diff --git a/src/Gui/DlgUnitsCalculator.ui b/src/Gui/DlgUnitsCalculator.ui
index 82dc21fd04..24dc2d0583 100644
--- a/src/Gui/DlgUnitsCalculator.ui
+++ b/src/Gui/DlgUnitsCalculator.ui
@@ -114,15 +114,15 @@ To add a calculation press Return in the value input field</string>
       <item row="0" column="2">
        <widget class="QLabel" name="label_6">
         <property name="text">
-         <string>Unit System:</string>
+         <string>Unit system:</string>
         </property>
        </widget>
       </item>
       <item row="0" column="3">
        <widget class="QComboBox" name="comboBoxScheme">
         <property name="toolTip">
-         <string>Unit system to be used to the Quantity
-The preference system is the one set in the FreeCAD preferences</string>
+         <string>Unit system to be used for the Quantity
+The preference system is the one set in the general preferences.</string>
         </property>
        </widget>
       </item>
@@ -152,7 +152,7 @@ The preference system is the one set in the FreeCAD preferences</string>
       <item row="1" column="2">
        <widget class="QLabel" name="label_4">
         <property name="text">
-         <string>Unit Category:</string>
+         <string>Unit category:</string>
         </property>
        </widget>
       </item>