diff --git a/src/qtgui/advsearch.ui b/src/qtgui/advsearch.ui
index 72d26c16..f44f18f9 100644
--- a/src/qtgui/advsearch.ui
+++ b/src/qtgui/advsearch.ui
@@ -145,6 +145,46 @@
      </item>
     </layout>
    </item>
+   <item>
+    <widget class="Line" name="line2">
+     <property name="frameShape">
+      <enum>QFrame::HLine</enum>
+     </property>
+     <property name="frameShadow">
+      <enum>QFrame::Sunken</enum>
+     </property>
+    </widget>
+   </item>
+   <item>
+   <layout class="QHBoxLayout" name="horizontalLayout">
+    <item>
+     <widget class="QLabel" name="labelminsize">
+      <property name="toolTip">
+       <string>Minimum size. You can use k/K,m/M,g/G as multipliers</string>
+      </property>
+      <property name="text">
+       <string>Min. Size</string>
+      </property>
+     </widget>
+    </item>
+    <item>
+     <widget class="QLineEdit" name="minSizeLE"/>
+    </item>
+    <item>
+     <widget class="QLabel" name="labelmaxsize">
+      <property name="toolTip">
+       <string>Maximum size. You can use k/K,m/M,g/G as multipliers</string>
+      </property>
+      <property name="text">
+       <string>Max. Size</string>
+      </property>
+     </widget>
+    </item>
+    <item>
+     <widget class="QLineEdit" name="maxSizeLE"/>
+    </item>
+   </layout>
+   </item>
    <item>
     <widget class="Line" name="line4">
      <property name="frameShape">
diff --git a/src/qtgui/advsearch_w.cpp b/src/qtgui/advsearch_w.cpp
index 01a50bc4..843ef50a 100644
--- a/src/qtgui/advsearch_w.cpp
+++ b/src/qtgui/advsearch_w.cpp
@@ -300,6 +300,30 @@ void AdvSearch::saveFileTypes()
     rwSettings(true);
 }
 
+size_t AdvSearch::stringToSize(QString qsize)
+{
+    size_t size = size_t(-1);
+    qsize.replace(QRegExp("[\\s]+"), "");
+    if (!qsize.isEmpty()) {
+	string csize((const char*)qsize.toAscii());
+	char *cp;
+	size = strtoll(csize.c_str(), &cp, 10);
+	if (*cp != 0) {
+	    switch (*cp) {
+	    case 'k': case 'K': size *= 1E3;break;
+	    case 'm': case 'M': size *= 1E6;break;
+	    case 'g': case 'G': size *= 1E9;break;
+	    case 't': case 'T': size *= 1E12;break;
+	    default: 
+		QMessageBox::warning(0, "Recoll", 
+			     tr("Bad multiplier suffix in size filter"));
+		size = size_t(-1);
+	    }
+	}
+    }
+    return size;
+}
+
 using namespace Rcl;
 void AdvSearch::runSearch()
 {
@@ -343,6 +367,11 @@ void AdvSearch::runSearch()
 	}
     }
 
+    size_t size = stringToSize(minSizeLE->text());
+    sdata->setMinSize(size);
+    size = stringToSize(maxSizeLE->text());
+    sdata->setMaxSize(size);
+
     if (!subtreeCMB->currentText().isEmpty()) {
 	QString current = subtreeCMB->currentText();
 	sdata->setTopdir((const char*)subtreeCMB->currentText().toUtf8(),
diff --git a/src/qtgui/advsearch_w.h b/src/qtgui/advsearch_w.h
index bed61de4..cdd51abf 100644
--- a/src/qtgui/advsearch_w.h
+++ b/src/qtgui/advsearch_w.h
@@ -68,6 +68,7 @@ private:
     bool                       m_ignByCats;
     void saveCnf();
     void fillFileTypes();
+    size_t stringToSize(QString);
 };
 
 
diff --git a/src/utils/smallut.cpp b/src/utils/smallut.cpp
index 7baf2c06..62482f0b 100644
--- a/src/utils/smallut.cpp
+++ b/src/utils/smallut.cpp
@@ -594,17 +594,17 @@ string displayableBytes(off_t size)
     char sizebuf[50];
     const char *unit;
 
-    if (size < 1024) {
+    if (size < 1000) {
 	unit = " B ";
-    } else if (size < 1024*1024) {
+    } else if (size < 1E6) {
 	unit = " KB ";
-	size /= 1024;
-    } else if (size < 1024*1024*1024) {
+	size /= 1000;
+    } else if (size < 1E9) {
 	unit = " MB ";
-	size /= (1024*1024);
+	size /= (1E6);
     } else {
 	unit = " GB ";
-	size /= (1024*1024*1024);
+	size /= (1E9);
     }
 
     sprintf(sizebuf, OFFTPC "%s", size, unit);