diff --git a/openlp/core/lib/__init__.py b/openlp/core/lib/__init__.py
index 155c10141..14d67e914 100644
--- a/openlp/core/lib/__init__.py
+++ b/openlp/core/lib/__init__.py
@@ -30,6 +30,7 @@
 The :mod:`lib` module contains most of the components and libraries that make
 OpenLP work.
 """
+from __future__ import division
 from distutils.version import LooseVersion
 import logging
 import os
@@ -207,7 +208,7 @@ def create_thumb(image_path, thumb_path, return_icon=True, size=None):
     ext = os.path.splitext(thumb_path)[1].lower()
     reader = QtGui.QImageReader(image_path)
     if size is None:
-        ratio = float(reader.size().width()) / float(reader.size().height())
+        ratio = reader.size().width() / reader.size().height()
         reader.setScaledSize(QtCore.QSize(int(ratio * 88), 88))
     else:
         reader.setScaledSize(size)
@@ -260,8 +261,8 @@ def resize_image(image_path, width, height, background=u'#000000'):
     log.debug(u'resize_image - start')
     reader = QtGui.QImageReader(image_path)
     # The image's ratio.
-    image_ratio = float(reader.size().width()) / float(reader.size().height())
-    resize_ratio = float(width) / float(height)
+    image_ratio = reader.size().width() / reader.size().height()
+    resize_ratio = width / height
     # Figure out the size we want to resize the image to (keep aspect ratio).
     if image_ratio == resize_ratio:
         size = QtCore.QSize(width, height)
@@ -282,7 +283,7 @@ def resize_image(image_path, width, height, background=u'#000000'):
     new_image = QtGui.QImage(width, height, QtGui.QImage.Format_ARGB32_Premultiplied)
     painter = QtGui.QPainter(new_image)
     painter.fillRect(new_image.rect(), QtGui.QColor(background))
-    painter.drawImage((width - real_width) / 2, (height - real_height) / 2, preview)
+    painter.drawImage((width - real_width) // 2, (height - real_height) // 2, preview)
     return new_image
 
 
diff --git a/openlp/core/lib/dockwidget.py b/openlp/core/lib/dockwidget.py
index 30182c901..15c116e0f 100644
--- a/openlp/core/lib/dockwidget.py
+++ b/openlp/core/lib/dockwidget.py
@@ -30,6 +30,7 @@
 """
 Provide additional functionality required by OpenLP from the inherited QDockWidget.
 """
+from __future__ import division
 import logging
 
 from PyQt4 import QtGui
@@ -55,7 +56,7 @@ class OpenLPDockWidget(QtGui.QDockWidget):
             self.setWindowIcon(build_icon(icon))
         # Sort out the minimum width.
         screens = ScreenList()
-        main_window_docbars = screens.current[u'size'].width() / 5
+        main_window_docbars = screens.current[u'size'].width() // 5
         if main_window_docbars > 300:
             self.setMinimumWidth(300)
         else:
diff --git a/openlp/core/lib/htmlbuilder.py b/openlp/core/lib/htmlbuilder.py
index 9c8b04076..d4e22b0dd 100644
--- a/openlp/core/lib/htmlbuilder.py
+++ b/openlp/core/lib/htmlbuilder.py
@@ -26,7 +26,7 @@
 # with this program; if not, write to the Free Software Foundation, Inc., 59  #
 # Temple Place, Suite 330, Boston, MA 02111-1307 USA                          #
 ###############################################################################
-
+from __future__ import division
 import logging
 
 from PyQt4 import QtWebKit
@@ -276,7 +276,7 @@ def build_background_css(item, width):
     ``item``
         Service Item containing theme and location information
     """
-    width = int(width) / 2
+    width = int(width) // 2
     theme = item.themedata
     background = u'background-color: black'
     if theme:
diff --git a/openlp/core/lib/renderer.py b/openlp/core/lib/renderer.py
index c426e8871..5161246c0 100644
--- a/openlp/core/lib/renderer.py
+++ b/openlp/core/lib/renderer.py
@@ -26,7 +26,7 @@
 # with this program; if not, write to the Free Software Foundation, Inc., 59  #
 # Temple Place, Suite 330, Boston, MA 02111-1307 USA                          #
 ###############################################################################
-
+from __future__ import division
 import logging
 
 from PyQt4 import QtGui, QtCore, QtWebKit
@@ -327,7 +327,7 @@ class Renderer(object):
         screen_size = self.screens.current[u'size']
         self.width = screen_size.width()
         self.height = screen_size.height()
-        self.screen_ratio = float(self.height) / float(self.width)
+        self.screen_ratio = self.height / self.width
         log.debug(u'_calculate default %s, %f' % (screen_size, self.screen_ratio))
         # 90% is start of footer
         self.footer_start = int(self.height * 0.90)
@@ -546,15 +546,15 @@ class Renderer(object):
         """
         smallest_index = 0
         highest_index = len(html_list) - 1
-        index = int(highest_index / 2)
+        index = highest_index // 2
         while True:
             if not self._text_fits_on_slide(previous_html + separator.join(html_list[:index + 1]).strip()):
                 # We know that it does not fit, so change/calculate the new index and highest_index accordingly.
                 highest_index = index
-                index = int(index - (index - smallest_index) / 2)
+                index = index - (index - smallest_index) // 2
             else:
                 smallest_index = index
-                index = int(index + (highest_index - index) / 2)
+                index = index + (highest_index - index) // 2
             # We found the number of words which will fit.
             if smallest_index == index or highest_index == index:
                 index = smallest_index
@@ -582,7 +582,7 @@ class Renderer(object):
                 html_list[0] = html_tags + html_list[0]
                 smallest_index = 0
                 highest_index = len(html_list) - 1
-                index = int(highest_index / 2)
+                index = highest_index // 2
         return previous_html, previous_raw
 
