <property name="text">
-      <string>Raster calculator expression</string>
-     </property>
-     <property name="buddy">
-      <cstring>mExpressionTextEdit</cstring>
-     </property>
-    </widget>
-   </item>
-   <item row="3" column="0" colspan="3">
-    <widget class="QTextEdit" name="mExpressionTextEdit"/>
-   </item>
-   <item row="4" column="1" colspan="2">
-    <widget class="QDialogButtonBox" name="mButtonBox">
-     <property name="orientation">
-      <enum>Qt::Horizontal</enum>
-     </property>
-     <property name="standardButtons">
-      <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
-     </property>
-    </widget>
-   </item>
-   <item row="4" column="0">
-    <widget class="QLabel" name="mExpressionValidLabel">
-     <property name="text">
-      <string/>
-     </property>
-    </widget>
-   </item>
   </layout>
  </widget>
  <resources/>