diff --git a/TabletDriverGUI/MainWindow.Areas.cs b/TabletDriverGUI/MainWindow.Areas.cs
index a660d7d..9904e28 100644
--- a/TabletDriverGUI/MainWindow.Areas.cs
+++ b/TabletDriverGUI/MainWindow.Areas.cs
@@ -1514,7 +1514,29 @@ private void CanvasArea_ContextMenuOpening(object sender, ContextMenuEventArgs e
 
         }
 
-
+        private void ConvertMouse_Click(object sender, RoutedEventArgs e)
+        {
+            var wcm = new WindowConvertMouse();
+            wcm.ShowDialog();
+            if (!wcm.DialogResult.HasValue || !wcm.DialogResult.Value) return;
+
+            const double inchesToMm = 25.4;
+            var width = config.DesktopSize.Width / wcm.Dpi * inchesToMm;
+            var height = config.DesktopSize.Height / wcm.Dpi * inchesToMm;
+            var x = config.TabletFullArea.Width / 2;
+            var y = config.TabletFullArea.Height / 2;
+
+            textTabletAreaWidth.Text = width.ToString();
+            textTabletAreaHeight.Text = height.ToString();
+            textTabletAreaX.Text = x.ToString();
+            textTabletAreaY.Text = y.ToString();
+            config.SelectedTabletArea.Width = width;
+            config.SelectedTabletArea.Height = height;
+            config.SelectedTabletArea.X = x;
+            config.SelectedTabletArea.Y = y;
+            
+            UpdateSettingsToConfiguration();
+        }
 
         #region Wacom / Draw area
 
diff --git a/TabletDriverGUI/MainWindow.xaml b/TabletDriverGUI/MainWindow.xaml
index f20350b..20a4af3 100644
--- a/TabletDriverGUI/MainWindow.xaml
+++ b/TabletDriverGUI/MainWindow.xaml
@@ -411,7 +411,17 @@
                       </Button>
 
                     </StackPanel>
-                  </StackPanel>
+                    <Button x:Name="ConvertMouse" Content="Convert mouse DPI" Height="28" Width="115" 
+                            Margin="0,5,0,0" IsCancel="True" Click="ConvertMouse_Click">
+                        <Button.ToolTip>
+                            <TextBlock>
+                                <TextBlock FontWeight="Bold" FontSize="14">Convert mouse DPI</TextBlock>
+                                <LineBreak/>
+                                Matches the physical movement of your mouse to the physical movement of your pen.
+                            </TextBlock>
+                            </Button.ToolTip>
+                         </Button>
+                     </StackPanel>
 
                   <!-- Tablet area canvas -->
                   <Canvas Grid.Column="1" Name="canvasTabletArea"
diff --git a/TabletDriverGUI/TabletDriverGUI.csproj b/TabletDriverGUI/TabletDriverGUI.csproj
index 43089b5..476fabc 100644
--- a/TabletDriverGUI/TabletDriverGUI.csproj
+++ b/TabletDriverGUI/TabletDriverGUI.csproj
@@ -80,6 +80,9 @@
     <Compile Include="MainWindow.Areas.cs" />
     <Compile Include="MultimediaTimer.cs" />
     <Compile Include="NamedPipeClient.cs" />
+    <Compile Include="WindowConvertMouse.xaml.cs">
+      <DependentUpon>WindowConvertMouse.xaml</DependentUpon>
+    </Compile>
     <Compile Include="WindowTabletViewSettings.xaml.cs">
       <DependentUpon>WindowTabletViewSettings.xaml</DependentUpon>
     </Compile>
@@ -106,6 +109,10 @@
     <Compile Include="WindowAreaEditor.xaml.cs">
       <DependentUpon>WindowAreaEditor.xaml</DependentUpon>
     </Compile>
+    <Page Include="WindowConvertMouse.xaml">
+      <SubType>Designer</SubType>
+      <Generator>MSBuild:Compile</Generator>
+    </Page>
     <Page Include="WindowTabletViewSettings.xaml">
       <SubType>Designer</SubType>
       <Generator>MSBuild:Compile</Generator>
diff --git a/TabletDriverGUI/WindowConvertMouse.xaml b/TabletDriverGUI/WindowConvertMouse.xaml
new file mode 100644
index 0000000..4d6fa62
--- /dev/null
+++ b/TabletDriverGUI/WindowConvertMouse.xaml
@@ -0,0 +1,28 @@
+<Window x:Class="TabletDriverGUI.WindowConvertMouse"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:TabletDriverGUI"
+        mc:Ignorable="d"
+        Title="Enter mouse DPI" Height="115.099" Width="205.247" ScrollViewer.VerticalScrollBarVisibility="Disabled" ResizeMode="CanMinimize" ShowInTaskbar="False" WindowStartupLocation="CenterOwner" Activated="Window_Activated">
+    <Grid HorizontalAlignment="Left" Width="197">
+        <Grid HorizontalAlignment="Center" VerticalAlignment="Center">
+
+            <Grid Margin="0">
+                <Label Content="Mouse DPI:" HorizontalAlignment="Left" VerticalAlignment="Top"/>
+                <TextBox x:Name="DpiText" HorizontalAlignment="Left" TextWrapping="Wrap" VerticalAlignment="Top" Width="95" VerticalContentAlignment="Center" Margin="70,2,0,0" Height="22"/>
+                <Label Content="dpi" HorizontalAlignment="Left" VerticalAlignment="Top" Margin="138,0,0,0" Height="28"/>
+
+            </Grid>
+            <Grid Margin="0,31,0,0">
+
+                <Button x:Name="Ok" Content="_OK" VerticalAlignment="Center" Click="Ok_Click" Margin="70,0,5,0" Width="59" IsDefault="True" Height="28"/>
+                <Button x:Name="Cancel" Content="_Cancel" VerticalAlignment="Center" Click="Cancel_Click" Margin="0,0,70,0" Width="60" IsCancel="True" Height="28"/>
+
+            </Grid>
+
+        </Grid>
+
+    </Grid>
+</Window>
diff --git a/TabletDriverGUI/WindowConvertMouse.xaml.cs b/TabletDriverGUI/WindowConvertMouse.xaml.cs
new file mode 100644
index 0000000..fbb8657
--- /dev/null
+++ b/TabletDriverGUI/WindowConvertMouse.xaml.cs
@@ -0,0 +1,54 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Shapes;
+
+namespace TabletDriverGUI
+{
+    /// <summary>
+    /// Interaction logic for WindowConvertMouse.xaml
+    /// </summary>
+    public partial class WindowConvertMouse : Window
+    {
+        public double Dpi;
+
+        public WindowConvertMouse()
+        {
+            InitializeComponent();
+        }
+
+        private void Window_Activated(object sender, EventArgs e)
+        {
+            FocusManager.SetFocusedElement(this, DpiText);
+        }
+
+        private void Ok_Click(object sender, RoutedEventArgs e)
+        {
+            bool valid = double.TryParse(DpiText.Text, out Dpi);
+            if (valid)
+            {
+                DialogResult = true;
+                Close();
+            }
+            else
+            {
+                MessageBox.Show("The entered value is not a number.");
+            }
+        }
+
+        private void Cancel_Click(object sender, RoutedEventArgs e)
+        {
+            DialogResult = false;
+            Close();
+        }
+    }
+}