     def _text_fits_on_slide(self, text):
diff --git a/openlp/core/lib/screen.py b/openlp/core/lib/screen.py
index 84e7e4258..146b492db 100644
--- a/openlp/core/lib/screen.py
+++ b/openlp/core/lib/screen.py
@@ -30,6 +30,7 @@
 The :mod:`screen` module provides management functionality for a machines'
 displays.
 """
+from __future__ import division
 import logging
 import copy
 
@@ -232,8 +233,8 @@ class ScreenList(object):
         ``window``
             A QWidget we are finding the location of.
         """
-        x = window.x() + (window.width() / 2)
-        y = window.y() + (window.height() / 2)
+        x = window.x() + (window.width() // 2)
+        y = window.y() + (window.height() // 2)
         for screen in self.screen_list:
             size = screen[u'size']
             if x >= size.x() and x <= (size.x() + size.width()) and y >= size.y() and y <= (size.y() + size.height()):
diff --git a/openlp/core/lib/searchedit.py b/openlp/core/lib/searchedit.py
index 9623b0f53..a0c51cb74 100644
--- a/openlp/core/lib/searchedit.py
+++ b/openlp/core/lib/searchedit.py
@@ -26,7 +26,7 @@
 # with this program; if not, write to the Free Software Foundation, Inc., 59  #
 # Temple Place, Suite 330, Boston, MA 02111-1307 USA                          #
 ###############################################################################
-
+from __future__ import division
 import logging
 
 from PyQt4 import QtCore, QtGui
@@ -85,10 +85,10 @@ class SearchEdit(QtGui.QLineEdit):
         size = self.clear_button.size()
         frame_width = self.style().pixelMetric(QtGui.QStyle.PM_DefaultFrameWidth)
         self.clear_button.move(self.rect().right() - frame_width - size.width(),
-            (self.rect().bottom() + 1 - size.height()) / 2)
+            (self.rect().bottom() + 1 - size.height()) // 2)
         if hasattr(self, u'menu_button'):
             size = self.menu_button.size()
-            self.menu_button.move(self.rect().left() + frame_width + 2, (self.rect().bottom() + 1 - size.height()) / 2)
+            self.menu_button.move(self.rect().left() + frame_width + 2, (self.rect().bottom() + 1 - size.height()) // 2)
 
     def current_search_type(self):
         """
diff --git a/openlp/core/ui/maindisplay.py b/openlp/core/ui/maindisplay.py
index 2504520c0..02ae469d6 100644
--- a/openlp/core/ui/maindisplay.py
+++ b/openlp/core/ui/maindisplay.py
@@ -35,6 +35,7 @@ Some of the code for this form is based on the examples at:
 * `http://html5demos.com/two-videos`_
 
 """
+from __future__ import division
 import cgi
 import logging
 import sys
@@ -207,8 +208,8 @@ class MainDisplay(Display):
             painter_image.begin(self.initial_fame)
             painter_image.fillRect(self.initial_fame.rect(), background_color)
             painter_image.drawImage(
-                (self.screen[u'size'].width() - splash_image.width()) / 2,
-                (self.screen[u'size'].height() - splash_image.height()) / 2,
+                (self.screen[u'size'].width() - splash_image.width()) // 2,
+                (self.screen[u'size'].height() - splash_image.height()) // 2,
                 splash_image)
             service_item = ServiceItem()
             service_item.bg_image_bytes = image_to_byte(self.initial_fame)
@@ -268,7 +269,7 @@ class MainDisplay(Display):
                 self.resize(self.width(), alert_height)
                 self.setVisible(True)
                 if location == AlertLocation.Middle:
-                    self.move(self.screen[u'size'].left(), (self.screen[u'size'].height() - alert_height) / 2)
+                    self.move(self.screen[u'size'].left(), (self.screen[u'size'].height() - alert_height) // 2)
                 elif location == AlertLocation.Bottom:
                     self.move(self.screen[u'size'].left(), self.screen[u'size'].height() - alert_height)
             else:
diff --git a/openlp/core/ui/themestab.py b/openlp/core/ui/themestab.py
index f0f821494..d6dba2880 100644
--- a/openlp/core/ui/themestab.py
+++ b/openlp/core/ui/themestab.py
@@ -29,6 +29,8 @@
 """
 The Themes configuration tab
 """
+from __future__ import division
+
 from PyQt4 import QtCore, QtGui
 
 from openlp.core.lib import Registry, Settings, SettingsTab, UiStrings, translate
@@ -90,7 +92,7 @@ class ThemesTab(SettingsTab):
         self.global_level_label.setObjectName(u'global_level_label')
         self.level_layout.addRow(self.global_level_radio_button, self.global_level_label)
         label_top_margin = (self.song_level_radio_button.sizeHint().height() -
-            self.song_level_label.sizeHint().height()) / 2
+            self.song_level_label.sizeHint().height()) // 2
         for label in [self.song_level_label, self.service_level_label, self.global_level_label]:
             rect = label.rect()
             rect.setTop(rect.top() + label_top_margin)